Meghan E Rowe1,2, Azita S Khorsandi3, Grant R Urken2, Bruce M Wenig4,5. 1. Department of Otolaryngology, Mount Sinai Beth Israel, New York, New York. 2. Thyroid, Head, and Neck Cancer (THANC) Foundation, New York, New York. 3. Department of Radiology, Mount Sinai Beth Israel, New York, New York. 4. Department of Pathology, Mount Sinai Beth Israel, New York, New York. 5. Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, New York.
Abstract
BACKGROUND: Intraoral sebaceous carcinoma is a rare form of sebaceous carcinoma with only 9 published cases in the world literature to date. We present a 10th case of intraoral sebaceous carcinoma located in the anterior maxillary gingiva with metastases to the lung and subcutis and discuss 3 possible etiologies for this unique presentation. METHODS: We analyze the clinical presentation, pathology, histology, and genetic testing for a single case study and review relevant literature. RESULTS: The histologic findings of the lung tumor and surgical excisions of the tumors in the gingiva and subcutis suggest the gingiva is the primary site. There is no evidence for the genetic abnormalities consistent with Muir-Torre syndrome. CONCLUSION: The histologic findings suggest the oral cavity is the most likely site of tumor origin. This is the first case of intraoral sebaceous carcinoma reported to arise in the gingiva as well as to spread to cutaneous sites.
BACKGROUND:Intraoral sebaceous carcinoma is a rare form of sebaceous carcinoma with only 9 published cases in the world literature to date. We present a 10th case of intraoral sebaceous carcinoma located in the anterior maxillary gingiva with metastases to the lung and subcutis and discuss 3 possible etiologies for this unique presentation. METHODS: We analyze the clinical presentation, pathology, histology, and genetic testing for a single case study and review relevant literature. RESULTS: The histologic findings of the lung tumor and surgical excisions of the tumors in the gingiva and subcutis suggest the gingiva is the primary site. There is no evidence for the genetic abnormalities consistent with Muir-Torre syndrome. CONCLUSION: The histologic findings suggest the oral cavity is the most likely site of tumor origin. This is the first case of intraoral sebaceous carcinoma reported to arise in the gingiva as well as to spread to cutaneous sites.
Authors: Michele Di Cosola; Francesca Spirito; Mariateresa Ambrosino; Pasquale Somma; Andrea Santarelli; Stefania Staibano; Lorenzo Lo Muzio Journal: J Med Case Rep Date: 2022-06-18