Metaphyseal chondrodysplasia Schmid type

Metaphyseal chondrodysplasia Schmid type is a type of chondrodysplasia associated with a deficiency of collagen, type X, alpha 1.^[2][3][4]

Schmid metaphyseal chondrodysplasia
Other names	MCDS[1]
This condition is inherited in an autosomal dominant manner.
Specialty	Orthopedic

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]