polyneuropathy-hand defect syndrome https://rarediseases.info.nih.gov/diseases/2589/hamanishi-ueba-tsuji-syndrome https://www.malacards.org/card/aplasia_of_extensor_muscles_of_fingers_unilateral_with_generalized_polyneuropathy MEDGEN:349240 polyneuropathy, hand defect congenital aplasia of the extensor muscles of the fingers and thumb associated with generalized polyneuropathy OMIM:207740 Orphanet:2926 GARD:0002589 congenital aplasia of the extensor muscles of the fingers and thumb associated with generalised polyneuropathy MONDO:0008809 Hamanishi Ueba Tsuji syndrome Hamanishi-Ueba-Tsuji syndrome MESH:C535624 aplasia of extensor muscles of fingers, unilateral, with generalised polyneuropathy Digital extensor muscle aplasia-polyneuropathy is a rare, hereditary motor and sensory neuropathy characterized by flexion deformities of the thumb and fingers, sensory deficit in the hand and polyneuropathic electrophysiologic findings in the limbs. Operation on the hands reveals extensor muscles and their tendons to be absent or hypoplastic. There have been no further descriptions in the literature since 1986. UMLS:C1859752 hereditary motor and sensory neuropathy hereditary sensory and autonomic neuropathy