collagen 6-related congenital muscular dystrophy intermediate collagen VI-related muscular dystrophy https://www.malacards.org/card/intermediate_collagen_vi_related_muscular_dystrophy MEDGEN:1853152 GARD:0027027 Orphanet:646113 MONDO:0958353 UMLS:C5816698 A form of congenital muscular dystrophy characterized by congenital weakness, hypotonia, proximal joint contractures, marked hyperlaxity of the distal joints, attainment of independent ambulation which is subsequently lost and uniform respiratory insufficiency during the teenage years.