EN
Introduction. Abdominal ultrasound is considered an initial examination of the the gastrointestinal tract. The case is presented in which ultrasound (US) detected a ‘pseudokidney’ sign that enabled the tentative diagnosis of a colonic neoplastic lesion. Case report. A 78-year-old patient was admitted to the Department of Internal Diseases due to weight loss and anaemia. US demonstrated abnormalities in the form of intestinal wall thickening with a hyperechoic centre. This finding led to the tentative diagnosis of a neoplastic lesion. After further diagnostic procedures, i.e. colonoscopy and histopathological examination of biopsy specimens, the patient was diagnosed with colon adenocarcinoma. Conclusions. In many cases, experienced US radiologists can initially assess the intestinal wall and other organs, which effectively directs towards further diagnostic management, hence accelerates the diagnosis and decision to apply a given therapeutic option or otherwise