Related Experiment Video
Updated: Jul 7, 2026
Minimally Invasive Isolated Limb Perfusion (MI-ILP) for Locally Advanced Melanomas and Sarcomas of the Extremity
Published on: January 31, 2025
Becker nevus on the lower limb: case report and review of the literature
Raed Alhusayen1, Nordau Kanigsberg, Robert Jackson
1The Ottawa Hospital Civic Campus, Division of Dermatology, Ottawa, ON, Canada. alhusayen@gmail.com
Background:
Becker nevus is a hamartoma with brown hyperpigmentation and hypertrichosis that usually affects young males. It has a predilection for the upper half of the trunk and proximal upper extremity.
Objective:
This is a case report of a 38-year-old male with a Becker nevus without hypertrichosis on the lower limb and a review of the literature.
Results:
Including our case report, 12 cases of Becker nevus on the lower limb were identified in the English literature (8 males and 4 females). It has never been reported below the knee. In males, the lesion was not associated with other anomalies, and all but two showed hypertrichosis (six of eight). In 50% (two of four) of women, it was associated with localized lipoatrophy. In one woman, it presented without hypertrichosis.
Conclusion:
The presence of Becker nevi on the lower limb is unusual, and hypertrichosis is not always a feature. Larger studies are required to look into the true prevalence of this presentation and its prognostic value as a marker for other anomalies.
