Fig. 2From: EUS-guided fine needle aspiration provides an open view for duodenal obstruction caused by urothelial carcinoma: a case reportA and B, Endoscopic ultrasound (EUS), and Doppler EUS revealed duodenal thickening. C, Cytology of endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) specimens (Nikon DS-U3, 40X). D, Hematoxylin and eosin staining of EUS-FNA specimens (Nikon DS-U3, 20X)Back to article page