Primary extraosseous cemento-ossifying fibroma of the auricle

Background. A mass of the auricle is uncommon. An enlarging lesion may be t he result of a reactive process, or a benign or malignant neoplasm. The lit erature is reviewed, and a case of extraosseous cemento-ossifying fibroma o f the auricle is presented. Methods. A 22-year-old white man presented with a 3-month history of an enl arging 2 cm mass in the right concha cavum. An incisional biopsy demonstrat ed cemento-ossifying fibroma. The lesion was resected en bloc, and the pati ent did well. There is no evidence of recurrence. Results. Pathological examination of the excised mass revealed a well-circu mscribed but unencapsulated spindle cell lesion with foci of osteoid and ce mentum deposition. It did not involve the auricular cartilage, and there wa s no connection with the overlying epidermis. Conclusions. This is a case report of an extraosseous cemento-ossifying fib roma of the auricle. This benign tumor should be completely excised because local recurrence may otherwise result. (C) 7 999 John Wiley & Sons, Inc. H ead Neck 21: 578-581, 1999.