(A) An 18-month-old child with McKusick-type metaphyseal chondrodysplasia. Notice the characteristic light, sparse hair; disproportionate short stature; pectus excavatum; and varus deformities of the lower extremities.
(B) Mildly increased lumbar lordosis, flexion contractures of the elbows, and expansion of the wrists are also part of the deformity.
Reproduced with permission from: Sponseller PD, Ain MC. The Skeletal Dysplasias. In: Lovell and Winter's Pediatric Orthopaedics, 6th ed, Morrissy RT, Weinstein SL (Eds), Lippincott Williams & Wilkins, Philadelphia 2006. Copyright © 2006 Lippincott Williams & Wilkins.
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