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Observation |

Becker Nevus of the Leg With Lipoatrophy

Gerd Gauglitz, MD1; Daniel S. Müller, MD1; Sonja Molin, MD1; Thomas Ruzicka, MD1; Thomas Herzinger, MD1
[+] Author Affiliations
1Klinik und Poliklinik für Dermatologie und Allergologie, Ludwig-Maximilians-University, Munich, Germany
JAMA Dermatol. 2013;149(9):1115-1116. doi:10.1001/jamadermatol.2013.4736.
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Extract

Becker nevus presents most commonly as a patchy hyperpigmentation with dark hairs on the upper arms or the shoulder girdle of male patients. Its prevalence has been determined at 0.52 percent in a large cohort of male French military recruits between the ages of 17 and 26 years.1 The male to female ratio of Becker nevus has been approximated to be about 4:1, although it may well be underdiagnosed in women owing to less intense pigmentation and milder or even absent hypertrichosis. An association with soft-tissue defects is common, manifesting most frequently as breast hypoplasia. Danarti et al2 defined a Becker nevus syndrome as the coincidence of Becker nevus and ipsilateral breast hypoplasia, scoliosis, spina bifida, or ipsilateral limb hypoplasia. Becker nevi of the lower extremity are exceedingly rare.

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Figure.
Dark Pigmentation and Lipoatrophy Extending From the Hip to the Ankle

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Becker nevus of the leg with lipoatrophy. JAMA Dermatol 2013;149(9):1115-6.
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