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. 2011 Dec;45(4):267-72.
doi: 10.2478/v10019-011-0033-4. Epub 2011 Oct 8.

Sinonasal inverted papilloma associated with squamous cell carcinoma

Jasna But-Hadzic  1 , Klemen Jenko, Mario Poljak, Bostjan J Kocjan, Nina Gale, Primoz Strojan
Affiliations

Sinonasal inverted papilloma associated with squamous cell carcinoma

Jasna But-Hadzic et al. Radiol Oncol. 2011 Dec.

Abstract

Background: The aims of the study were to review single-institution experiences with sinonasal inverted papilloma associated with squamous cell carcinoma (IP/SCC), to analyze the presence of human papillomavirus (HPV) and to evaluate the role of radiotherapy.

Patients and methods: Five patients with IP/SCC were identified in the prospective institutional databases (1995-2005) and HPV status was determined in all five tumors.

Results: Four out of five patients had T3-4 tumors; no nodal involvement was seen in any of them. Four patients had curative surgery, supplemented in three of them with radiotherapy. Debulking surgery was performed in the patient with a non-resectable tumor followed by radical radiotherapy. Tumor was controlled locally in three patients at 8, 46 and 58 months post-surgery. Local failure occurred in two patients: after endoscopic resection of a T1 tumor (the recurrent tumor was successfully salvaged with additional surgery) and in a patient with an inoperable tumor. No regional or distant metastases occurred. HPV status was determined in all five tumors and three of them were found positive for HPV type 11.

Conclusions: In operable sinonasal IP/SCC, upfront surgery and postoperative radiotherapy to the tumor bed with dose levels comparable to those used for invasive SCC are recommended. For non-resectable disease, radical radiotherapy to a dose of 66-70 Gy could be of benefit.

Keywords: human papillomavirus infection; inverted papilloma; outcome; radiotherapy; squamous cell carcinoma.

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Conflict of interest statement

Disclosure: No potential conflicts of interest were disclosed.

Figures

FIGURE 1
FIGURE 1
Inverted squamous papillomas are seen on the right side, synchronous moderately differentiated non-keratinizing invasive squamous cell carcinoma on the left side.
See this image and copyright information in PMC

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