Schmid_metaphyseal_dysplasia
Metaphyseal chondrodysplasia Schmid type
Medical condition
Metaphyseal chondrodysplasia Schmid type is a type of chondrodysplasia associated with a deficiency of collagen, type X, alpha 1.[2][3][4]
Unlike other "rickets syndromes", affected individuals have normal serum calcium, phosphorus, and urinary amino acid levels. Long bones are short and curved, with widened growth plates and metaphyses.[5]
It is named for the German researcher F. Schmid, who characterized it in 1949.[6]