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Article
August 1988

Reticulated Truncal Pigmentation

Author Affiliations

USA; USA; Walter Reed Army Medical Center, Washington, DC

Arch Dermatol. 1988;124(8):1273-1274. doi:10.1001/archderm.1988.01670080085026
Abstract

REPORT OF A CASE  A 14-year-old black boy presented with an asymptomatic eruption associated with darkening of skin color of eight months' duration. The eruption began on his middle chest and back and gradually spread to involve the lower chest, abdomen, lower back, axillae, and neck. The boy was otherwise in excellent health. A diagnosis of tinea versicolor was made, but therapy with topical 2.5% selenium sulfide lotion nightly for three weeks did not improve the lesions.On physical examination, he was a well-developed slender male. The eruption consisted of patches of dark brown discoloration with fine keratotic papules distributed over the back, chest, abdomen, neck, and axillae. The patches were confluent on the middle back and chest and were arranged in a reticulated pattern at the periphery (Fig 1).Results of laboratory tests, including complete blood cell count, urinalysis, measurement of serum urea nitrogen, glucose, serum electrolytes, and total

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