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Case Reports
. 1976 Aug 15;32(8):970-1.
doi: 10.1007/BF01933916.

Phaeomelanic pigments from a human melanoma

G Prota, H Rorsman, A M Rosengren, E Rosengren
Case Reports

Phaeomelanic pigments from a human melanoma

G Prota et al. Experientia. .

Abstract

The pigments in melanomas from 2 patients were studied with regard to solubility and chemical composition. Melanoma pigment from a patient with red-blonde hair was alkali-soluble and contained 9 or 10% sulfur and was thus of phaeomelanic type. Melanoma pigment from a patient with red-brown hair was insoluble in 0.2 N NaOH. Its sulfur content was 6%. This pigment was eumelanic with regard to solubility characteristics but the sulfur content was higher than previously observed for eumelanin.

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References

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