Diseases of the gastrointestinal tract (gastroenterology)

Anomalies of duodenal development: causes, symptoms, diagnosis, treatment

Anomalies in the development of the duodenum are rare. Atresia, congenital stenosis and membranous membrane fusion of the duodenum are detected on the first day after birth: abundant vomiting, frequent regurgitation and other symptoms, high intestinal obstruction.

Syndrome of insufficiency of intestinal absorption: causes, symptoms, diagnosis, treatment

Syndrome of insufficiency of intestinal absorption - a symptom complex, which is characterized by a disorder of absorption in the small intestine of one or several nutrients and a violation of metabolic processes.

Syndrome of insufficiency of digestion

Syndrome of insufficiency of digestion is a symptom complex associated with a violation of digestion of nutrients due to a deficiency of digestive enzymes (fermentopathy).

Carcinoid

Carcinoid (argentaffinoma, chromaffinoma, carcinoid tumor, tumor of APUD-system) is a rare neuroepithelial hormone-active tumor producing excess serotonin. Carcinoids are formed in intestinal crypts from intestinal argentaffinocytes (Kulchitsky cells), which belong to the diffuse endocrine system.

Vipoma (Werner-Morrison syndrome)

Vipoma is a tumor of the APUD system that produces an excessive amount of the vasoactive intestinal polypeptide. In 90% of cases, the tumor is localized in the pancreas, in 10% - has an extra-pancreatic localization (in the sympathetic trunk region). Approximately half the time the tumor is malignant.

APUD tumors (APUD) -system: causes, symptoms, diagnosis, treatment

The APUD system is a diffuse endocrine system that unites cells found in virtually all organs and synthesizes biogenic amines and numerous peptide hormones. It is an actively functioning system that supports homeostasis in the body.

Dysbacteriosis of the intestine

Dysbacteriosis of the intestine - a change in the qualitative and quantitative composition of the bacterial flora, caused by a dynamic violation of the microecology of the intestine as a result of disruption of adaptation, violation of the protective and compensatory mechanisms of the body.

Amyloidosis of the intestine

Amyloidosis of the intestine is a disease of the intestine (an independent disease or "second disease"), caused by the deposition of amyloid in its tissues.

Ischemic colitis

With ischemia of the large intestine, a significant number of microorganisms inhabiting it contribute to the development of inflammation in the intestinal wall (even transient bacterial invasion is possible). Inflammatory process, caused by ischemia of the wall of the colon, further leads to the development of connective tissue in it and even the formation of fibrous stricture.

Acute mesenteric ischemia

Acute mesenteric ischemia - a violation of blood circulation in the intestine, caused by embolism, thrombosis or a decrease in blood flow. This leads to the release of mediators, inflammation and, ultimately, a heart attack. The nature of abdominal pain does not correspond to the data of a physical examination.

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