Categories: Hematology | Disease stubs The World Health Organization (WHO) is a specialized agency of the United Nations (UN) that acts as a coordinating authority on international public health. ... Pathology (from Greek pathos, feeling, pain, suffering; and logos, study of; see also -ology) is the study of the processes underlying disease and other forms of illness, harmful abnormality, or dysfunction. ... Hematology is the branch of medicine that is concerned with blood and its disorders. ... Although hematological malignancies are a form of cancer, they are generally treated by specialists in hematology, although in many hospitals oncology specialists also manage these diseases. ... A scanning electron microscope image of normal circulating human blood. ... Wikipedia does not have an article with this exact name. ... Lymphoid leukemia is a type of leukemia affecting lymphoid tissue. ... Acute lymphoblastic leukemia (ALL), also known as acute lymphocytic leukemia, is a form of leukemia, characterised by the overproduction and continuous multiplication of malignant and immature white blood cells (also known as lymphoblasts) in the bone marrow. ... Chronic lymphocytic leukemia (or chronic lymphoid leukemia), known for short as CLL, is a type of leukemia in which too many lymphocytes are produced. ... Hairy cell leukemia is a B cell neoplasm. ... This article is about lymphoma in humans. ... Hodgkins lymphoma, also known as Hodgkins disease, is a type of lymphoma first described by Thomas Hodgkin in 1832. ... Non-Hodgkin lymphoma is a cancer arising from lymphocytes, a type of white blood cells. ... Lymphoproliferative disorders (LPDs) refer to several conditions in which lymphocytes are produced in excessive quantities. ... Multiple myeloma (also known simply as myeloma or plasma cell myeloma) is a hematological malignancy of plasma cells, the cells of the immune system that produce antibodies. ... Multiple myeloma (also known as MM, myeloma, plasma cell myeloma, or as Kahlers disease after Otto Kahler) is a type of cancer of plasma cells which are immune system cells in bone marrow that produce antibodies. ... Plasmacytoma refers to a malignant monoclonal plasma cell tumor growing either in bone or soft tissue. ... Myeloid cells is a subsummating term for all hemopoietic cells except the lymphoid ones (T-cells, B-cells, NK-cells, dendritic cells). ... Myeloid leukaemia can refer to: Acute myelogenous leukemia Chronic myelogenous leukemia Category: Disambiguation ... Acute myelogenous leukemia (AML), also known as acute myeloid leukemia, is a cancer of the myeloid line of blood cells. ... Chronic myelogenous leukemia (CML) is a form of chronic leukemia characterized by increased and unregulated clonal production of predominantly myeloid cells in the bone marrow. ... The myeloproliferative diseases are a group of diseases of the bone marrow where excess cells are produced. ... Essential thrombocytosis (ET, essential thrombocythemia) is a rare chronic blood disorder characterized by the overproduction of platelets by megakaryocytes (the precursor cell for platelets) in the absence of an alternative cause. ... Polycythemia is a condition in which there is a net increase in the total circulating erythrocyte (red blood cell) mass of the body. ... The myelodysplastic syndromes (MDS, formerly known as preleukemia) are a diverse collection of hematological conditions united by ineffective production of blood cells and varying risks of transformation to acute myelogenous leukemia. ... Leukocytosis is an elevation of the white blood cell count (the leukocyte count) above the normal range. ... Lymphocytosis is an increase in the number of lymphocytes in the blood. ... Monocytosis is an increase in the number of circulating monocytes. ... Eosinophilia is the state of having high eosinophil granulocytes in the blood. ... Lymphopenia is the condition in which there exists an abnormally low number of lymphocytes in the blood. ... Neutropenia (or neutropaenia, adjective neutrop(a)enic) is a hematological disorder characterized by an abnormally low number of neutrophil granulocytes (a type of white blood cell). ... Human red blood cells Red blood cells are the most common type of blood cell and the vertebrate bodys principal means of delivering oxygen from the lungs or gills to body tissues via the blood. ... Anemia (AmE) or anæmia (BrE), from the Greek () meaning without blood, is a deficiency of red blood cells (RBCs) and/or hemoglobin. ... Hemoglobinopathy is a kind