Cholestasis syndrome in a comorbid patient: diagnostic difficulties

The purpose of the review article is to demonstrate generalized ideas on the classification and diagnosis of cholestasis syndrome of various etiologies, to consider the possibility of using laboratory and instrumental research methods in real clinical practice in a comorbid patient. The main provisions. According to the mechanism of development, cholestasis is conditionally divided into intrahepatic and extrahepatic, as well as a mixed type. Extrahepatic cholestasis develops with mechanical obstruction of the main extrahepatic or main intrahepatic ducts. Intrahepatic cholestasis as a result of a number of diseases, such as acute viral hepatitis, primary biliary cholangitis, drug damage to the liver, amyloidosis of the liver. In real clinical practice, a combination of several etiological factors leading to the development of cholestasis is possible in a comorbid patient. A clinical observation is given when, in a patient with gallstone disease, melanoma and ulcerative colitis, after excluding a number of possible causes of cholestasis, autoimmune cross syndrome, autoimmune hepatitis and primary sclerosing cholangitis (PSC), was diagnosed, which allowed the initiation of immunosuppressive therapy with 48 mg corticosteroid (per day) and the preparation of ursodeoxycholic acid (UDCA) exhol at a dose of 1500 mg per day. Regardless of the cause of intrahepatic cholestasis, UDCA remains the drug for the treatment of first-line cholestatic lesions. Conclusion. Only a consistent methodological approach, taking into account all the possible causes of cholestasis, can lead to a correct diagnosis and timely adequate treatment in each case.

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