Fig. 4From: A rare association between true thymic hyperplasia and thyroid follicular tumor: a case reportImmunohistochemical findings of the mediastinal mass. a hematoxylin and eosin (H&E) stain. b Immunostaining for terminal deoxynucleotidyl transferase. c Immunostaining for cytokeratin 19 (CK19). d Immunostaining for CK7. Bars, 200 μmBack to article page