Fig. 5: Detection of PAX3-FOXO1-positive tumors by immunohistochemistry.

PAX3-FOXO1 was detected in a tumor sample from a patient with alveolar rhabdomyosarcoma containing the t(2;13) using mAb PFM.2. Sections were stained with A Hematoxylin and Eosin, B PFM.2, C desmin, and D myogenin.