has part has part has_part characteristic of part of has modifier abnormal fat pad morphology abnormal infrapatellar fat pad morphology 2018-10-19T10:38:06Z MP:0030880 MPheno.ontology abnormal Hoffa fat pad morphology any structural anomaly of the partly adipose wedge-shaped mass formed in the anterior region of the knee that is intracapsular but extrasynovial (and thus extra-articular); it extends superiorly from the patella and alar folds to the tibia and infrapatellar bursa and is delimited anteriorly by the patellar ligament and joint capsule and posteriorly by the synovial membrane morphology abnormal infrapatellar fat pad