Sinonasal undifferentiated carcinoma originating from inverted papilloma: A case report.

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Sinonasal undifferentiated carcinoma originating from inverted papilloma: A case report.

Medicine (Baltimore). 2017 Nov;96(45):e8584

Authors: Kim JS, Hong KH, Jang KY, Song JH

Abstract
RATIONALE: Sinonasal inverted papilloma (IP) is a locally aggressive tumor found in the schneiderian membrane, lining the nasal cavity and paranasal sinuses.
PATIENT CONCERNS: We report a case of a 63-year-old woman with undifferentiated carcinoma (UC) arising in an IP in the left maxillary sinus.
DIAGNOSES: The preoperative diagnosis was IP of the maxillary sinus.
INTERVENTIONS: We performed endoscopic medial maxillectomy to remove the remnant mass in the left maxillary sinus.
OUTCOMES: Histological examination of the specimen revealed typical area of IP and sinonasal UC.
LESSONS: Clinicians should consider sinonasal UC in the differential diagnosis of malignancy arising in the sinonasal IP.

PMID: 29137081 [PubMed - in process]

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