These 3 ultrasound images show a typical large Baker cyst in the popliteal fossa. The cyst measuring more than 5 x 2.5 cms. is the result of an extrusion of the synovial membrane from the knee joint via an opening in the postero-medial aspect of the joint. The result is a synovial membrane lined cyst in the popliteal fossa, just behind the knee joint.
Over a period of time the fluid within the Baker cyst is thick, almost gelatinous, making aspiration difficult. See: http://www.ultrasound-images.com/musculoskeletal.htm
Visit this page : Musculoskeletal ultrasound for a pictorial review of MSK sonography, cases/ and images. The various topics on this page include:
Cruciate liagment tear,
Epidermoid cyst
Transient synovitis
Olecranon bursitis
and inguinal hernia.
Also, I have added images / cases of hemangioma of the abdominal wall,
abductor hallucis hypertrophy
and fractures of the rib and the forearm bones, as well a rare case of intracranial dermoid.
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