Naevus

Question 1

Description

Answer 1

• pigmented area on iris / retina

• equivalent of large freckle

Question 2

Differential diagnosis

Answer 2

Iris malignant melanoma

Question 3

Signs

Answer 3

• pigmented area on iris surface

• can be flat or slightly raised

• usually regular in shape

Question 4

Symptoms

Answer 4

None

Question 5

Pathogenesis

Answer 5

• accumulation of pigmented cells on the anterior of the iris

• melanocytes clumping together

Question 6

Management

Answer 6

• none, patient reassured

• should be monitored with pictures

• change in size / character could indicate malignant melanoma