PURPOSE To discuss the treatment and outcomes of inverted papilloma of the nasal cavity and paranasal sinuses. METHODS Review of the pertinent literature. RESULTS Inverted papilloma is a benign, locally aggressive neoplasm that arises in the nasal cavity and is associated with squamous cell carcinoma in approximately 5% of patients. Squamous cell carcinoma may be present with inverted papil...

Carcinomas arising in pre-existing sinonasal papillomas of the nasal septum are rare. To our knowledge only one case has been reported. We report two cases of carcinomas occurring in septal papillomas. In the first case a carcinoma developed in an exophytic papilloma 16 years after the first operation for a papilloma. In the second case a carcinoma was present at the first presentation within a...

Sinonasal inverted papilloma is a benign neoplasm of epithelial origin, which represents 0.5 to 4% of all sinonasal tumors. Despite the histological benign nature of this type of tumor, it has a high rate of recurrence after surgical resection and significant malignant potential. Sinonasal inverted papilloma is treated as a locally aggressive tumor. The aggressive surgical approaches, such as e...

INTRODUCTION The aim of this work was to analyze the occurrence of inverted papilloma within the nose and paranasal sinuses, the extent of lesions and the clinical course in the patients who underwent endoscopic surgery. MATERIALS AND METHODS Between the years of 2006-2012, at the Department of Otolaryngology and Laryngological Oncology, 2295 patients were subjected to surgery due to paranasa...

We report a 35-year-old man with bladder carcinoma developing 2 months after urethral condyloma acuminatum, with an 8-year history of persistent human papilloma virus-58 infection in the urinary tract. DNA was extracted from paraffin-embedded tissue specimens. Human papilloma virus-6 and -58 were detected in the condyloma, whereas human papilloma virus-58 was detected in the carcinoma. In situ ...

Oncocytic Schneiderian papilloma is one of the three morphologically separate tumors that arise from the Schneiderian membrane (the others are fungi form papilloma and inverted papilloma). It is quite rare in our environment. We report a case of Oncocytic Schneiderian papilloma arising from the right maxillary sinus and extending to the ipsilateral nasal region in a 26year old Nigerian male. Th...

OBJECTIVES Papilloma frequently develops as a benign tumor of the head and neck area, but its potential for malignant transformation has yet to be studied. This study aims to provide basic information for papillomas using the immunohistochemical staining of matrix metalloproteinase 2 (MMP-2) and human papilloma virus (HPV) 16 and 18. MATERIALS AND METHODS To evaluate the malignant transformat...

In vivo assay of Shope papilloma protein extract and in vitro assay of extracts from Shope papilloma, Vx7 and Vx2 carcinomas showed strong interferon-like activity in the papilloma and moderate activity in the carcinomas. The interpretation is that the presence of viral nucleic acid in all three tumors stimulated the production of this substance even though fluorescent antibody studies reveal t...