of genetic defect that results in abnormal structure of one of the globin chains of the hemoglobin molecule. ... Iron deficiency anemia is the most common type of anemia, and the most common cause of microcytic anemia. ... The Plummer-Vinson syndrome, also called Paterson-Kelly syndrome or sideropenic dysphagia is a disorder linked to severe, long-term iron deficiency anemia, which causes swallowing difficulty (dysphagia) due to web-like membranes of tissue growing in the throat (esophageal webs). ... I think this is cool Pernicious anemia is loosely used to mean a state of anemia due to vitamin B12 deficiency. ... Megaloblastic anemia blood smear Megaloblastic anemia is an anemia (of macrocytic classification) which results from a deficiency of vitamin B12 and folic acid. ... Hemolytic anemia is anemia due to hemolysis, the abnormal breakdown of red blood cells either in the blood vessels (intravascular hemolysis) or elsewhere in the body (extravascular). ... Glucose-6-phosphate dehydrogenase (G6PD) deficiency is an X-linked recessive hereditary disease featuring nonimmune hemolytic anemia in response to a number of causes. ... Thalassemia (American English) or thalassaemia (British English) is a recessive trait inherited disease of the red blood cells. ... Sickle-cell disease is a group of genetic disorders caused by sickle hemoglobin (Hgb S or Hb S). ... Sickle cell trait describes the way a person can inherit some of the genes of sickle cell disease, but not develop symptoms. ... Hereditary spherocytosis is a genetic disorder of the red blood cells that makes them prone to hemolysis. ... Hereditary elliptocytosis is a blood disorder in which 50-90% of the red blood cells consist of rod forms and elliptocytes (that is, elliptical erythrocytes); often associated with a hemolytic anemia. ... Hereditary stomatocytosis describes a number of inherited autosomal dominant human conditions which affect the red blood cell, in which the membrane or outer coating of the cell leaks sodium and potassium ions. ... Warm Autoimmune Hemolytic Anemia (warm AIHA) is the most common of the autoimmune hemolytic diseases. ... In medicine, Hemolytic-uremic syndrome (or haemolytic-uraemic syndrome, abbreviated HUS) is a disease characterised by microangiopathic hemolytic anemia, acute renal failure and a low platelet count (thrombocytopenia). ... In medicine (hematology) microangiopathic hemolytic anemia (MAHA) is a subgroup of hemolytic anemia (anemia, loss of red blood cells through destruction) caused by factors in the small blood vessels. ... Paroxysmal nocturnal hemoglobinuria (PNH) is a rare acquired life-threatening disease of the blood characterised by hemolytic anemia, thrombosis and red urine due to breakdown of red blood cells. ... Aplastic anemia is a condition where bone marrow does not produce sufficient new cells to replenish blood cells. ... Acquired pure red cell aplasia (or PRCA) refers to a type of anemia affecting the precursors to red blood cells but not to white blood cells. ... Fanconi anemia (FA) is a genetic disease that affects children and adults from all ethnic backgrounds. ... Haemochromatosis, also spelled hemochromatosis, is a hereditary disease characterized by improper processing by the body of dietary iron which causes iron to accumulate in a number of body tissues, eventually causing organ dysfunction. ... Coagulation is a complex process by which blood forms solid clots. ... A 250 ml bag of newly collected platelets. ... This page is a candidate to be moved to Wiktionary. ... Disseminated intravascular coagulation (DIC) is a pathological process in the body where the blood starts to coagulate throughout the whole body. ... This article does not cite any references or sources. ... Haemophilia A (also spelt Hemophilia A or Hæmophilia A) is a blood clotting disorder caused by a mutation of the factor VIII gene, leading to a deficiency in Factor VIII. It is the most common hemophilia. ... Haemophilia B (also spelled Hemophilia B or Hæmophilia B) is a blood clotting disorder caused by a mutation of the Factor IX gene. ... A mild form of hemophilia that mainly occurs in Jews of Ashkenazi descent. ... Von Willebrands disease (vWD) is the most common hereditary coagulation abnormality described in humans. ... Purple discolorations on the skin caused by bleeding underneath the skin. ... In medicine (rheumatology and pediatrics) Henoch-Schönlein purpura (HSP, also known as allergic purpura) is a systemic vasculitis characterized by prominent tissue