Inverted papiloma

INTRODUCTION: Inverted urothelial papilloma is a very rare neoplasm in the pediatric population. Because of the low incidence of cases and the reports of atypical components, the management and follow-up plan is not standardized. OBJECTIVE: To report a case of inverted papilloma in a female adolescent and to review the diagnostic approach, management, and follow-up plan for this entity. CLINICAL CASE: We reported a case of inverted papilloma as an incidental finding of a polypoid lesion on bladder ultrasound in a 13-year-old adolescent...

The inverted sino-nasal papilloma is a benign epithelial lesion, ranging from 1% to 5% of the tumors that reside in this area. It is characterized by a tendency towards local bone destruction, recurrence and malignant transformation. This is a presentation of two cases diagnosed and surgically treated for malignant inverted papiloma, which started in the epithelium of the maxillary sinuses. The cases had in common the late presentation of the patient to the surgeon, thus the local destruction was significant with extension towards the eye socket and the base of the skull...

The aims of the present study were to investigate the expression of minichromosome maintenance complex component 7 (MCM7) and determine its association with tumor proliferation and invasion in pathological tumor (pT)a and pT1 papillary urothelial neoplasia. The MCM7, MCM3 and Ki67 proteins were detected in 154 cases of urothelial neoplasia using immunohistochemical analysis. The expression of MCM7 significantly increased (P<0.001) as the pathological stage and grade progressed between inverted papilloma, papillary urothelial neoplasm of low malignant potential (PUNLMP), pTa tumor and pT1 tumor...

Authors address the issue of a frequent benign tumour of the nasal cavity and paranasal sinuses -  inverted papilloma. They analyse the available diagnostic methods and treatment options. On the background of selected case reports of a rare malignant transformation they emphasize the need for longterm dispensarization as a part of management plan for patients with this oncological disease.

INTRODUCTION: Papilloma of the nose and paranasal sinuses is a benign tumor originated from nose mucosa. Especially inverted papilloma tumor has a significant recurrence and malignancy potential rate. The aim of the study was the analysis of clinical and treatment outcomes of patients with papilloma of the nose and paranasal sinuses. MATERIAL AND METHODS: The retrospective analysis was curried out on 41 patients--16 with papiloma of the nasal vestibule and 25 with inverted papilloma the nose and paranasal sinuses surgically treated in I ENT Clinic Medical University in Lodz between 1998-2004 years...

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