KRT7 and thymus gland adenocarcinoma: Maghbool et al. described such cases in their immunohistochemical and molecular study of thymic adenocarcinoma, reporting frequent expression of CK7, CK20, CDX2, villin, and MOC31, as well as genetic alterations involving chromosome 6p21.32, supporting the recognition of thymic adenocarcinoma as a distinct but exceptionally rare entity [9,10].