inverted papilloma


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in·vert·ed pap·il·lo·ma

an eplithelial tumor of the urinary bladder or nasal cavity in which proliferating epithelium is invaginated beneath the surface and is more smoothly rounded than in other papillomas.

inverted papilloma

ENT An inverted or exophytic tumor of nasal cavity and paranasal sinuses, which recurs in ±23 of cases; malignancy develops in 2% Surgical pathology A proliferation of thin epithelium overlying papillary fibrovascular fronds, found in either transitional epithelium–renal pelvis, ureters, bladder, urethra or stratified cuboidal epithelium–paranasal region,34 of Pts also had HPV types 6 and 11 and upper respiratory tract lesions
References in periodicals archive ?
Sinonasal inverted papilloma associated with squamous cell carcinoma.
5 4 Cyst 3 60 2 40 5 Fungal Granuloma 3 75 1 25 Benign Tumours 6 Haemangioma 4 40 6 60 7 Squamous Cell Papilloma 3 50 3 50 8 Angiofibroma 3 100 0 0 9 Inverted Papilloma 3 100 0 0 10 Neurofibroma 1 100 0 0 11 Ossifying Fibroma of Maxilla 0 0 1 100 12 Pleomorphic Adenoma 1 100 0 0 13 Fibroma 2 66 1 33 Malignant Tumours 14 Sq.
Human papillomavirus types important in progression of inverted papilloma.
Treatment outcomes in the management of inverted papilloma : An analysis of 160 cases.
Clinical studies on inverted papilloma of the urinary tract: report of 48 cases and review of the literature.
Histology and histogenesis of two different types of inverted papillomas.
25,26) Inverted papilloma has a tendency of recurrence and proper surgical planning is recommended to minimise such recurrence.
For example, convoluted cerebriform pattern is a reliable MRI feature of sinonasal inverted papillomas, [sup][8] but it is also demonstrated in a proportion of malignant tumors.
This variant of urothelial bladder cancer often resembles clinical and histological features of inverted papilloma, von Brunn's nests (VBNs), cystitis cystica, nephrogenic metaplasia and sometimes usual TCC.
Inverted papilloma and papillary transitional cell carcinoma of the urinary bladder: report of four cases of inverted papilloma, one showing papillary malignant transformation and review of the literature.