Int Arch Otorhinolaryngol 2014; 18(03): 332-335
DOI: 10.1055/s-0034-1370761
Case Report
Thieme Publicações Ltda Rio de Janeiro, Brazil

Sphenoid Sinus Inverted Papilloma: A Case Report and Literature Review

Gustavo Figueiredo Nunes Rabelo
1   ENT MR3, Otorhinolaryngology Department, Santa Casa de Belo Horizonte, Belo Horizonte, MG, Brazil
,
Vinícius Antunes Freitas
2   ENT, Head and Neck Surgeon, Otorhinolaryngology Department, Santa Casa de Belo Horizonte, Belo Horizonte, MG, Brazil
,
Bruno Hollanda Santos
3   Post graduation student, Otorhinolaryngology Department, IEP Santa Casa de Belo Horizonte
,
Diego Costa de Souza Ferreira
4   ENT MR2, Otorhinolaryngology Department, Santa Casa de Belo Horizonte, Belo Horizonte, MG, Brazil
,
Ana Elisa Mota Silveira Magalhães
1   ENT MR3, Otorhinolaryngology Department, Santa Casa de Belo Horizonte, Belo Horizonte, MG, Brazil
,
Mírian Cabral Moreira de Castro
5   PhD; Head of the Otorhinolaryngology Department, Santa Casa de Belo Horizonte, Belo Horizonte, MG, Brazil
› Author Affiliations
Further Information

Publication History

09 June 2013

02 December 2013

Publication Date:
11 April 2014 (online)

Abstract

Introduction Inverted papilloma is a rare benign tumor of the nasal fossa, which usually originates from its lateral wall. Only 5% of cases demonstrate exclusive sinus involvement. Primary sphenoid sinus involvement is even rarer. Although considered a benign lesion, the tumor has a potentially invasive nature and has also been found to have an associated malignancy rate of 7 to 15%.

Objectives To report a case of inverted nasal papilloma originating in a rare location: the sphenoid sinus.

Resumed Report a 56-year-old woman, presented to our outpatient clinic complaining of frontal headache, occasional otalgia and recent forgetfulness. She was initially evaluated by a neurologist and then submitted to a head magnetic resonance imaging. A lesion was found to be filling both sphenoid sinuses. Sinus computed tomography showed an opacified sphenoid sinus with apparent bony integrity. The patient underwent sphenoidotomy through a transnasal endoscopic approach. A bleeding papillomatous lesion was identified. A biopsy was performed and histopathologic study suggested inverted papilloma. The lesion was then completely resected. The patient has been followed for 60 days after surgery; no signs of recurrence were found upon flexible nasofibroscope examination.

Conclusion Inverted Papilloma exclusively involving the sphenoid sinus is a rare entity. Non specific symptomatology and Clinical presentation make this kind of tumor a diagnostic and therapeutic challenge. The Endoscopic Sphenoidotomy has been the treatment of choice. Close follow-up is required in order to detect possible recurrences and malignant transformation.

 
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