Synovial Sarcoma of the Anterior Chest Wall: A Case Report

Abstract

Synovial sarcoma is a malignant soft tissue tumor that usually involves the extremities, particularly near the knees; a synovial sarcoma originating in the chest wall is extremely rare. We describe a 26-year-old woman diagnosed with a synovial sarcoma originating in the chest wall, based on CT and MRI findings. Contrast-enhanced CT images revealed a small, well-defined enhancing mass with calcification, in the subpleural area. This lesion was initially diagnosed as a benign tumor; however, the patient developed sudden severe pain with spontaneous bleeding and hemothorax, suggesting the possibility of malignancy. MRI revealed a multilobulated mass with a fluid-fluid level, which characterizes a synovial sarcoma.

Chest Wall Synovial Sarcoma: A Unique Encounter at the Breast Base

“…MRI exhibits heterogeneous signals on T1 and T2 weighted images and heterogeneous post-contrast enhancement. Internal hemorrhage and sedimentary hematoma can result in the appearance of round areas within the fluid-fluid level inside the lesion, forming a bowl-of-fruit appearance [ 9 ].…”