a. What does the picture show?

   b. How is this condition inherited?

   c. What other skin signs may be present?

   d. What eye signs may be present?

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This is the finger of a patient with epilepsy.

 a. What does the picture show?

Periungual fibroma in a aptient with tuberous sclerosis.

 b. How is this condition inherited?

Autosomal dominant with incomplete penetrance.

 c. What other skin signs may be present?

• Adenoma sebaceous (papules on the face)
• Ash-leaf lesions (areas of macular hypopigmentation)
• Shagreen patches (plaques of thickened connective tissue)

 d. What eye signs may be present?

Retinal and optic nerve head tumours mainly astrocytoma.

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