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Background
Traditional immunohistochemistry (IHC) for breast carcinomas has shown low detection rates of metastatic breast carcinoma (MBC) in effusions. Although GATA3 has enhanced diagnostic accuracy in this realm, its limited utility in detecting triple‐negative breast carcinoma (TNBC) has been highlighted. TRPS1 has been introduced as a potentially sensitive and specific marker in detecting MBC...
There are limited studies on the utility of immunostaining in cytologic specimens suspected of melanoma. In this study, we examined the performance of the most commonly used antibodies including monoclonal antibodies against Melan‐A (A103), S‐100, and HMB‐45 antigens. Immunostains were performed on formalin‐fixed, paraffin‐embedded cell blocks prepared from 100 cytologic specimens. The specimens consisted...
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