Fig. 15

A 57-year-old man presented with abdominal pain and diarrhoea of 10 days duration. On abdominal examination, there was a mobile mass in the right upper quadrant. The abdomen was soft and not distended. The patient was anemic. POCUS study (a) using a portable ultrasound machine and a small print convex array probe having a frequency of 3–5 MHz has shown an irregular mass in the right colon without a lumen just under the liver and 10 cm long (arrowheads). A clinical diagnosis of right colonic malignancy was suspected. CT scan with intravenous contrast (b) has shown the same findings (arrowheads). The patient had a right hemicolectomy. The tumour was confirmed to be a poorly differentiated colonic adenocarcinoma. L liver, K kidney