A: Alveolar soft part sarcoma showing alveolar nesting pattern with tumor cells containing abundant eosinophilic cytoplasm and discohesive nature (H&E, ×40), B: There are histochemically PAS-positive and diastase-resistant rod-shaped multiple crystalline materials in the cytoplasm of some tumor cells (dPAS, ×400), C: Histochemically reticulin (silver) framework surrounding the tumor nests (Reticulin, ×400), D: Tumor cells showing focal immunoreactivity with GFAP (×400), E: Tumor cells with no immunoreactivity with S100 protein (×400), F: Several tumor cells showing nuclear immunoreactivity with TFE3 (×400). PAS: periodic acid schiff, dPAS: distaste periodic acid schiff, GFAP: glial fibrillary acidic protein, TFE3: transcription factor E3.