Rigel sign
**Rigel's sign,** a type of Ortner's symptom, in which pain occurs in the right hypochondrium and muscle tension when tapping the right costal arch and the corresponding position of the patient; register moans; the patient usually assumes the “Reaumur pose” with light pressure on the arch, this sign is negative; At the onset of the disease, the pain is not constant. In the initial stages, there is increased gas formation in the colon and palpation of gas there. In approximately 85% of patients, the first symptoms are intestinal phenomena, which led to the assumption of a colon infection. The most common indirect signs are inflammation of the colon, which is why it is so important to pay attention to the signs of this disease.
__General characteristics of pain__
Pain in the right upper quadrant of the abdomen, pain in the right side belong to the ***perihepatic zone***. That is, this is approximately 90% of all cases of pain in the right quadrant of the abdomen. Pain syndrome is characteristic of various diseases of the mesentery of the small intestine, bile ducts and their biliary tracts, pancreas, acute and chronic appendicitis and other conditions. The perihepatic zone is also located in the projection of the liver, bile ducts and biliary system, which is connected with surrounding organs - the gastrointestinal tract, gall bladder, and blood vessels. Based on the location and nature of the pain symptoms, one can determine the place of origin of the pathological process or disease.