|MadSci Network: Medicine|
Hi Joni, Thanks for your message. Both seborrhoeic keratoses and sebaceous hyperplasia are benign skin conditions that are seen very frequently in general practice. Sebarrhoeic keratoses is also known as basal cell papillomas, and are pathologically non-invasive, benign over-proliferation of the cells in the basal layer of the skin. Sebaceous hyperplasia, as its name implies, is the increased proliferation of cells lining the sebaceous glands of the skin, also a benign skin condition. No one completely understand their aetiology and hence no reliable preventive measures can be suggested, but it is generally believed that both genetic and environmental factors play a role in their formation. Since they are both benign conditions, there is no need for invasive treatment. For cosmetic reasons, however, minor procedures are available. For more information, you can see this website: http://www.s kinsite.com/index_dermatology_diseases.htm I hope this helps:-) Joshua Chai School of Clinical Medicine University of Cambridge, UK
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