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)…
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…
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)…
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…
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…
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…
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…
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…
Functional Imaging and Peptide Receptor Radionuclide Therapy
Fig. 11.1 Octreotide amino acid structure. (Reproduced from [2], with permission) The presence of octreotide-binding SSTRs on NENs allows the in vivo functional visualization of these tumors with the use…
