Expression rate of mesothelioma markers in some cancers.

Intensity and proportion of staining in the cancer cells were evaluated in the entire microscopic field of each specimen. Cases were defined as positive if the Allred score of the marker was more than 3. In the immunostaining of calretinin or WT-1, staining in the nucleus, but not the cytoplasm, was designated as a positive sample. Calretinin or WT-1 was detected in the cytoplasm of 14% or 64% of cancers, respectively. The asterisk marks the sample from a mucus-producing cancer. AD, adenocarcinoma; BSS, biphasic synovial sarcoma; EAS, epithelioid angiosarcoma; EHE, epithelioid hemangioendothelioma; RCC, renal cell carcinoma; SCC, squamous cell carcinoma; UC, urothelial carcinoma.