eISSN 2329-0358


Welcome to the Annals of Transplantation

Annals of Transplantation is one of the fast-developing journals open to all scientists and fields of transplant medicine and related research. The journal is published quarterly and provides extensive coverage of the most important advances in transplantation.
Using an electronic on-line submission and peer review tracking system, Annals of Transplantation is committed to rapid review and publication. The average time... read more

Published: 2016-12-06

De Novo Renal Neoplasia After Kidney Transplantation According to New 2016 WHO Classification of Renal Tumors

Albino Eccher, Luigino Boschiero, Brett Delahunt, Luca Cima, Francesca Fior, Francesco Nacchia, Momo Rostand, Amedeo Carraro, Umberto Tedeschi, Gianluigi Zaza, Marilena Casartelli Liviero, Laura Zampicinini, Marco Chilosi, Giuseppe Feltrin, Claudio Rago, Antonietta D'Errico, Claudio Ghimenton, Guido Martignoni, Matteo Brunelli

(Department of Diagnostics and Public Health, University and Hospital Trust of Verona, Verona, Italy)

Ann Transplant 2016; 21:745-754

DOI: 10.12659/AOT.900386

BACKGROUND: De novo renal neoplasia developing after kidney transplantation at Verona Kidney Transplant Center were reviewed according to new 2016 WHO Renal Tumor Classification.
MATERIAL AND METHODS: Primary renal tumors developed in native or transplanted kidneys de novo following renal transplantation were retrieved and histologically reviewed by three expert uropathologists. Immunoexpression of the diagnostic antigens CD13, CD10, CK7, CK34bE12, AMACR, CAIX, AE1/AE3, CK14, GATA-3, HMB-45, cathepsin-k, S100A1, and parvalbumin was assessed. Predictive antigens ph-mTOR and ph-p70S6k were also tested.
RESULTS: Two thousands and sixteen kidney transplantations have been carried out from 1968–2015. Follow-up was available per 1,646 patients (mean 8.4 years). We observed 16 cases of de novo renal neoplasia arising in patients 16 to 286 months post-transplantation. Nine clear cell, two papillary RCCs and a single case of the new WHO entity denominated “acquired cystic disease-associated RCC” were identified in native kidneys. Another new WHO tumor entity called “clear cell papillary RCC” was diagnosed and a new variant of papillary RCC with diffuse clear cytoplasm was also identified. The majority of tumors were low stage and low grade according to the new ISUP grading system. Seven patients were additionally treated with mTOR inhibitors. Post-cancer follow-up ranged from 62 to 281 months. One patient showed a recurrence (a lung metastases) and died. Of the remaining patients, three died of non-cancer-related causes.
CO... read more

Keywords: Carcinoma, Renal Cell, Kidney Neoplasms, Kidney Transplantation, World Health Organization

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