deposition of IgA-containing immune complexes, especially in the skin and kidney. ... Idiopathic thrombocytopenic purpura (ITP) is the condition of having a low platelet count (thrombocytopenia) of no known cause (idiopathic). ... Thrombotic thrombocytopenic purpura (TTP or Moschcowitz disease) is a rare disorder of the blood coagulation system that in most cases arises from the deficiency or inhibition of the enzyme ADAMTS13, which is responsible for cleaving large multimers of von Willebrand factor. ... Bernard-Soulier syndrome (BSS, named after Jean Bernard and Jean Pierre Soulier) is a rare congenital bleeding disorder characterized by thrombocytopenia and large platelets and was first described in 1948. ... Glanzmanns thrombasthenia is an extremely rare, autosomal recessive disorder of the blood, in which the platelets lack GPIIb/IIIa. ... Grey platelet syndrome is a rare condition caused by a reduction or absence of the platelet alpha-granules in blood platelet, or of the proteins contained in these granules. ... Though histiocytosis can refer to any of several specific diseases, the term is generally used to refer to a rare blood disease that is caused by an excess of white blood cells called histiocytes. ... Acute monocytic leukemia (AMoL, or AML-M5) is considered a type of acute myeloid leukemia. ... Malignant histiocytosis is a hereditary disease found in the Bernese Mountain Dog characterized by histiocytic infiltration of the lungs and lymph nodes. ... Erdheim-Chester disease (also known as Erdheim-Chester syndrome) is a rare form of non-Langerhans-cell histiocytosis. ... This article or section is in need of attention from an expert on the subject. ... Juvenile xanthogranuloma is a form of histiocytosis, classified as non-Langerhans cell histiocytosis,[1] or more specifically, type 2.[2] ^ Nakasu S, Tsuji A, Fuse I, Hirai H. Intracranial solitary juvenile xanthogranuloma successfully treated with stereotactic radiosurgery. J Neurooncol. ... Hemophagocytic lymphohistiocytosis is a form of histiocytosis where there is an excess of both histiocytes and lymphocytes. ... // Methemoglobinemia, also known as met-Hb, is a disorder characterized by the presence of a higher than normal level of methemoglobin in the blood. ... The International Classification of Diseases for Oncology (ICD-O) is a domain specific extension of the International Statistical Classification of Diseases and Related Health Problems for tumor diseases. ... Types of epithelium This article discusses the epithelium as it relates to animal anatomy. ... Papilloma refers to a benign epithelial tumor. ... In medicine, carcinoma apanting dog named rufis It is malignant by definition: carcinomas invade surrounding tissues and organs, and may spread to lymph nodes and distal sites (metastasis). ... Small cell carcinoma is a type of carcinoma usually associated with the lung, though it can be associated with other topographies, such as in cervical cancer. ... Biopsy of a highly differentiated squamous cell carcinoma of the mouth. ... Basal cell carcinoma (BCC) is the most common skin cancer. ... An adenoma is a collection of growths (-oma) of glandular origin. ... Adenocarcinoma is a form of carcinoma that originates in glandular tissue. ... Linitis plastica is seen in diffuse gastric carcinoma. ... An insulinoma is a tumour of the pancreas derived from the beta cells which while retaining the ability to synthesize and secrete insulin is autonomous of the normal feedback mechanisms. ... A glucagonoma is a rare tumor of the alpha cells of the pancreas that results in up to a 1000-fold overproduction of the hormone glucagon. ... In humans, gastrin is a hormone that stimulates secretion of gastric acid by the stomach. ... A VIPoma is an endocrine tumor, usually originating in the pancreas, which produces a vasoactive intestinal peptide and is believed to cause profound cardiovascular and electrolyte changes with vasodilatory hypotension, watery diarrhea, hypokalemia, and dehydration. ... // [edit] Introduction Cholangiocarcinoma is an adenocarcinoma of the biliary duct system. ... Hepatocellular carcinoma (HCC, also called hepatoma) is a primary malignancy (cancer) of the liver. ... Adenoid cystic cancer (AdCC) is a very rare type of cancer that can exist in many different body sites. ... A prolactinoma is a benign tumor (adenoma) of the pituitary gland that produces a hormone called prolactin. ... An oncocytoma is a tumor made up of oncocytes, which are a special kind of cells. ... A Hurthle