Inverted papilloma of the bladder is thought to be benign, but some urothelial carcinomas show a prominent inverted growth pattern which may pose a diagnostic dilemma. A recent meta-analysis of 322 cases reported with respect to inverted papilloma of the lower urinary tract identified a recurrence rate of 3.85%. Moreover, 1.55%, 5.90% and 1.54% were associated with previous, simultaneous and su...

Introduction Nasal obstruction is one of the main rhinologic complaints, and two diseases must be investigated as differential diagnosis: rhinosinusal polyposis and inverted papilloma. Using traditional methods, the differential diagnosis between these diseases may be difficult. The morphometric study may be a useful tool for differential diagnosis and to define prognosis. Objective Calculate t...

We report a new case of inverted papilloma of the ureter, with an uncommon clinic manifestation as a obstructive uropathy. In spite of the bening nature the inverted papilloma of the urinary tract, it can be multifocal and relapsing and it may be associated with low rate urothelial carcinomas. A precise pre-operative diagnosis is necessary for a conservative or endourologic treatment. The follo...

Inverted Papilloma is a benign sinonasal tumor which generates considerable interest because they can recur and undergo malignant transformation. We report a case of giant inverted papilloma coming out of nasal cavity through the nasopharynx and hanging in oropharynx which was treated by transnasal endoscopic approach. The patient was asymptomatic 9 months after surgery. Endoscopic approach has...

OBJECTIVE Inverted papilloma attached to the ventral skull base presents a surgical dilemma because surgical removal of the bony pedicle is critical to decrease risk of recurrence. The objective of this study is to evaluate the effectiveness of endoscopic management of skull base inverted papilloma. STUDY DESIGN Case series with planned data collection. SETTING Tertiary medical center. SU...

Inverted papillomas of the nose and paranasal sinuses are uncommon neoplasms, characterized by their tendency to occur and by their association with malignancy. In the past decade there has been a trend toward the use of endoscopic surgical techniques in the management of these tumors. This article presents the results of a prospective study of 24 patients with inverted papilloma resected by th...

Inverted papilloma is a benign locally aggressive tumor of paranasal sinuses which has been traditionally managed with external surgical approaches. Advances in tumor imaging, surgical instrumentation and intraoperative visualization have led to a gradual shift to endonasal attachment-oriented surgery. Involvement of both frontal sinuses by inverted papilloma is rare. There are scant reports in...

Inverted papilloma of the urinary bladder is rare. In the paediatric group, this condition is even more rare. To date only five cases have been reported in the English literature. Due to its rarity, the morphology and biological behaviour are still uncertain. We report a case of inverted papilloma of the urinary bladder in a 12-year-old girl who presented with recurrent haematuria. The patient’...

BACKGROUND Maxillary sinus inverted papilloma entails medial maxillectomy and is associated with high incidence of recurrence. OBJECTIVE To study the impact of prior surgery on recurrence rate after transnasal endoscopic medial maxillectomy. METHODOLOGY Eighteen patients with primary and 33 with recurrent maxillary sinus inverted papilloma underwent transnasal endoscopic medial maxillectomy...