INTRADUCTAL ONCOCYTIC PAPILLARY NEOPLASM Figure 6-43 INTRADUCTAL ONCOCYTIC PAPILLARY NEOPLASM On CT scan, a multicystic mass is present in the head of the pancreas (arrow). More about this image found in INTRADUCTAL ONCOCYTIC PAPILLARY NEOPLASM On CT scan, a multicystic mass is...

DUCTAL ADENOCARCINOMA Figure 7-4 DUCTAL ADENOCARCINOMA Above: The low attenuation mass (arrow) in the body of the pancreas shows upstream dilatation of the pancreatic duct. Right: On computerized tomography (CT) scan, a low attenuation mass lesion (arrow) in the body of the pancreas with dilatat... More about this image found in DUCTAL ADENOCARCINOMA Above: The low attenuation mass (arrow) in the body ...

SOLITARY FIBROUS TUMOR Figure 13-20 SOLITARY FIBROUS TUMOR A circumscribed yellow-tan mass is in the head of the pancreas. More about this image found in SOLITARY FIBROUS TUMOR A circumscribed yellow-tan mass is in the head of t...

PANCREATIC NEUROENDOCRINE TUMOR (PanNET) Figure 12-6 PANCREATIC NEUROENDOCRINE TUMOR (PanNET) In a computerized tomography (CT) scan, this multi-nodular, variably enhancing mass replaces much of the pancreatic tissue. More about this image found in PANCREATIC NEUROENDOCRINE TUMOR (PanNET) In a computerized tomography (CT)...

AUTOIMMUNE PANCREATITIS-ASSOCIATED REACTIVE FIBROINFLAMMATORY PSEUDOTUMOR Figure 15-18 AUTOIMMUNE PANCREATITIS-ASSOCIATED REACTIVE FIBROINFLAMMATORY PSEUDOTUMOR The extensive storiform fibrosis in this case formed a mass. Note the lymphocytic venulitis (top left, arrow). More about this image found in AUTOIMMUNE PANCREATITIS-ASSOCIATED REACTIVE FIBROINFLAMMATORY PSEUDOTUMOR ...

DESMOPLASTIC SMALL ROUND CELL TUMOR Figure 13-25 DESMOPLASTIC SMALL ROUND CELL TUMOR This neoplasm forms a hard tan-white mass because of the characteristic desmoplastic component of the neoplasm. Areas of necrosis and hemorrhage are present. More about this image found in DESMOPLASTIC SMALL ROUND CELL TUMOR This neoplasm forms a hard tan-white m...

COLLOID CARCINOMA Figure 8-5 COLLOID CARCINOMA On computerized tomography (CT) scan, the low attenuation mass replaces almost the full length of the pancreas and is associated with circular calcifications. (Courtesy of Dr. S. S. Siegelman, Baltimore, MD) More about this image found in COLLOID CARCINOMA On computerized tomography (CT) scan, the low attenuatio...

SOLID PSEUDOPAPILLARY NEOPLASM Figure 11-1 SOLID PSEUDOPAPILLARY NEOPLASM Left: Computerized tomography (CT) scan shows a heterogeneous, circumscribed tumor in the head of the pancreas (arrow). Right: Large mass with solid and irregular cystic regions in the pancreatic tail. More about this image found in SOLID PSEUDOPAPILLARY NEOPLASM Left: Computerized tomography (CT) scan sho...

EWING SARCOMA/PRIMITIVE NEUROECTODERMAL TUMOR Figure 13-33 EWING SARCOMA/PRIMITIVE NEUROECTODERMAL TUMOR This small round blue cell neoplasm forms a solid, cellular mass of primitive and undifferentiated cells. Infiltrated pancreatic parenchyma is seen at the periphery. More about this image found in EWING SARCOMA/PRIMITIVE NEUROECTODERMAL TUMOR This small round blue cell n...

HETEROTOPIC PANCREAS Figure 15-34 HETEROTOPIC PANCREAS From the serosal surface of the small intestine (A), a nodular, lobulated mass is evident. A second example in the stomach is umbilicated from the mucosal aspect (B). On cut section (C), there is a nodule of yellow tissue within the submucosa... More about this image found in HETEROTOPIC PANCREAS From the serosal surface of the small intestine (A), ...

