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

Progressive Palmo Plantar Keratoderma of Greither

Today an old patient of mine came with his brother who had severe palmo plantar keratoderma since childhood which worsened after coming to Gulf. The most striking feature was the transgrediens. They said several members of their family have this problem. With my broken Hindi, I managed to elicit sufficient history to draw a crude pedigree chart. Based on the livid transgrediens, I came to a diagnosis of Progressive PPK (Greither disease or PPK of Sybert). I started him on 50% urea and 0.05% tretinoin. Before leaving my old patient (A in the chart) asked me about the chances of this condition developing in his children. What is your answer?
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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