Fig. 2
From: Primary pancreatic paraganglioma: a case report and literature review
Pathology slides of the resected specimen with different stains. a Hematoxylin and eosin staining demonstrating the classic Zellballen pattern of paraganglioma (HE, ×400). b The chief cells showed positive staining to NSE (IHC, ×400). c The chief cells showed positive staining to Syn (IHC, ×400). d The sustentacular cells showed positive staining to S-100 (IHC, ×400)