A distal arthrogryposis characterized by inability to open the mouth fully and pseudocamptodactyly that has_material_basis_in heterozygous mutation in the MYH8 gene on chromosome 17p13.1.
synonyms:
OMIM:121070,
OMIM:158300,
121070,
Hecht-Beals syndrome,
mouth, inability to completely open, and short finger-flexor tendons,