Rare Primary Tumors of the Pancreas

Jun 14, 2017 by in GENERAL SURGERY Comments Off on Rare Primary Tumors of the Pancreas

Fig. 14.1 Whipple specimen. Voluminous acinar cell carcinoma with multi-nodular aspect involving extensively the head of the pancreas and dislocating the common bile duct. Foci of necrosis are present (asterisk)…

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Imaging

Jun 14, 2017 by in GENERAL SURGERY Comments Off on Imaging

Fig. 9.1 Trans-abdominal US and CEUS imaging findings of small PanNENs. Small iso-echoic tumor (arrows) located on the pancreatic head (a), showing early intense enhancement (arrows) on CEUS (b). Typical…

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Tumor-like Lesions of the Pancreas

Jun 14, 2017 by in GENERAL SURGERY Comments Off on Tumor-like Lesions of the Pancreas

Fig. 17.1 Autoimmune pancreatitis Whole-mount section of the head of the pancreas: ill-defined, firm mass extending into the peri-pancreatic tissues and narrowing the secondary ducts Fig. 17.2 Distinctive microscopic findings…

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Intraductal Papillary Mucinous Neoplasms

Jun 14, 2017 by in GENERAL SURGERY Comments Off on Intraductal Papillary Mucinous Neoplasms

Fig. 5.1 Intraductal papillary mucinous neoplasm (IPMN), intestinal type papillae, with moderate dysplasia (a) and MUC2-positivity (b) Fig. 5.2 IPMN, pancreatobiliary type papillae, with severe dysplasia (a) and MUC1-positivity (b)…

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Rare Secondary Tumors of the Pancreas

Jun 14, 2017 by in GENERAL SURGERY Comments Off on Rare Secondary Tumors of the Pancreas

Fig. 15.1 Metastatic breast cancer. Histologically, the neoplastic cells involve the duodenal wall (a) and pancreatic lobules, replacing normal acinar tissue (b) With regard to the location, 25% of the…

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Rare Variants of Ductal Adenocarcinoma of the Pancreas

Jun 14, 2017 by in GENERAL SURGERY Comments Off on Rare Variants of Ductal Adenocarcinoma of the Pancreas

, Marco Dal Molin, Federica Pedica, Paola Capelli, Mirko D’Onofrio and Giovanni Butturini (1) Surgery Unit, Casa di cura, “Dr. P. Pederzoli”, Peschiera del Garda, (VR), Italy   Abstract Histologic variants of ductal adenocarcinoma are neoplasms…

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Solid-pseudopapillary, Acinar, and Other Cystic Neoplasms

Jun 14, 2017 by in GENERAL SURGERY Comments Off on Solid-pseudopapillary, Acinar, and Other Cystic Neoplasms

Fig. 4.1 Solid-pseudopapillary neoplasm. Pseudopapillary structures with fibrovascular cores (left) and a solid area showing small monomorphic cells (right) Fig. 4.2 Solid-pseudopapillary neoplasm. Cytoplasmic and nuclear β-catenin immunostaining in neoplastic…

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Pathology and Genetics

Jun 14, 2017 by in GENERAL SURGERY Comments Off on Pathology and Genetics

Well-differentiated neuroendocrine neoplasm (NEN) NEN G1 NEN G2 Poorly differentiated neuroendocrine carcinoma (NEC) Large-cell NEC Small-cell NEC 8.3 Pathology Macroscopically, PanNENs are usually solitary, solid masses, from 1 to 5…

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Mucinous Cystic Neoplasms

Jun 14, 2017 by in GENERAL SURGERY Comments Off on Mucinous Cystic Neoplasms

Fig. 3.1 Mucinous cystedenoma ultrasound. The sonographic scan shows a hypoechoic lesion in the head of the pancreas. The lesions has a macrocystic pattern, as indicated by the large anechoic…

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