Fig. 4From: Evaluation of transabdominal ultrasound after oral administration of an echoic cellulose-based gastric ultrasound contrast agent for gastric cancerAdvanced gastric cancer. a and b Examination involving transabdominal ultrasound scans after oral administration of an echoic cellulose-based gastric ultrasound contrast agent showing hypoechoic thickening of the gastric wall with superficial ulceration (a, longitudinal section; b, cross section). c Gastroscopic examination showing the lesion. Arrow, pointing at the lesionBack to article page