Intraoral Sebaceous Carcinoma: Case Report of a Rare Tumor Emphasizing the Histopathological Differential Diagnosis

Left Buttock Sebaceus Carcinoma: A Case Report and Review of the Literature

Sebaceous carcinoma is a rare, aggressive, malignant tumour, characterized by a tendency for local recurrence and distant metastases. This case report presents a rare form of sebaceous carcinoma in an 86 years-old female. Clinical examination revealed a 12cm nodular tumour, yellow-brown in colour, located on the left buttock of the patient. Ultrasound examination indicated that no ganglions were affected; dermatological examination suggested that the tumour had an unpredictable evolution. Treatment was surgical with a 2cm wide excision, followed by reconstruction with a VY skin flap, from the left side of the buttock. Histological exam supported the diagnosis of sebaceous carcinoma; the tumour was removed with a safety margin of healthy tissue. Sebaceous carcinoma is a malignant tumour with unpredictable evolution. Diagnosis is based on histological examination. Treatment of choice consists in complete wide surgical excision.

Sebaceous carcinoma of the axilla

Sebaceous carcinoma is a rare cutaneous malignant neoplasm with an estimated incidence rate of approximately 1–2 per 1 000 000 per year. It rarely presents as an extra-ocular type and it affects patients in between the sixth and eighth decades of life. This is a case of a 31-year-old male with a 10-year history of a right axillary mass with an incisional biopsy of a sebaceous carcinoma. The mass was 10 × 6 cm in largest diameter, erythematous, non-tender and irregularly shaped. The patient underwent wide excision of the right axillary mass with negative margins confirmed by frozen section under general anesthesia. A parascapular fasciocutaneous flap was done in order to provide coverage for the defect. The patient was then discharged improved on the fourth postoperative day. Although there has been no established clinical protocol for the staging, medical and surgical management for extra-ocular sebaceous carcinoma, early diagnosis accompanied with the proper surgical intervention, such as oncologic wide excision with negative margins, were both adequate and paramount to the diagnosis, course and treatment of this patient, given its rarity.