Demonstration of a geode by magnetic resonance imaging: a new light on the cause of juxta-articular bone cysts in rheumatoid arthritis.

Moore, E A; Jacoby, R K; Ellis, R E; Fry, M E; Pittard, S; Vennart, W · Ann Rheum Dis · 1990

case_report · Level V

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Abstract

The magnetic resonance imaging (MRI) features of a rheumatoid arthritic geode are presented. Development of such a cyst from before x ray diagnosis to its coalescence with the wrist joint is described. The evidence suggests that these juxta-articular cysts are not merely an intrusion of the synovial cavity into the bone marrow but start as isolated structures beneath the subchondral bone.

Medical subject headings