Colodny A H, Griscom N T
Urology. 1978 Mar;11(3):295-9. doi: 10.1016/0090-4295(78)90141-3.
About 25 per cent of neonatal ascites is caused by urinary tract disease. Opacification of the ascitic fluid by leakage of contrast material during cystography or intravenous urography may lead to striking relative radioluency of the liver. This phenomenon may be an important clue to the differential diagnosis of the etiology of neonatal ascites.