Intraperitoneal carcinomatosis: incidence of its radiographic findings and description of a new sign

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Abstract
Forty documented cases of intraperitoneal carcinomatosis were studied to examine the incidence of common consistently useful radiographic signs. Twenty-four (60%) were radiographically positive. Ten of 19 Ba enema examinations (53%) revealed metastatic implant(s) on the colon. This proved to be the most common finding of intraperitoneal carcinomatosis. Other radiographic findings included ascites in 14 patients (35%) and small bowel obstruction in 5 (13%). A new sign of intraperitoneal carcinomatosis, termed fixed colon sign, is discussed. Seven of 19 cases (37%) with lower GI [gastrointestinal] series demonstrated this sign. Ba enema examination has a high yield in demonstrating intraperitoneal carcinomatosis.