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Image Number 1370 (Collagenoma)

Papules,skin coloured

Diagnosis: Collagenoma

Site: Thigh

Sex: M

Age: 24


Description: Flesh-colored papules and plaques.

Submitted by: Nameer Al-Sudany

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Differential Diagnosis


This patient presented with multiple, asymptomatic, skin-colored, grouped papules and plaques involving the lower part of the thigh of two years duration. Skin biopsy showed normal epidermis overlying increased deposition of dense collagen bundles in the lower dermis. Collagenomas or connective tissue nevi are hamartomas that can be divided into familial, associated with tuberous sclerosis, eruptive and other isolated variants.

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