抄録
Inverted papillomas are benign sinonasal tumors, however they are often associated with carcinomas mostly squamous cell carcinoma. We present a rare case of an inverted papilloma associated with an adenocarcinoma. A 57-year-old woman was seen for a left nasal obstruction due to a sinonasal tumor which a biopsy revealed as an inverted papilloma. Endoscopic sinus surgery (ESS) was performed, which revealed histologically that it was in fact adenocarcinoma in situ. In the 4-month follow-up after the procedure, early recurrence was detected and revision ESS was performed. The postoperative histology revealed that it was an inverted papilloma with no malignancy. Thereafter, in a 12-month follow-up, no recurrence has been seen.
