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DefinitionCongenital? absence of both forearm and hand is a rare birth condition. In this condition, the baby is born with the upper arm present, but the...
DefinitionCongenital? myopathy 1A is a genetic muscle condition that usually starts at birth or early childhood. “Congenital?” means present from birth, and “myopathy” means a muscle...
DefinitionInsertional polydactyly is a birth difference where a person has an extra finger or toe that sits “in the middle” of the hand or foot, instead...
DefinitionIntercalary polydactyly (also called central polydactyly or mesoaxial polydactyly) means a baby is born with an extra finger or toe that appears between the normal digits,...
DefinitionMesoaxial polydactyly (also called central polydactyly) means that a person is born with an extra finger or toe in the middle part of the hand or...
DefinitionMesoaxial polydactyly of the fingers means there is an extra finger in the middle part of the hand, usually next to the index, middle, or ring...
DefinitionMirror hand, also called ulnar dimelia, is an extremely rare birth difference where the bones on the “little-finger side” of the forearm (the ulna and the...
DefinitionMyoseptum inflammation? is a thin sheet of strong connective tissue that lies between blocks of muscle fibers. It acts like a wall or partition inside the...
DefinitionMyoseptumitis is a medical word that means inflammation? of the myoseptum, which is the thin wall of tissue inside a muscle that separates small bundles of...
DefinitionParoxysmal exercise-induced dystonia (PED) is a rare brain movement problem. It causes short attacks of abnormal movements when a person does long or strong exercise, like...
DefinitionPeroneal muscular atrophy? is an older name for Charcot–Marie–Tooth disease (CMT). It is a group of inherited (genetic) nerve diseases that slowly damage the peripheral nerves...
