MULTIPLE MINUTE DIGITATE KERATOSES
By Gary M. White, MD
Multiple minute digitate hyperkeratoses (MMDH) the a rare, benign appearance of multiple keratotic spines.
- Other terms that have been used include post-irradiation digitate keratoses, disseminated spiked hyperkeratosis, minute aggregate keratoses, transient post-inflammatory digitate keratoses, and familial disseminated piliform hyperkeratosis.
MMDH presents with numerous digitate keratoses across the trunk and limbs with sparing of the face, palms, and soles. The keratoses are skin-colored, rod-shaped, non-follicular, 1 to 5 mm in length, 0.3 to 2 mm in diameter, and arise from otherwise normal skin.
No treatment is needed. Topical keratolytics may be tried.
A 59-year-old Caucasian woman presented with a 5-year history of the development of hundreds of pruritic skin-colored to pale yellow, spiny keratotic projections, distributed across her chest, back, and shoulders. The keratoses were 0.2-0.5 mm wide and 0.5-3.0 mm tall and cylindrical in shape. The adjacent skin was clear. Dermatology Online Journal 17(5)
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