Fig. 1
From: Sarcomatoid carcinoma presenting as cancers of unknown primary: a clinicopathological portrait
Immunohistochemistry Data. a Heat map of immunohistochemical (IHC) marker expression across the sarcomatoid carcinoma cases. All but one case had IHC data (n = 47). Twenty-three markers had IHC expression data in ≥10% of cases and are depicted. Green denotes positive staining and red denotes negative staining. Grey indicates cases where staining for that marker was not reported. b Lineage and organ-specific immunohistochemical markers with percentages calculated as positive and negative staining divided by the total number of cases tested. Pancytokeratin includes AE1/3 and Cam5.2 markers