cell is a large cell often associated with follicular thyroid cancer. ... Renal cell carcinoma, also known by a gurnistical tumor, is the most common form of kidney cancer arising from the renal tubule. ... Multiple endocrine neoplasia (MEN) (or multiple endocrine adenomas, or multiple endocrine adenomatosis -- MEA) consists of three syndromes featuring tumors of endocrine glands, each with its own characteristic pattern. ... Endometrioid tumors are part of the surface epithelial tumor group of ovarian neoplasms (10-20% of which are the endometrioid type). ... Cystadenoma (or cystoma) refers to a type of cystic adenoma. ... Pseudomyxoma peritonei (PMP, sometimes informally known as jelly belly) is a very rare form of tumor, commonly known as jelly belly due to its production of mucus in the abdominal cavity. ... Acinic cell carcinoma is a tumor most commonly found in the parotid gland. ... Warthins tumor is a type of benign tumor of the salivary glands. ... Sex cord-stromal tumours are a group of sex cord ovarian neoplasms which accounts for 8% of all reported cases. ... Thecomas are benign ovarian neoplasms that are sex cord-stromal tumours. ... Granulosa cell tumours are part of the sex cord-stromal tumour group of ovarian neoplasms. ... The arrhenoblastoma is a rare ovarian stromal neoplasm that secretes testosterone. ... Sertoli-Leydig cell tumours are part of the sex cord-stromal tumour group of ovarian neoplasms. ... A paraganglioma is a rare neoplasm that can be found in the head and neck region and other less common areas. ... A pheochromocytoma (also phaeochromocytoma, English spelling) is a tumor of the medulla of the adrenal glands originating in the chromaffin cells, which secretes excessive amounts of catecholamines, usually epinephrine and norepinephrine. ... A glomus tumor is a rare neoplasm usually found in the skin of the extremities. ... Nodular melanoma (NM) is the most aggressive form of melanoma. ... A dysplastic nevus, (or naevus; pl. ... Lentigo maligna is a melanoma in situ, meaning it consists of malignant cells but does not show invasive growth. ... Superficial spreading melanoma (SSM) is the most common form of cutaneous melanoma in Caucasians. ... Connective tissue is one of the four types of tissue in traditional classifications (the others being epithelial, muscle, and nervous tissue. ... Malignant (cancerous) tumors that develop in soft tissue are called sarcomas, a term that comes from a Greek word meaning fleshy growth. ... Melanoma is a malignant tumor of melanocytes which are found predominantly in skin but also in the bowel and the eye (see uveal melanoma). ... Soft Fibroma (fibroma molle). ... Fibrosarcoma (fibroblastic sarcoma) is a malignant tumor derived from fibrous connective tissue and characterized by immature proliferating fibroblasts or undifferentiated anaplastic spindle cells. ... A lipoma is a common, benign tumor composed of fatty tissue. ... Liposarcoma is a malignant tumor that arises in fat cells in deep soft tissue, such as that inside the thigh or in the retroperitoneum. ... Multiple angiomyolipoma from a contrast-enhanced CT of the abdomen of a patient with TSC. Angiomyolipoma is a benign renal lesion. ... A leiomyoma (plural is leiomyomata) is a benign smooth muscle neoplasm that is not premalignant. ... Leiomyosarcoma is a type of sarcoma which is a neoplasm of smooth muscle. ... A rhabdomyoma is a benign tumor of muscle. ... A rhabdomyosarcoma is a type of cancer, specifically a sarcoma (cancer of connective tissues), in which the cancer cells are thought to arise from skeletal muscle progenitors. ... Pleomorphic adenoma is the most common type of parotid gland tumor. ... Wilms tumor is a neoplasm of the kidneys that typically occurs in children. ... There are very few or no other articles that link to this one. ... Brenner tumours (aka Transitional cell tumours) are part of the surface epithelial-stromal tumour group of ovarian neoplasms. ... Fibroadenoma of the breast is a benign tumor characterized by proliferation of both glandular and stromal elements. ... This article needs to be wikified. ... // Introduction A synovial sarcoma is one of the rarer types of soft-tissue sarcomas. ... Germ cell tumours are ovarian neoplasms derived from germ cells. ... Germinomas are neoplasia (commonly referred to as cancers or tumors) which most closely resemble germ line cells. ... Dysgerminomas are one of the germ cell tumour ovarian neoplasms. ... Testicular cancer is a type of cancer that develops in the