By Gary M. White, MD

Multiple minute digitate hyperkeratoses (MMDH) the a rare, benign appearance of multiple keratotic spines.


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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