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A Baker's cyst, otherwise known as a popliteal cyst, is a benign swelling found behind the knee joint. It is named after the surgeon who first described it, Dr. William Morrant Baker (1839-1896). The following codes are used with International Statistical Classification of Diseases and Related Health Problems. ...
// M00-M99 - Diseases of the musculoskeletal system and connective tissue (M00-M25) Arthropathies (M00-M03) Infectious arthropathies (M00) Pyogenic arthritis (M01) Direct infections of joint in infectious and parasitic diseases classified elsewhere (M02) Reactive arthropathies (M023) Reiters disease (M03) Postinfective and reactive arthropathies in diseases classified elsewhere (M05-M14...
The following is a list of codes for International Statistical Classification of Diseases and Related Health Problems. ...
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. ...
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Popliteal refers to anatomical structures locatedin the back of the knee: popliteal artery popliteal vein popliteal fossa popliteal nerves ...
This is an article about cysts in the body. ...
An x-ray of a human knee In human anatomy, the knee is the leg joint connecting the femur and the tibia. ...
A joint (articulation) is the location at which two bones make contact (articulate). ...
A typical modern surgical operation For other uses, see Surgery (disambiguation). ...
Causes
In adults, Baker's cysts usually arise from arthritic knee joints. Almost any form of knee arthritis can cause it. Baker's cysts in children do not point to underlying joint disease. Arthritis (from Greek arthro-, joint + -itis, inflammation) is a group of conditions that affect the health of the bone joints in the body. ...
The synovial sack of the knee joint can, under certain circumstances, produce a posterior bulge, into the popliteal space, the space behind the knee. When this bulge becomes large enough, it becomes palpable and cystic. Most Baker's cysts maintain this direct communication with the synovial cavity of the knee, but sometimes, the new cyst pinches off. A Baker's cyst can rupture and produce acute pain behind the knee and in the calf and swelling of the calf muscles. Synovium means with egg, because the (synovial) fluid in joints that have a cavity between the bearing surfaces is like egg-white. ...
Diagnosis Diagnosis is by examination, and, if needed, aspiration of synovial fluid from the cyst. Baker's cysts are most easily felt with the knee partially flexed. They are easier to see from behind with the patient standing with knees fully extended.
A burst cyst can cause calf pain and swelling that mimic thrombophlebitis, in which case ultrasonography can be used to rule out DVT. Although an infrequent occurrence, a Baker's cyst can compress vascular structures and cause leg edema and true thrombophlebitis. Thrombophlebitis is phlebitis (vein inflammation) related to a blood clot or thrombus. ...
Medical ultrasonography (sonography) is an ultrasound-based diagnostic imaging technique used to visualize internal organs, their size, structure and any pathological lesions. ...
Treatment Baker's cysts usually require no treatment unless they are symptomatic. Often rest and leg elevation are all that is needed. If necessary, the cyst can be aspirated to reduce its size, then injected with a corticosteroid to reduce inflammation. Surgical excision is reserved for cysts that cause a great amount of discomfort to the patient. A ruptured cyst is treated with rest, leg elevation, and injection of a corticosteroid into the knee. In physiology, corticosteroids are a class of steroid hormones that are produced in the adrenal cortex. ...
Baker's cysts in children nearly always disappear with time, and rarely require excision.
External links Who Named It is a Norwegian database of several thousand eponymous medical signs and the doctors associated with their identification. ...
GPnotebook is a British medical database for general practitioners (GPs. ...
References - Hellmann, DB (2005). “Chapter 20: Arthritis & Musculoskeletal Disorders”, Tierney LM, Jr., McPhee SJ, Papadakis MA Current Medical Diagnosis & Treatment, 44th Edition, Philadelphia, PA: F. A. Davis Company. ISBN 0071453237.
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