testicles, a part of the male reproductive system. ... The embryonal carcinoma is one of the four types of testicular cancers, which also include the seminoma, teratoma, and choriocarcinoma. ... Endodermal sinus tumor, formerly often known as yolk sac tumor, is a member of the germ cell tumor group of neoplasms. ... Yolk sac tumours are members of the germ cell tumour group of ovarian neoplasms. ... Look up teratoma in Wiktionary, the free dictionary. ... A parasitic twin is the result of a situation related to the process that results in teratomas, vanishing twin, and conjoined twins – two unique embryos begin developing in utero, but something goes wrong. ... A dermoid cyst is a teratoma that contains developmentally mature skin, with hair follicles and sweat glands, sometimes luxuriant clumps of long hair, and often pockets of sebum, blood, or fat. ... A teratoma is a type of tumor that derives from pluripotent germ cells. ... Choriocarcinoma is a rare cancer of the placenta, curable by chemotherapy. ... Hemangioma is a benign tumor, usually in the shape of a ball, but sometimes a flatter mat, formed by a collection of excess blood vessels in an area. ... Angiomas are benign tumors that are made up of small blood vessels. ... Angiosarcoma is a rare, malignant tumor consisting of endothelial and fibroblastic tissue that proliferates and eventually surrounds vascular channels. ... Blue rubber bleb nevus syndrome (or BRBNS, or blue rubber bleb syndrome, or blue rubber-bleb nevus, or Bean syndrome) is a rare disorder that consists mainly of abnormal blood vessels affecting the gastrointestinal tract. ... Hemangioendothelioma is used to describe a group of vascular neoplasms that may be considered benign or malignant in their activity. ... A hemangiopericytoma (HPC) is a type of soft tissue sarcoma that originates in the pericytes in the walls of capillaries. ... Lymphangioma is a uncommon benign slow-growing congenital tumor derived of the lymphatic vessels. ... An osteoma is a new piece of bone growing on another piece, typically the skull. ... Osteosarcoma is the most common type of malignant bone cancer, accounting for 35% of primary bone malignancies. ... A chondroma is a benign cartilaginous tumor, which is encapsulated with a lobular growing pattern. ... A chondrosarcoma is a cancer of the cartilage. ... Giant cell tumor of the bone (also called giant cell myeloma or osteoclastoma) is a relatively uncommon tumor. ... X-Ray of a child with Ewings sarcoma of the tibia Ewings sarcoma is the common name for primitive neuroectodermal tumor. ... Cementoblastoma, or benign cementoblastoma, is a relatively uncommon benign neoplasm of the cementum of the teeth. ... The adenomatoid odontogenic tumor is an odontogenic tumor arising from the enamel organ or dental lamina. ... Ameloblastoma is a rare, benign tumor of odontogenic epithelium (the cells that create the enamel, or outside portion, of the teeth during development) often appearing in the upper or lower jaw. ... Craniopharyngioma is a type of tumor that comprises 9% of all pediatric brain tumors and usually occur in children between 5 and 10 years of age. ... Nervous tissue is the fourth major class of vertebrate tissue. ... A glioma is a type of primary central nervous system (CNS) tumor that arises from glial cells. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Oligoastrocytomas are a subset of brain tumor that present with an appearance of mixed glial cell origin, astrocytoma and oligodendroglioma. ... Ependymoma are tumors arising from the inner lining of the cerebral ventricles (= intracranial) and the remnants of the central canal in the spinal cord. ... Astrocytomas are primary intracranial tumors derived from astrocytes cells of the brain. ... It occurs predominantly in children and involves the midline, basal and posterior fossa structures. ... Image 1a. ... Dysembryoplastic neuroepithelial tumour, commonly abbreviated DNT, is a type of brain tumour that arises from the oligodendrocyte, a type of brain cell. ... Oligodendrogliomas are a type of glioma that are believed to originate from the oligodendrocytes of the brain or from a glial precursor cell. ... It has been suggested that this article or section be merged into brain tumor. ... Neuroblastoma is the most common extracranial solid cancer in infancy and childhood. ... // Retinoblastoma is a cancer of the retina. ... Atypical Teratoid Rhabdoid Tumor (AT/RT) AT/RT is a highly malignant childhood brain tumor first described in 