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Colloid milium
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Colloid milium

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Contributors: Tara Mahar MD, Lowell A. Goldsmith MD, MPH
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Synopsis

Colloid milium is a rare degenerative condition related to sun exposure. It is marked by multiple, domed, flesh-colored papules developing on sun-exposed skin and the finding of dermal colloid by light microscopy. There are three forms: adult-onset, nodular, and juvenile.

The juvenile form is inherited, whereas sun exposure is implicated in both the adult and nodular forms. It occurs more frequently in men and individuals with lighter skin phototypes. The adult form more commonly occurs in the aged population.

The lesions of colloid milium tend to reach a peak within three years, after which few new papules occur. The lesions do not resolve and occasionally may be pruritic.

In addition to sunlight, petroleum, phenols, and hydroquinones have been associated with rare occurrences of colloid milium.

Codes

ICD10CM:
L57.8 – Other skin changes due to chronic exposure to nonionizing radiation

SNOMEDCT:
402684002 – Colloid milium

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Last Updated: 09/19/2017
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Colloid milium
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Colloid milium : Smooth papule, Sun-exposed distribution, History of severe sunburns
Clinical image of Colloid milium
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