Fig. 2
From: Revisiting the use of CK7 and CK20 immunohistochemical stains in pathological diagnoses
The specimen sources of the three groups of cases in all cases and the analyzed cases. CK7, cases where only CK7 stain was performed; CK20, cases where only CK20 stain was performed; CK7 & CK20, cases where both CK7 and CK20 stains were performed. CNS, central nervous system; GI, gastrointestinal; Gyn, gynecological; ENT, head and neck