MICROCYSTIC SEROUS CYSTADENOMA Figure 4-1 MICROCYSTIC SEROUS CYSTADENOMA Computerized tomography (CT) shows a low-attenuation well-demarcated cystic mass in the head of the pancreas with delicate septa and coarse central calcifications. (Courtesy of Dr. S. S. Siegelman, Baltimore, MD) More about this image found in MICROCYSTIC SEROUS CYSTADENOMA Computerized tomography (CT) shows a low-at...

INTRADUCTAL PAPILLARY MUCINOUS NEOPLASM Figure 6-9 INTRADUCTAL PAPILLARY MUCINOUS NEOPLASM Some ducts contain abundant exophytic masses (left), occasionally completely obliterating the duct lumen (right, arrow). (Right: Courtesy of Dr. E. Dankoweit-Timpe, Hannover, Germany) More about this image found in INTRADUCTAL PAPILLARY MUCINOUS NEOPLASM Some ducts contain abundant exophy...

INTRADUCTAL TUBULOPAPILLARY NEOPLASM Figure 6-55 INTRADUCTAL TUBULOPAPILLARY NEOPLASM Left: Back-to-back tubular glands form a nodular tumor mass nearly filling a dilated duct. Right: A rim of residual non-neoplastic ductal epithelium surrounds the periphery of an intraductal tumor nodule. More about this image found in INTRADUCTAL TUBULOPAPILLARY NEOPLASM Left: Back-to-back tubular glands for...

NON-HODGKIN LYMPHOMA Figure 13-36 NON-HODGKIN LYMPHOMA Left: Grossly, the lymphoma forms a solid, homogeneous fleshy tan mass similar to its appearance outside the pancreas. The lymphoma in this case compresses the bile duct. Right: Multinodular involvement of the pancreatic body and tail may re... More about this image found in NON-HODGKIN LYMPHOMA Left: Grossly, the lymphoma forms a solid, homogeneou...

AUTOIMMUNE PANCREATITIS, TYPE 1 Figure 15-12 AUTOIMMUNE PANCREATITIS, TYPE 1 Left: The head of the pancreas is filled by a dense fibrotic mass, which narrows the main pancreatic duct and thickens and obstructs the common bile duct (arrows), mimicking pancreatic ductal adenocarcinoma. Right: Invo... More about this image found in AUTOIMMUNE PANCREATITIS, TYPE 1 Left: The head of the pancreas is filled b...

INTRADUCTAL PAPILLARY MUCINOUS NEOPLASM WITH ASSOCIATED INVASIVE COLLOID-TYPE CARCINOMA Figure 6-31 INTRADUCTAL PAPILLARY MUCINOUS NEOPLASM WITH ASSOCIATED INVASIVE COLLOID-TYPE CARCINOMA A: Nodular mucin pools form a large mass. B: Microscopically, multiple mucin lakes containing strips of neop... More about this image found in INTRADUCTAL PAPILLARY MUCINOUS NEOPLASM WITH ASSOCIATED INVASIVE COLLOID-TY...

DUCTAL ADENOCARCINOMA Figure 7-5 DUCTAL ADENOCARCINOMA A: Gross cross-section of an adenocarcinoma in the body of the pancreas with a normal downstream pancreatic duct (left), a small cancer (center), and dilatation of the upstream pancreatic duct (right). B: Gross cross-section of an adenocarci... More about this image found in DUCTAL ADENOCARCINOMA A: Gross cross-section of an adenocarcinoma in the b...

CERVICAL MELANOMA Figure 3-71 CERVICAL MELANOMA A polypoid pigmented mass involves the ectocervix (A). Cellular epithelioid and spindled proliferation in the submucosa (B) is composed of atypical cells with evident pleomorphism and hyperchromasia at higher-power magnification (C). Diffuse nuclear... More about this image found in CERVICAL MELANOMA A polypoid pigmented mass involves the ectocervix (A). C...

CERVICAL DIVERTICULUM Figure 3-93 CERVICAL DIVERTICULUM A: A mass protudes from the lateral aspect of the cervical wall; the uterine corpus is located on the right. B: Upon opening, the mass has a cavity lined by smooth shiny mucosa and a patent communication with the endocervical canal; the pro... More about this image found in CERVICAL DIVERTICULUM A: A mass protudes from the lateral aspect of the ce...