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Handling and reporting of nephrectomy specimens for adult renal tumours: a survey by the European Network of Uropathology


Algaba, F; Delahunt, B; Berney, D M; Camparo, P; Compérat, E; Griffiths, D; Kristiansen, G; Lopez-Beltran, A; Martignoni, G; Moch, H; Montironi, R; Varma, M; Egevad, L (2012). Handling and reporting of nephrectomy specimens for adult renal tumours: a survey by the European Network of Uropathology. Journal of Clinical Pathology, 65(2):106-113.

Abstract

AimTo collect information on current practices of European pathologists for the handling and reporting of nephrectomy specimens with renal tumours.Methods and ResultsA questionnaire was circulated to the members of the European Network of Uropathology, which consists of 343 pathologists in 15 European countries. Replies were received from 48% of members. These replies indicated that nephrectomy specimens are most often received in formalin. Lymph nodes are found in less than 5% of nephrectomy specimens. All respondents give an objective measure of tumour size, most commonly in three diameters. The most common method to search for capsule penetration is to slice tissue outside the tumour perpendicularly into the tumour. The most common sampling algorithm from tumours greater than 2 cm is one section for every centimetre of maximum tumour diameter. Most respondents use the 2004 WHO renal tumour classification although only slightly over half consider small papillary tumours malignant if the diameter is greater than 5 mm. The Fuhrman grading system is widely used. Almost all use immunohistochemistry for histological typing in some cases, while only 7% always use it. The most utilised special stains are CK7 (95%), CD10 (93%), vimentin (86%), HMB45 (68%), c-kit (61%) and Hale's colloidal iron (52%). Only 18% use other ancillary techniques for diagnosis in difficult cases.ConclusionsWhile most pathologists appear to follow published guidelines for reporting renal carcinoma, there is still a need for the development of consensus and further standardisation of practice for contentious areas of specimen handling and reporting.

AimTo collect information on current practices of European pathologists for the handling and reporting of nephrectomy specimens with renal tumours.Methods and ResultsA questionnaire was circulated to the members of the European Network of Uropathology, which consists of 343 pathologists in 15 European countries. Replies were received from 48% of members. These replies indicated that nephrectomy specimens are most often received in formalin. Lymph nodes are found in less than 5% of nephrectomy specimens. All respondents give an objective measure of tumour size, most commonly in three diameters. The most common method to search for capsule penetration is to slice tissue outside the tumour perpendicularly into the tumour. The most common sampling algorithm from tumours greater than 2 cm is one section for every centimetre of maximum tumour diameter. Most respondents use the 2004 WHO renal tumour classification although only slightly over half consider small papillary tumours malignant if the diameter is greater than 5 mm. The Fuhrman grading system is widely used. Almost all use immunohistochemistry for histological typing in some cases, while only 7% always use it. The most utilised special stains are CK7 (95%), CD10 (93%), vimentin (86%), HMB45 (68%), c-kit (61%) and Hale's colloidal iron (52%). Only 18% use other ancillary techniques for diagnosis in difficult cases.ConclusionsWhile most pathologists appear to follow published guidelines for reporting renal carcinoma, there is still a need for the development of consensus and further standardisation of practice for contentious areas of specimen handling and reporting.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Institute of Surgical Pathology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2012
Deposited On:27 Dec 2011 09:28
Last Modified:05 Apr 2016 15:14
Publisher:BMJ Publishing Group
ISSN:0021-9746
Publisher DOI:https://doi.org/10.1136/jclinpath-2011-200339
PubMed ID:21965832
Permanent URL: https://doi.org/10.5167/uzh-52846

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