PMID- 19694823 OWN - NLM STAT- MEDLINE DCOM- 20091113 LR - 20161125 IS - 1365-2559 (Electronic) IS - 0309-0167 (Linking) VI - 55 IP - 2 DP - 2009 Aug TI - Urothelial carcinoma following augmentation cystoplasty: an aggressive variant with distinct clinicopathological characteristics and molecular genetic alterations. PG - 161-73 LID - 10.1111/j.1365-2559.2009.03363.x [doi] AB - AIMS: Patients who have undergone intestinal augmentation cystoplasty are at risk for developing latent vesicle malignancy. The aim was to evaluate the histological and immunohistochemical characteristics and molecular genetic alterations in these neoplasms. METHODS AND RESULTS: Four patients developing urothelial neoplasms after augmentation cystoplasty were included in the current study. The mean age of the patients, including two men and two women, was 37 years. The latency from bladder augmentation to developing malignancy ranged from 17 to 21 years (mean 19 years). All patients died of cancer shortly after diagnosis (mean 5 months). In the morphological evaluation, all tumours were high-grade (grade 3) invasive urothelial carcinoma comprising various architectural patterns with brisk mitoses and tumour necrosis. Three harboured glandular differentiation and the remaining one showed squamous differentiation. All cases revealed abnormal decreasing beta-catenin expression. Two tumours showed nuclear expression of CDX2. On UroVysion fluorescence in situ hybridization (FISH) analysis, all tumours displayed characteristic chromosomal abnormalities. Point mutations of both FGFR3 and p53 genes were identified in one case. CONCLUSIONS: Urothelial carcinomas developed after augmentation cystoplasty are extremely aggressive and exhibit distinct morphological, immunohistochemical and genetic characteristics. UroVysion FISH analysis may offer a surveillance strategy in patients who undergo augmentation cystoplasty. FAU - Sung, Ming-Tse AU - Sung MT AD - Department of Pathology, Chang Gung Memorial Hospital-Kaohsiung Medical Centre, Chang Gung University College of Medicine, Kaohsiung, Taiwan. FAU - Zhang, Shaobo AU - Zhang S FAU - Lopez-Beltran, Antonio AU - Lopez-Beltran A FAU - Montironi, Rodolfo AU - Montironi R FAU - Wang, Mingsheng AU - Wang M FAU - Davidson, Darrell D AU - Davidson DD FAU - Koch, Michael O AU - Koch MO FAU - Cain, Mark P AU - Cain MP FAU - Rink, Richard C AU - Rink RC FAU - Cheng, Liang AU - Cheng L LA - eng PT - Case Reports PT - Journal Article PL - England TA - Histopathology JT - Histopathology JID - 7704136 RN - 0 (CDX2 Transcription Factor) RN - 0 (CDX2 protein, human) RN - 0 (Homeodomain Proteins) RN - 0 (beta Catenin) RN - EC 2.7.10.1 (FGFR3 protein, human) RN - EC 2.7.10.1 (Receptor, Fibroblast Growth Factor, Type 3) SB - IM MH - Adult MH - CDX2 Transcription Factor MH - *Carcinoma, Transitional Cell/genetics/pathology MH - Cell Nucleus/metabolism MH - Chromosome Aberrations MH - Cystoscopy/*adverse effects MH - Exons MH - Fatal Outcome MH - Female MH - *Genes, p53 MH - Homeodomain Proteins/genetics/metabolism MH - Humans MH - Immunohistochemistry MH - In Situ Hybridization, Fluorescence/methods MH - Male MH - Mitosis/genetics MH - Necrosis/pathology MH - Nucleic Acid Amplification Techniques MH - Point Mutation MH - Polymerase Chain Reaction MH - Receptor, Fibroblast Growth Factor, Type 3/*genetics MH - Retrospective Studies MH - *Urinary Bladder Neoplasms/genetics/pathology MH - beta Catenin/genetics EDAT- 2009/08/22 09:00 MHDA- 2009/11/17 06:00 CRDT- 2009/08/22 09:00 PHST- 2009/08/22 09:00 [entrez] PHST- 2009/08/22 09:00 [pubmed] PHST- 2009/11/17 06:00 [medline] AID - HIS3363 [pii] AID - 10.1111/j.1365-2559.2009.03363.x [doi] PST - ppublish SO - Histopathology. 2009 Aug;55(2):161-73. doi: 10.1111/j.1365-2559.2009.03363.x.