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 findings of a recent case of TC and discuss possible differential diagnoses.


METHODS
This is a case of a 35-year-old African-American man who presented with a right posterior chest/shoulder mass. The patient had a history of resection of right shoulder (1996) and left neck (2007) masses histologically diagnosed as TC. He recently also had a right-side neck mass that, surprisingly, was found to be extraabdominal desmoid fibromatosis on histologic examination.


CONCLUSIONS
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.
Saleh
Husain A
HA
Department of Pathology, Sinai-Grace Hospital/Detroit Medical Center, Wayne State University, Detroit, Michigan 48302, USA. hsaleh@med.wayne.edu
Baker
Herbert
H
D000328:Adult; D044963:Biopsy, Fine-Needle; D002114:Calcinosis / Q000150:complications / Q000473:pathology*; D018222:Desmoid Tumors / Q000150:complications / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D013902:Radiography, Thoracic; D012785:Shoulder Joint; D013909:Thorax