1978. ... Meningiomas are tumors arising from the outer part of the arachnoid mater in the meninges of the brain or the spinal cord. ... Neurofibromas are moderately firm, benign, encapsulated, slow-growing tumors of the nervous system arising from the supporting cells (Schwann cells) of peripheral nerves. ... Neurofibromatosis is an autosomal dominant genetic disorder. ... Schwannomas, also referred to as Neurilomas, are slow-growing central nervous system tumours arising from the supporting cells of peripheral nerves, which include cranial and spinal nerve roots). ... Neurinoma is a tumor, usually benign but sometimes cancerous, which forms on the myelinous sheath of a nerve. ... Acoustic neuroma (or Vestibular Schwannoma) is a benign primary intracranial tumor of the myelin forming cells called Schwann cells (Schwannoma) of the 8th cranial nerve --- also known as the acoustic nerve, (or more properly the vestibulocochlear nerve). ... A neuroma is a tumor growth of nerve cells and fibres. ... Although hematological malignancies are a form of cancer, they are generally treated by specialists in hematology, although in many hospitals oncology specialists also manage these diseases. ... Leukemia or leukaemia (see spelling differences) is a cancer of the blood or bone marrow and is characterized by an abnormal proliferation (production by multiplication) of blood cells, usually white blood cells (leukocytes). ... This article is about lymphoma in humans. ... Hodgkins lymphoma, also known as Hodgkins disease, is a type of lymphoma first described by Thomas Hodgkin in 1832. ... Non-Hodgkin lymphoma is a cancer arising from lymphocytes, a type of white blood cells. ... B-cell lymphoma is a type of non-Hodgkin lymphoma affecting B cells. ... Small cell lymphoma (or small lymphocytic lymphoma) is a type of follicular B-cell lymphoma. ... Primary effusion lymphoma (PEL) is a malignancy of B cells that is caused by Kaposis sarcoma-associated herpesvirus (KSHV). ... Burkitts lymphoma (or Burkitts tumor, or Malignant lymphoma, Burkitts type) is a cancer of the lymphatic system (in particular, B lymphocytes). ... Splenic marginal zone lymphoma is an indolent lymphoma recognized by the World Health Organization. ... MALT lymphoma is a form of non-Hodgkin lymphoma (NHL) involving the mucosa-associated lymphoid tissue, usually of the stomach. ... Follicular lymphoma (FL) is the most common of the indolent non-Hodgkins lymphomas. ... T-cell lymphoma (in contrast to B-cell lymphoma) can refer to: Adult T-cell leukemia Cutaneous T Cell lymphoma Category: ... Cutaneous T-Cell lymphoma (CTCL) is a class of non-Hodgkins lymphoma, which is a type of cancer of the immune system. ... Mycosis Fungoides, also known as Alibert-Bazin syndrome or granuloma fungoides, is a rare form of non-Hodgkins lymphoma. ... Sézarys disease (or Sézary syndrome) is a type of cutaneous lymphoma characterized by Albert Sézary. ... Angioimmunoblastic T-cell lymphoma (AILT) is a mature T-cell lymphoma with systemic characterized by a polymorphous lymph node infiltrate showing a marked increase in follicular dendritic cells (FDCs) and high endothelial venules (HEVs) and systemic involvement. ... Anaplastic large cell lymphoma (ALCL) is a type of non_Hodgkin lymphoma that features in the World Health Organisation (WHO) classification of lymphomas. ... // Hepatosplenic γδ T-cell lymphoma[1] 9716/3[1] Hepatosplenic T-cell lymphoma is a systemic neoplasm comprised of medium-sized cytotoxic T-cells that show a significant sinusoidal infiltration in the liver, spleen, and bone marrow. ... Plasma cells (also called plasma B cells or plasmocytes) are cells of the immune system that secrete large amounts of antibodies. ... Plasmacytoma refers to a malignant monoclonal plasma cell tumor growing either in bone or soft tissue. ... Multiple myeloma (also known as MM, myeloma, plasma cell myeloma, or as Kahlers disease after Otto Kahler) is a type of cancer of plasma cells which are immune system cells in bone marrow that produce antibodies. ... Mast cells A mast cell (or mastocyte) is a resident cell of areolar connective tissue (loose connective tissue) that contains many granules rich in histamine and heparin. ... This article or section is in need of attention from an expert on the subject. ... A mast cell tumor is a type of tumor consisting of mast cells that is found in many species of animals. ... Mast-cell sarcoma is an aggressive[1] form of sarcoma of the mast cells. ... Waldenström macroglobulinemia (WM) is cancer