Skin Deep - Clinical & Cosmetic Dermatology Blog

Skin Deep is a blog for dermatologists and skin care professionals with focus on theoretical, cosmetic and aesthetic dermatology. This blog is associated with ‘Dermatologists Sans Borders’ one of the largest curated groups of skin care professionals on facebook. If you are looking for non-technical information, please visit

The Dark Side

Skin pigmentation can be an unwelcome spot in your relentless pursuit of flawless skin. Some causes may be rarer than others — but they can still be treated

IN MY last article I discussed common causes of facial pigmentation. Now I will discuss relatively rare causes of pigmentation before going into the treatment options. If you are overweight, you are likely to have a dark velvety patch behind your neck and underarms. Sometimes it can extend to your forehead and around the eyes. This condition, though harmless in most cases, has a long and scary name called ‘Acanthosis Nigricans’ (AN).

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About Me

As a Dermatologist and Informatician my research mainly involves application of bioinformatics techniques and tools in dermatological conditions. However my research interests are varied and I have publications in areas ranging from artificial intelligence, sequence analysis, systems biology, ontology development, microarray analysis, immunology, computational biology and clinical dermatology. I am also interested in eHealth, Health Informatics and Health Policy.


Bell Raj Eapen
Hamilton, ON