Lichen nitidus: overview, causes, features, histology and management
Lichen nitidus: overview, causes, features, histology and management Uncommon eruption of multiple tiny discrete skin coloured shiny papules, often in clusters. Favours flexors, genitalia and trunk. May occur in Koebner phenomenon. On histo the infiltrate is dense & well circumscribed to 2-3 dermal papillae. Epidemiology Rare hard to determine Some authors suggest Females more than Males, and may be associated with Down Syndrome Familial Lichen Nitidus extremely rare Pathogenesis no causative infective agent has been identified Some authors suggest association with Crohn's (bollocks) Clinical Features Numerous tiny discrete skin coloured uniform papules, may have a shiny surface. Pruritus uncommon May exhibit a variety of hues from flesh coloured, erythematous, violaceous, to yellow-brown Nail involvement in 10% of pts with pitting, rippling, and longitudinal ridging May exhibit Koebner phenomenon May have generalised, or perforating form (rare) Disclaimer: This video is for education and entertainment purposes only and does not constitute medical advice. The information available on this channel is of a general nature and does not offer specific diagnosis or advice regarding treatment, and is not to be used as an alternative to a healthcare professional’s diagnosis and treatment of any person/animal. Only a physician or other licensed healthcare professional are able to determine the requirement for medical assistance to be given to a patient. Please seek the advice of your physician or other licensed healthcare provider if you have any questions regarding a medical condition. Images disclaimer: Images are used from the public domain and used in accordance with Fair Use laws and are intended for educational/teaching purposes only. #dermatology #residency #usmle #skincare #internalmedicine #health #doctor #medicaleducation #healthcare #internalmedicineeducation #medicalschool #skin #acne #beauty #cosmetics #skinhealth #dermatologist #skintreatment
