World Articles in Ear Nose and Throat 
Clinical Appearance of Benign Sinonasal Masses
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Case 5B:  Inverted Papilloma              Go Back To BSM Manuscript

A 65 year old female presented with the complaint of right-sided nasal obstruction with intermittent episodes of epistaxis.

The CT scan showed a hypodense mass in the left nasal cavity attached to the septum and right lateral nasal wall with blockage of the left ethmoid and frontal sinuses.  Diagnostic nasal endoscopy showed a reddish brown mass which bled profusely on probing, the mass was removed endoscopically and was sent for histopathological examination.

Figure 1:  Intra-Nasal  Appearance of an Inverted Papilloma  Click on Pictures to Enlarge

Figure 2:  Coronal CT Scan of an Inverted Papilloma 
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The circumscribed margin of the lesion showed a thickened squamous type of epithelium.  Multiple papillary folds with fibrovascular core were seen running into fibro myxoid stroma.  Papillae were lined by multilayered epithelium that had regular nuclei. 
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Figure 3:  Histological Appearance 
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World Articles in Ear, Nose and Throat                 Jan 27, 2012              Vol 5-1

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