Fig. 4From: Long-term survival of an adult patient with undifferentiated embryonal sarcoma of the liver with multidisciplinary treatment: a case report and literature reviewa The tumor is composed of spindle-shaped cells (× 200, HE stain). b Some tumor cells contain eosinophilic globules, which are d-PAS-positive (× 400, PAS stain, black arrow). c Sarcomatous cells surround bile duct-like structures (× 400, HE stain, black arrow). d-PAS, d-periodic acid Schiff; HE, hematoxylin and eosinBack to article page