PT - JOURNAL ARTICLE AU - Karine Tawagi AU - Rita Akaraz-Avedissian AU - Irina Burman-Solovyeva TI - Recurrent epistaxis leading to diagnosis of primary sinonasal melanoma AID - 10.1136/bcr-2017-219832 DP - 2018 Feb 16 TA - BMJ Case Reports PG - bcr-2017-219832 VI - 2018 4099 - http://casereports.bmj.com/content/2018/bcr-2017-219832.short 4100 - http://casereports.bmj.com/content/2018/bcr-2017-219832.full AB - A 48-year-old man presented to urgent care with recurrent epistaxis over 6 months. Initially, nosebleeds were controlled with packing or cautery. Ultimately, he was referred to ear, nose and throat department and underwent nasal endoscopy which revealed polypoid tissue. A biopsy of the polyp showed non-specific inflammation with no evidence of malignancy. Follow-up maxillofacial CT revealed a large mass lesion in the right maxillary sinus, right nasal fossa, much of the ethmoids and right sphenoid, with destruction of adjacent bony structures. MRI revealed a mass in the right nasal cavity with extension into the ethmoid and anterior sphenoid sinus, anterior cranial fossa and medial orbits. Staging CT discovered metastatic disease in the adrenal glands and lymphadenopathy in the neck. The patient underwent endoscopic sinus surgery with debulking and tissue diagnosis of malignant melanoma. He completed radiation therapy to sinus and was subsequently enrolled in a clinical trial. Most recent imaging revealed complete metabolic response on positron emission tomography.