"Mucin"-secreting papillary renal cell carcinoma: clinicopathological, immunohistochemical, and molecular genetic analysis of seven cases

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00669806%3A_____%2F16%3A10324824" target="_blank" >RIV/00669806:_____/16:10324824 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11140/16:10324824

Result on the web

<a href="http://dx.doi.org/10.1007/s00428-016-1936-7" target="_blank" >http://dx.doi.org/10.1007/s00428-016-1936-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00428-016-1936-7" target="_blank" >10.1007/s00428-016-1936-7</a>

Result language

angličtina

Original language name

"Mucin"-secreting papillary renal cell carcinoma: clinicopathological, immunohistochemical, and molecular genetic analysis of seven cases

Original language description

Mucin and mucin-like material are features of mucinous tubular and spindle renal cell carcinoma (MTS RCC) but are rarely seen in papillary renal cell carcinoma (PRCC). We reviewed 1311 PRCC and identified 7 tumors containing extracellular and/or intracellular mucinous/mucin-like material (labeled as PRCCM). We analyzed these using morphological, histochemical, immunohistochemical, and molecular genetic methods (arrayCGH, FISH). Clinical data were available for six of the seven patients (five males and one female, age range 61-78 years). Follow-up was available for four patients (2-4 years); one patient died of widespread metastases. Tumor size ranged from 3 to 5 cm (mean 3.8). Of all cases, histological architecture showed a predominantly papillary pattern. Mucin or mucin-like was extracellular in one, intracellular in three, and both intra/extracellular in three cases. All tumors were positive for AMACR, vimentin, and OSCAR, while CK7 was positive in four. Mucicarmine stain was positive in all cases, PAS in six and Alcian blue in three cases. Five tumors were positive for MUC 1, but none were positive for MUC 2, MUC 4, or MUC 6. In only four cases, genetic analysis could be performed. Gain of chromosomes 7 and 17 was found in two cases; gain of 17 only was found in one case. Loss of heterozygosity of 3p was found in one case together with polysomy of chromosomes 7 and 17. No abnormalities of VHL, fumarate dehydrogenase, and TFE3 genes were detected. We conclude that PRCCM is a rare but challenging subtype of RCC that deserves to be further studied. In all the tumors, the mucin-like material was found in those stained with mucicarmin, but other conventional and immunohistochemical stains did not reveal consistent features of a single mucin. The molecular-genetic profile of these tumors was most consistent with that of typical papillary RCC, although one case had mixed genetic features of papillary and clear RCC.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

FP - Other medical fields

OECD FORD branch

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Project

<a href="/en/project/ED2.1.00%2F03.0076" target="_blank" >ED2.1.00/03.0076: Biomedical Centre of the Faculty of Medicine in Pilsen</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Virchows Archiv

ISSN

0945-6317

e-ISSN

—

Volume of the periodical

469

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

10

Pages from-to

71-80

UT code for WoS article

000379264700009

EID of the result in the Scopus database

2-s2.0-84963677311