[Cytokeratins in inverted papillomas of the urinary bladder. (Part 1.)].
Inverted papilloma (transitional cell papilloma, inverted type) is a rare, benign urothelial tumor. The distribution of cytokeratin (CK) expression in 22 cases was investigated and compared with normal urothelium and urothelial carcinomas: CK7/8, basal increased positivity; CK13, diffuse positivity; CK18, loss of intensity and loss of umbrella cell staining; CK19, reduction of positivity; CK20, reduction of umbrella cell staining. The data indicate that the inverted papilloma is a basal cell urothelioma.
Stosiek
P
P
Institut für Pathologie, Klinikum Cottbus.
Kasper
M
M
Seidenschnur
A
A
Goertchen
R
R
D014408:Biomarkers, Tumor / Q000032:analysis*; D002295:Carcinoma, Transitional Cell / Q000473:pathology / Q000601:surgery; D015653:Cystectomy; D004598:Electrosurgery; D006801:Humans; D007124:Immunoenzyme Techniques; D007633:Keratins / Q000032:analysis*; D016609:Neoplasms, Second Primary / Q000473:pathology / Q000601:surgery; D010212:Papilloma / Q000473:pathology / Q000601:surgery; D018308:Papilloma, Inverted / Q000473:pathology* / Q000601:surgery; D001749:Urinary Bladder Neoplasms / Q000473:pathology* / Q000601:surgery
D014408:Biomarkers, Tumor; D007633:Keratins