Aspiration Biopsy Cytology of Tumoral Calcinosis A Case Report

Background Tumoral calcinosis (TC) is a rare inherited disorder leading to the formation of periarticular calcified masses. Aspiration cytology of this condition has been rarely reported. We describe the aspiration cytology finding of a recent Case of TC and discuss possible differential diagnoses. Case This is a case of a 35-year-old Affrican-American man who presented with a right posterior chest/shoulder mass. The patient had a history of resection of right shoulder (1990) and left neck (2007) masses histologically diagnosed as TC. He recently also bad a right-side neck mass that, surprisingly, was found to be extraabdominal desmoid fibromatosis on histologic examination. Conclusion Inherited idiopathic TC is a rare disease commonly presenting as a periarticular mass, which may be subjected to aspiration biopsy. Awareness of this distinct entity and the aspiration cytologic features helps avoid incorrect interpretation. (Acta Cytol 2009;53:323-326)