A Patient With Submerged Sinonasal Angiosarcoma After Resection of Underlying Organizing Hematoma

A 30-year-old female patient with facial pain diagnosed as organizing hematoma of maxillary sinus by biopsy and imaging studies, and subsequently tumor was resected via an endoscope-assisted midfacial degloving approach. The tumor was histopathologically confirmed as organizing hematoma. In 3-week follow-up, asymptomatic emerging mass was observed at the same site, and needed a revision endoscopic resection. On pathologic examination, a low-grade angiosarcoma was identified, not organizing hematoma. After postoperative radiotherapy, she has been a status of no evidence of disease. This report emphasizes that complete and delicate resection of sinonasal tumor should be made to prevent recurrence and submerged malignant potential. Address correspondence and reprint requests to Jung Hyun Chang, MD, PhD, Department of Otorhinolaryngology, National Health Insurance Corporation Ilsan Hospital, Goyang-si, Gyeonggi-do 10444, South Korea; E-mail: jhrhino.chang@gmail.com Received 20 July, 2017 Accepted 24 August, 2017 The authors report no conflicts of interest. © 2017 by Mutaz B. Habal, MD.

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