DOI: 10.36347/sjams.2020.v08i01.055

Pages: 293-295

Introduction: Lichen Planus is a mucocutaneous disease with idiopathic etiology. Lichenoid drug eruption/Drug induced lichen planus an uncommon adverse effect of several drugs. Lichen planus can be distinguished from Lichenoid drug eruption by clinical and microscopic features. Case report: 62 year old male presented with left lung consolidation with effusion .Analysis of pleural fluid was consistent with koch’s etiology. Patient was started on fixed dose regimen of anti-tubercular therapy .Patient developed rash all over the body initially over legs and later on progressed to entire body involving oral mucosa, lips and scalp. On examination purplish to blakish plaques mostly over extremities, and also scalp, buccal mucosa, lips involved. A differential diagnosis of Psoriasiform lichen planuS/Psoriasis/Prurigo nodularis was made and skin biopsy was sent for histopathological examination which showed lichen planus. Dermatologist consultation was taken and patient was started on topical steroids and antihistamines .Anti tubercular therapy was continued and completed the course for 6months.patient is in a verge of relief of symptoms and hyperpigmentation.