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Pathology · single question

Patients with ectodermal dysplasia characteristically present with:

  1. Multiple supernumerary teeth
  2. Hyperplastic gingiva
  3. Dry eyes
  4. Excessive sweating
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Correct answer: C. Dry eyes

Dry eyes result from lacrimal gland hypoplasia (ectodermal origin). Combined with reduced sweating (anhidrosis), patients risk overheating.
  • A. ❌ Multiple supernumerary teeth are associated with cleidocranial dysplasia.
  • B. ❌ Gingival hyperplasia is associated with medications (phenytoin, CCBs), not ectodermal dysplasia.
  • C. ✅ CORRECT – Dry eyes from lacrimal gland hypoplasia; lacrimal glands are ectodermal derivatives.
  • D. ❌ Hypohidrosis (reduced sweating) is characteristic, NOT excessive sweating.

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