Infantile osteopetrosis displays several facial deformity possibilities. Which deformity is not a facial deformity of infantile osteopetrosis?
  1. Broad face
  2. Hypertelorism
  3. Frontal bossing
  4. Peeked nose
Explanation
Answer: D - Infantile osteopetrosis displays several facial deformity possibilities that do not include peeked nose. The disease facial deformities include broad face, hypertelorism, frontal bossing, and flattened nose. Additionally, the patient usually suffers delayed tooth eruption, blindness, facial paralysis, anemia, deafness, increased susceptibility to infections, and hepatosplenomegaly. Beyond blood transfusions and antibiotics, there is no defined treatment and death is likely before adulthood.
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