congenital nervous system disorder multiple pterygium-malignant hyperthermia syndrome https://rarediseases.info.nih.gov/diseases/3361/malignant-hyperthermia-arthrogryposis-torticollis https://www.malacards.org/card/contractures_congenital_torticollis_and_malignant_hyperthermia https://www.malacards.org/card/multiple_pterygium_malignant_hyperthermia_syndrome froster-Iskenius-Waterson syndrome froster-Iskenius-Waterson-Hall syndrome MEDGEN:347490 Malignant hyperthermia-arthrogryposis-torticollisis an extremely rare arthrogryposis syndrome, described in only two pairs of siblings from two unrelated families to date, and characterized by the association of arthrogryposis, congenital torticollis, dysmorphic facial features (i.e. asymmetry of the face, myopathic facial movements, ptosis, posteriorly rotated ears, cleft palate), progressive scoliosis and episodes of malignant hyperthermia. There have been no further descriptions in the literature since 1988. malignant hyperthermia-arthrogryposis-torticollis syndrome MESH:C565679 malignant hyperthermia - arthrogryposis - torticollis UMLS:C1857576 Orphanet:2215 GARD:0003361 malignant hyperthermia arthrogryposis torticollis MONDO:0009012 OMIM:217150 arthrogryposis multiplex congenita obsolete syndrome or malformation associated with head and neck malformations hereditary neurological disease