Urinary ascites is an uncommon condition mainly associated with trauma or surgical-induced uri- nary bladder perforation. It is known that polyuricsyndromes, including psychogenic polydipsia and cen- tral or nephrogenic diabetes insipidus (NDI), may induce dilation of the urinary tract and rarely chronic renal damage. We report the exceptional clinical case of a young man hospitalized for the study of pro- gressive massive ascites after a lumbar trauma, who had a personal and familiar history of polyuria-polydipsia.
