Lesions Sing the Blues

If you’ve seen one bluish purple skin lesion … you haven’t necessarily seen them all. Can you differentiate these pigmented patches?

Question 1 of 4

A 3-week-old infant is evaluated for a lesion that has been present on the sacral area since birth. The child is otherwise healthy, and a pediatrician diagnosed the lesion as benign.

A 3-week-old infant is evaluated for a lesion that has been present on the sacral area since birth. The child is otherwise healthy, and a pediatrician diagnosed the lesion as benign. However, the parents, who are both Native American, are nonetheless alarmed by thoughts of trauma or skin cancer. The lesion is round, located on the lower left sacral area, and uniformly purple. The surface is totally macular and measures about 2.5 cm. Its margins are uniform, and no underlying induration or other changes can be palpated. Dermatoscopic examination shows uniform faint, bluish pigment.

Match the diagnosis to the photo by letter

Ota nevus

Blue nevus

Congenital dermal melanocytosis

Glomangioma

Clinician Reviews. 2019 June;29(6):15e-16e

This quiz is not accredited for CME.

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