Abstract:
AIMS:Immunohistochemistry plays a pivotal role in cancer differential diagnostics. To identify the primary tumour from a metastasis specimen remains a significant challenge, despite the availability of an increasing number of antibodies. The aim of the present study was to provide evidence-based data on the diagnostic power of antibodies used frequently for clinical differential diagnostics. METHODS AND RESULTS:A tissue microarray cohort comprising 940 tumour samples, of which 502 were metastatic lesions, representing tumours from 18 different organs and four non-localized cancer types, was analysed using immunohistochemistry with 27 well-established antibodies used in clinical differential diagnostics. Few antibodies, e.g. prostate-specific antigen and thyroglobulin, showed a cancer type-related sensitivity and specificity of more than 95%. A majority of the antibodies showed a low degree of sensitivity and specificity for defined cancer types. Combinations of antibodies provided limited added value for differential diagnostics of cancer types. CONCLUSIONS:The results from analysing 27 diagnostic antibodies on consecutive sections of 940 defined tumours provide a unique repository of data that can empower a more optimal use of clinical immunohistochemistry. Our results highlight the benefit of immunohistochemistry and the unmet need for novel markers to improve differential diagnostics of cancer.
journal_name
Histopathologyjournal_title
Histopathologyauthors
Gremel G,Bergman J,Djureinovic D,Edqvist PH,Maindad V,Bharambe BM,Khan WA,Navani S,Elebro J,Jirström K,Hellberg D,Uhlén M,Micke P,Pontén Fdoi
10.1111/his.12255subject
Has Abstractpub_date
2014-01-01 00:00:00pages
293-305issue
2eissn
0309-0167issn
1365-2559journal_volume
64pub_type
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