Non-choroidal yellow melanoma showing positive staining with Sudan Black consistent with the presence of lipofuscin: a case report

Dermatology Practical & Conceptual

Marie Hélène Jegou Penouil¹  Catherine Segretin²  Jean-Yves Gourhant³  Cliff Rosendahl⁴  David Weedon⁵ 

[1] Cabinet de Dermatologie, Blanquefort, France;Cabinet d’anatomopathologie, Talence, France;Centre de Dermatologie, Nemours, France;School of Medicine, The University of Queensland, Australia;Sullivan Nicolaides Pathology, Brisbane, Australia;

关键词: dermatoscopy;    dermoscopy;    dermatopathology;    yellow melanoma;    hypomelanotic melanoma;    lipofuscin;   

DOI  :  10.5826/dpc.0402a09

来源: DOAJ

【 摘 要 】

A case of a predominantly yellow primary superficial spreading melanoma arising on the back of a 44-year-old woman is presented. Possible causes of the clinical and dermatoscopic yellow color are discussed. Staining with the histochemical stain, Sudan Black, revealed a differential uptake compared to a closely matched control melanoma. We speculate that the clinical and dermatoscopic yellow color could be due to the presence of increased amounts of the pigment lipofuscin, which is known to produce subtle orange color in some choroidal melanomas.

【 授权许可】

Unknown