Figure 3
From: Ectopic cervical thymoma in a patient with Myasthenia gravis

Photomicrographys (hematoxylin and eosin staining). (A) Lobules separated by thick fibrous bands (× 40). (B) Microscopic findings of transition between lymphocyte-rich area and the lymphocyte-poor oval or spindle-shaped epithelial cell components, compatible with a WHO type AB thymoma (× 400).