Fig. 7From: Primary thymus tumors: retrospective case analysis at a reference center in Latin America, 2011–2019a, b, c H&E staining evaluated at 4x, 10x and 20x, corresponding to a delimited, capped lesion of thymic origin, composed of cells with squamous differentiation. There are no Hassall corpuscles. The lesion consists of large epithelial cells with presence of lymphocytes between them. Diagnosis of thymoma with squamous differentiation type B1/B2 is madeBack to article page