Abnormal liver morphology Scalloped appearance of liver surface Scalloping of surface of liver and spleen A lesion associated with pseudomyxoma peritonei whosetypical CT appearance is scalloping of the surface of the liver and spleen caused by loculated accumulations of mucin, which distinguishes mucin from fluid ascites. The mucinous material is similar in density to water. There are also islands of higher attenuation due to scattered solid elements and calcification within mucinous material. Scalloping of the surface of the liver and spleen