Abstract
Congenital melanocytic nevus (CMN) is a pigmented skin lesion common in newborns and is known also as “birth marks”. At birth, they may manifest on any part of the body; pose clinical dilemma; and be a source of anxiety for parents. The clinical significance varies with size, location and risk of cancerous changes. CMN is rare and occurs in 1% of infants at birth [1]. We present two cases with large nevi presented on the lower parts of the body situated on the lower limb.
Highlights
Congenital melanocytic nevus (CMN) is a pigmented skin lesion common in newborns and is known as “birth marks”
In Case 1, a well demarcated dark brown skin patch on the right lower limb extending from the knee on dorsal aspect and posteriorly from popliteal fossa to the ankle measuring 11.5 cm in length covering the whole lower limb with some satellite lesion on the buttock and left elbow
CMN occurs in 1% of newborns at birth
Summary
Congenital melanocytic nevus (CMN) is a pigmented skin lesion common in newborns and is known as “birth marks”. They may manifest on any part of the body; pose clinical dilemma; and be a source of anxiety for parents. The clinical significance varies with size, location and risk of cancerous changes.
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