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Malakoplakia (from Greek Malako "soft" + Plako "plaque") is a rare inflammatory condition which makes its presence known as a papule, plaque or ulceration that usually affects the genitourinary tract. [1]: 274 However, it may also be associated with other bodily organs.
Octreotide is an analog of the peptide hormone somatostatin, which inhibits the production of the growth hormone as well as numerous peptide hormones of the gastrointestinal system, including insulin, glucagon, pancreatic polypeptide, gastric inhibitory polypeptide, and gastrin.
Pancreatic neuroendocrine tumors may arise in the context of multiple endocrine neoplasia type 1, Von Hippel–Lindau disease, neurofibromatosis type 1 (NF-1) or tuberose sclerosis (TSC) [31] [32] Analysis of somatic DNA mutations in well-differentiated pancreatic neuroendocrine tumors identified four important findings: [33] [7]
There are about 1 million islets distributed throughout the pancreas of a healthy adult human. While islets vary in size, the average diameter is about 0.2 mm. [5]:928 Each islet is separated from the surrounding pancreatic tissue by a thin, fibrous, connective tissue capsule which is continuous with the fibrous connective tissue that is interwoven throughout the rest of the pancreas.
Immunohistochemistry for pancreatic polypeptide in a mouse pancreas, 200× Pancreatic polypeptide ( PP ) is a polypeptide secreted by PP cells in the endocrine pancreas . It is a hormone and it regulates pancreatic secretion activities, and also impacts liver glycogen storage and gastrointestinal secretion.
The xanthogranulomatous type of inflammation is most-commonly seen in pyelonephritis and cholecystitis, although it has more recently been described in an array of other locations including bronchi, lung, endometrium, vagina, fallopian tubes, ovary, testis, epididymis, stomach, colon, ileum, pancreas, bone, lymph nodes, bladder, adrenal gland, abdomen and muscle. [5]
PP-cells produce pancreatic polypeptide which is a regulator of endocrine and exocrine secretions in the pancreas and gut. Delta cells which produce somatostatin which is a growth hormone inhibiting hormone and has important function in the regulation of hormone production from the anterior pituitary gland.
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