Pathology · single question

A patient with ectodermal dysplasia has xerostomia and hypodontia. Another expected feature of this condition is:

  1. Hyperhidrosis (excessive sweating)
  2. Hypohidrosis/anhidrosis (reduced sweating)
  3. Thick, coarse scalp hair
  4. Hyperdontia (extra teeth)
Show answer and explanation

Correct answer: B. Hypohidrosis/anhidrosis (reduced sweating)

  • A. Sweating is reduced, not increased.
  • B. Correct. Hypohidrotic ectodermal dysplasia features reduced sweat glands → heat intolerance, plus sparse hair and missing teeth.
  • C. Hair is typically sparse/fine, not thick.
  • D. The dental defect is missing teeth (hypodontia), not extra teeth.

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