involving a subtype of white blood cells called lymphocytes. ... Lymphomatoid granulomatosis is a neoplastic disease. ... Lymphoid leukemia is a type of leukemia affecting lymphoid tissue. ... Acute lymphoblastic leukemia (ALL), also known as acute lymphocytic leukemia, is a form of leukemia, characterised by the overproduction and continuous multiplication of malignant and immature white blood cells (also known as lymphoblasts) in the bone marrow. ... Chronic lymphocytic leukemia (or chronic lymphoid leukemia), known for short as CLL, is a type of leukemia in which too many lymphocytes are produced. ... T-Cell Leukemia, or T-Cell ALL, Acute lymphocytic leukemiais a cancer of the lymphocyte-forming cells called lymphoblasts. ... Human T cell leukemia/lymphotropic virus type 1 (HTLV-1) is believed to be the cause of several diseases, including adult T cell leukemia/lymphoma (ATLL), a rare cancer of the immune systems own T-cells. ... T-cell-prolymphocytic leukemia (T-PLL) is a mature T-cell leukemia with aggressive behavior and predilection for blood, bone marrow, lymph nodes, liver, spleen, and skin involvement. ... T-cell acute lymphoblastic leukemia (T-ALL) is a type of acute lymphoblastic leukemia (ALL), a cancer of the lymphocyte-forming cells called lymphoblasts. ... B-cell leukemia describes several different types of lymphoid leukemia which affect B cells. ... Myeloid leukaemia can refer to: Acute myelogenous leukemia Chronic myelogenous leukemia Category: Disambiguation ... Erythroleukemia (or acute Di Guglielmo syndrome) is a rare form of acute myeloid leukemia where the myeloproliferation is of erythrocyte precursors. ... Myeloid leukaemia can refer to: Acute myelogenous leukemia Chronic myelogenous leukemia Category: Disambiguation ... Acute myeloid leukemia (AML), which is also known as acute myelogenous leukemia, is a cancer of the myeloid line of white blood cells, characterized by the rapid proliferation of abnormal cells which accumulate in the bone marrow and interfere with the production of normal blood cells. ... Chronic myelogenous leukemia (CML) is a form of chronic leukemia characterized by increased and unregulated clonal production of predominantly myeloid cells in the bone marrow. ... Acute myelogenous leukemia (AML), also known as acute myeloid leukemia, is a cancer of the myeloid line of white blood cells. ... Philadelphia chromosome or Philadelphia translocation is a specific genetic, chromosomal abnormality that is associated with chronic myelogenous leukemia (CML) and involves an exchange of material between chromosomes 9 and 22. ... Monocytic leukemia is a type of leukemia characterized by a dominance of monocytes in the marrow. ... Acute monocytic leukemia (AMoL, or AML-M5) is considered a type of acute myeloid leukemia. ... A chloroma, or granulocytic sarcoma, or most appropriately, extramedullary myeloid tumor, is a solid tumor composed of immature malignant white blood cells called myeloblasts. ... Hairy cell leukemia is a B cell neoplasm. ... // Aggressive NK-cell leukemia/lymphoma, large granular lymphocyte leukemia, NK-cell type[1] 9948/3[1] Aggressive NK-cell leukemia is a disease with an aggressive, systemic proliferation of natural killer cells (NK cells) and a rapidly declining clinical course. ... The myeloproliferative diseases are a group of diseases of the bone marrow where excess cells are produced. ... Polycythemia is a condition in which there is a net increase in the total circulating erythrocyte (red blood cell) mass of the body. ... Essential thrombocytosis (ET, essential thrombocythemia) is a rare chronic blood disorder characterized by the overproduction of platelets by megakaryocytes (the precursor cell for platelets) in the absence of an alternative cause. ... Chronic neutrophilic leukemia (CNL) is a rare myeloproliferative disorder that features a persistent neutrophilia in peripheral blood, myeloid hyperplasia in bone marrow, hepatosplenomegaly, and the absence of the Philadelphia chromosome or a BCR/ABL fusion gene. ... The hypereosinophilic syndrome is a disease process characterized by a persistently elevated eosinophil count (≥ 1500 eosinophils/mm³) in the blood for at least six months without any recognizable cause after a careful workup, with evidence of involvement of either the heart, nervous system, or bone marrow. ... Post-transplant lymphoproliferative disorder (PTLD) is the name given to a group of B cell lymphomas occurring in immunosuppressed patients following organ transplant. ...