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July 1983

Pigmentation of Open ComedonesAn Ultrastructural Study

Author Affiliations

From the Department of Dermatology, University of Minnesota Medical School, Minneapolis.

Arch Dermatol. 1983;119(7):567-569. doi:10.1001/archderm.1983.01650310029005

• Ultrastructural examination of expressed "black" open comedones did not disclose any single melanosomes or melanosome complexes. If there is any melanin present in comedonal plugs, the amount is minimal, and it cannot be the source of the black color.

(Arch Dermatol 1983;119:567-569)