Source:http://linkedlifedata.com/resource/umls/id/C0927230
FMA: Cavitated organ in which its unshared parts surround one continuous anatomical space. Examples: stomach, urinary bladder, esophagus, uterine tube.,UWDA: Cavitated organ in which its unshared parts surround one continuous anatomical space. Examples: stomach, urinary bladder, esophagus, uterine tube.