Thursday, March 28, 2019

WhiteBoard Summary: Lichen Planus

Hi guys, let’s talk dermatology.

Lichen Planus is a papulosquamous disease that affects skin, nails and mucous membrane, caused by cell-mediated immunity of unknown aetiology. Here’s a (not-so-white) whiteboard summary.

[Please click on the image to enhance it]


- Morphological variants can be hypertrophic, atrophic, erosive, follicular, annular, vesicular, bullous, actinic or pemphigoid.
- Lichenoid reaction can be caused by drugs (thiazides, antimalarials, penicillamine, gold) and even in Graft vs. Host disease.
- Those with steroid resistance/ intolerance are treated by hydroxyquine, methotrexate or sulfasalazine.
- Psoralens can also be used along with UV-A radiation.
- Patient education regarding self-limiting and recurrent nature of the disease is important.


- Ashish Singh

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