CT differentiation of tuberculous peritonitis and peritoneal carcinomatosis.

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Abstract
The purpose of this study was to determine the potential of CT for distinguishing tuberculous peritonitis from peritoneal carcinomatosis in 135 clinically or pathologically proven cases.Abdominal CT scans in 135 patients of tuberculous peritonitis (n = 42) and peritoneal carcinomatosis (n = 93) with documented omental, mesenteric, or peritoneal pathology were retrospectively reviewed. CT findings were evaluated in each group of patients for the morphologic appearance of mesenteric or omental abnormalities as well as for visualization of the spleen and liver, the lymph nodes, and ascites. Statistical comparisons using multivariate logistic regression analysis were performed to adjust for the differences in CT findings between the two groups.Mesenteric changes were more commonly seen in patients with tuberculous peritonitis (98%) than in patients with peritoneal carcinomatosis (70%) (p < .01). Micronodules (less than 5 mm in diameter) were noted in approximately one half of patients with tuberculous periton...