Hydrops of the fetal membranes at the 8th month of pregnancy.
Excess fluid accumulates especially in the allantoic sac during the last three months of pregnancy, likely due to placental dysfunction caused by maternal-fetal incompatibility.
Differential diagnosis: ascites, ruminal tympany, ruminal overload, peritonitis.
The prognosis is unfavorable; therefore, termination of pregnancy by administering prostaglandins is recommended.
