An accumulation of fluid in the abdomen.
The finding of isolated fetal ascites has been associated with intrauterine
infections (cytomegalovirus, parvovirus, syphilis, toxoplasmosis, listeria,
upper or lower gastrointestinal obstruction, perforated bowel (meconium
genitourinary tract abnormalities, trisomy 21 (Down syndrome) , Turner
syndrome, and early hydrops.
Often the cause of the ascites is