Extraskeletal calcified synoviobursitis.

Abstract

A large synoviobursitis calcified mass is not commonly seen in the digits of the foot. After injury, effusion subcutaneous hemorrhage and synovitis may occur with a fluctuating edema over the inflamed parts. In the later stages, a nodular type of increase in soft tissue density within the confines of the joint capsule may be the result of tumor formation. The mass may develop beyond capsular tissue and may resemble a synoviobursitis calcified mass. This must be considered in a differential diagnosis to rule out any malignant manifestation.