Huge Chondroid Syringoma of the Forehead: A case report

ABSTRACT

Chondroid syringoma also known as cutaneous mixed tumor of salivary gland type, is a relatively uncommon adnexal tumor of sweat gland origin. Most of these tumors are benign, although occasional malignant variants have been documented. Commonly, these tumors occur in the head and neck region but any part of the body may be affected. Their usual size is between 0.5-3.0cm. We treated a 47-years-old man was seen for tumor first noticed about 17 years ago on the forehead. This mass had been increasing in size slowly, An 8 x 8 x 9 cm size mass with surrounding subcutaneous tissue and overlying skin was excised from frontalis muscle fascia. On frozen biopsy, there was no malignant change. The wound was covered by skin graft. Microscopically, the mass is composed of glands or tubules, adipose tissue and hyalinized or chondromyxoid stroma(PAS- , Alcian blue +). Several areas show adenoic cystic carcinoma pattern, suspicous for early malignant change. No evidence of local recurrence has surfaced after 6 months of operation.