The atypical epithelioid cells stained positive with the MFN116 antibody (Fig. 3), confirming the diagnosis of thymoma. Figure 2: Photomicrograph of a section of a rat thymoma stained with ...

A diagnosis of ectopic intrathyroidal thymoma was made only after appropriate ... and a fine-needle aspiration biopsy revealed an atypical lymphoid proliferation. The smears (Fig.