abnormal urinary bladder morphology abnormal urinary bladder fundus morphology 2012-11-15T03:11:19Z MP:0011785 MPheno.ontology abnormal fundus vesicae morphology abnormal urinary bladder base morphology any structural anomaly of the base or posterior surface of the urinary bladder, which contains the trigone of the bladder and the outlet where urine empties through the internal urethral orifice csmith