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The head, body, and tail of the pancreas: The stomach is faded out in this image to show the entire pancreas, of which the body and tail lie behind the stomach, and the neck partially behind. Axial CT image with IV contrast and added color: Cross lines towards top left surround a macrocystic adenocarcinoma of the pancreatic head.
Histopathologic examination of the pancreas reveals a characteristic lymphoplasmacytic infiltrate of CD4- or CD8-positive lymphocytes and IgG4-positive plasma cells, and exhibits interstitial fibrosis and acinar cell atrophy in later stages. At the initial stages, typically, there is a cuff of lymphoplasma cells surrounding the ducts but also ...
Bacteria involved in causing and treating cancers. Cancer bacteria are bacteria infectious organisms that are known or suspected to cause cancer. [1] While cancer-associated bacteria have long been considered to be opportunistic (i.e., infecting healthy tissues after cancer has already established itself), there is some evidence that bacteria may be directly carcinogenic.
A pancreatic cyst is a fluid filled sac within the pancreas. They can be benign or malignant. X-ray computed tomography (CT scan) findings of cysts in the pancreas are common, and often are benign. In a study of 2,832 patients without pancreatic disease, 73 patients (2.6%) had cysts in the pancreas. [3] About 85% of these patients had a single ...
The pancreatic duct is generally regarded as abnormally enlarged if being over 3 mm in the head and 2 mm in the body or tail on CT scan. [9] Pancreatic duct or parts of pancreatic duct can be demonstrated on ultrasound in 75 to 85% of people. [10] Pancreatic ductal carcinoma is a common form of pancreatic cancer.
A pancreatic tumor is an abnormal growth in the pancreas. [1] In adults, almost 90% are pancreatic cancer and a few are benign. [1] Pancreatic tumors are rare in children. [1] Classification is based on cellular differentiation (ductal, acinar, neuroendocrine, other) and gross appearance (intraductal, cystic, solid). [1]
Aggressive PanNET tumors have traditionally been termed "islet cell carcinoma". PanNETs are quite distinct from the usual form of pancreatic cancer, the majority of which are adenocarcinomas, which arise in the exocrine pancreas. Only 1 or 2% of clinically significant pancreas neoplasms are PanNETs. [5]
CT scan in a patient with acinar cell carcinoma. The disease is more common in men than women and the average age at diagnosis is about 60. [2] Symptoms are often non-specific and include weight loss. A classic presentation, found in around 15% of cases includes subcutaneous nodules (due to fat necrosis) and arthralgias, caused by a release of ...