has part has part occurs in occurs in characteristic of inheres in has modifier ossification Abnormal metatarsal morphology Abnormal metatarsal ossification 2008-04-04T11:59:00Z Abnormal maturation of long bone of foot UMLS:C4021543 HP:0008371 Abnormal ossification involving metatarsal bones Any abnormal process of ossification of the metatarsal bones, which normally are each ossified from two centers: one for the body, and one for the head (metatarsal II,III,IV, and V) and one for the body and one for the base (metatarsal I). The ossification process begins in the center of the body about the ninth week, and extends toward either extremity. The center for the base of the first metatarsal appears about the third year, and the centers for the heads of the other bones between the fifth and eighth years. They join the bodies between the eighteenth and twentieth years. Abnormal foot bone ossification quality abnormal metatarsal bone