oligohydramnios
<radiology> Prerenal, placental insufficiency, low-output cardiac failure, foetal demise, renal, renal agenesis, polycystic disease, multicystic dysplastic, postrenal, UPJ obstruction, megaureter, posterior urethral valves, urethral agenesis Notes: aetiology often unclear, leading to pulmonary hypoplasia, DRIP: demise, renal, IUGR, prematureure of membranes see also: Potter syndrome Cf: polyhydramnios