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The agenesis of dorsal pancreas can be classified into two classes based on the morphological features: complete and partial agenesis. For the former one, the accessory pancreatic duct (also known as duct of Santorini) as well as the body and tail of the pancreas are missing. [1] For partial agenesis, the tail of the pancreas is still present. [1]
The pancreas is an organ of the digestive system and endocrine system of vertebrates. In humans, it is located in the abdomen behind the stomach and functions as a gland. The pancreas is a mixed or heterocrine gland, i.e., it has both an endocrine and a digestive exocrine function. [2] 99% of the pancreas is exocrine and 1% is endocrine.
One of these, larger than the rest, is sometimes given off near the tail of the pancreas; it runs from left to right near the posterior surface of the gland, following the course of the pancreatic duct, and is called the greater pancreatic artery.
The pancreas arises as two separate bodies, the dorsal pancreas and the ventral pancreas. The dorsal pancreas appears first, at around day 26, opposite the developing hepatic duct, and grows into the dorsal mesentery. The ventral pancreas develops at the junction of the hepatic duct and the rest of the foregut.
[3] [12] [34] The symptoms at diagnosis vary according to the location of the cancer in the pancreas, which anatomists divide (from left to right on most diagrams) into the thick head, the neck, and the tapering body, ending in the tail. Regardless of a tumor's location, the most common symptom is unexplained weight loss, which may be considerable.
A pancreatic injury is some form of trauma sustained by the pancreas. The injury can be sustained through either blunt forces, such as a motor vehicle accident, or penetrative forces, such as that of a gunshot wound. [1] The pancreas is one of the least commonly injured organs in abdominal trauma. [2]
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.
In human anatomy, the pancreatic veins consist of several small blood vessels which drain the body and tail of the pancreas, and open into the trunk of the great pancreatic vein. References [ edit ]