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Article
August 1978

Reticulate Pigmented Anomaly of the FlexuresDowling Degos Disease, A New Genodermatosis

Author Affiliations

From the Institute of Dermatology, London, and the Department of Dermatology, Watford and Hemel Hempstead General Hospitals, England.

Arch Dermatol. 1978;114(8):1150-1157. doi:10.1001/archderm.1978.01640200004002
Abstract

• Acquired reticulate pigmentation of the flexures developed in ten patients. Additional features in some cases were pitted scars near the angles of the mouth and scattered dark comedone-like lesions on the neck (dark dot follicles). The disease affects both sexes, usually develops in early adult life, and is slowly progressive. The abnormality is characterized by pigmented filiform epidermal downgrowths closely resembling an adenoid seborrheic wart, but similar proliferations also develop around the variably dilated pilosebaceous follicles. The occurrence of the anomaly in siblings and in mother and daughter in two families suggests the condition in a new genodermatosis. Reticulate pigmented anomaly of the flexures bears a spurious clinical resemblance to acanthosis nigricans and, thus, the recognition of this new genodermatosis should spare patients undergoing unnecessary investigations to exclude visceral malignancy.

(Arch Dermatol 114:1150-1157, 1978)

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