Clear Cell Sarcoma of the Wrist: MRI Findings with Diffusion-Weighted Image and Histopathologic Correlation

Clear cell sarcoma (CCS, malignant melanoma of soft parts) is a rare neoplasm accounting for 1% of all soft tissue sarcomas (1). Young adults between the ages of 20 and 40 are most commonly involved (1). CCS is intimately associated with or in a tendon, ligament, or aponeurosis. Suggestive features of diagnosis best seen on MR imaging include a mass having components not only surrounding but within a tendon, ligament, or aponeurosis. Herein, we describe a case of CCS of the dorsum of the wrist closely abutting the tendons with MRI-histopathologic correlation including diffusionweighted imaging.