Figure 4From: Mixed acinar-endocrine carcinoma of the pancreas: a case report and review of the literatureA. Histological section of the pancreatic tumor, showing intense focal positive reaction to synaptophysin (immunostain, × 120), B. Histological section of the pancreatic tumor showing diffuse positive immunoreaction to α1-antitrypsin (immunostain, × 120).Back to article page