Fig. 2From: A case of a gastric granular cell tumor preoperatively diagnosed and successfully treated by single-incision laparoscopic surgeryThe specimens by endoscopic ultrasound sonography-guided fine needle aspiration biopsy (EUS-FNAB) using a hematoxylin-eosin staining (× 400) and b immunohistochemical staining for S-100 protein (× 400)Back to article page