Elastoderma

Elastoderma is an extremely rare acquired disorder of the skin characterized by localized areas of loose, sagging, and redundant skin that can be easily stretched and hangs in folds. Unlike inherited connective tissue disorders such as cutis laxa or Ehlers-Danlos syndrome, elastoderma is not present from birth but develops over time, typically in adulthood. The condition is caused by an abnormal accumulation of elastin fibers (elastosis) in the dermis, which leads to the characteristic lax, pendulous skin. The affected areas most commonly involve the neck, upper arms, trunk, or other localized regions of the body. The hallmark clinical feature is well-demarcated patches of skin that are excessively stretchable and hang loosely, often resembling a pouch or sac. The skin in affected areas may appear wrinkled or aged. Importantly, elastoderma is typically localized rather than generalized, which helps distinguish it from systemic connective tissue disorders. There is no associated systemic involvement, and internal organs are generally not affected. The condition is not associated with significant morbidity beyond the cosmetic and functional concerns related to the redundant skin. There is no established medical treatment for elastoderma. Management is primarily supportive and may include surgical excision of the redundant skin for cosmetic or functional improvement, although recurrence after surgery has been reported in some cases. Given the rarity of the condition, with only a small number of cases described in the medical literature, there are no standardized treatment guidelines. Patients should be evaluated to exclude other causes of cutis laxa, including inherited forms and secondary causes such as inflammatory or autoimmune conditions.

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