An 8-year-old boy presents with well defined annular lesion over the buttock with central scarring that is gradually progressive over the last 8 months. The diagnosis is
Correct Answer: Lupus Vulgaris
Description: B i.e. Lupus vulgarisAnnular plaque with central scarring - Typically seen in Lupus vulgaris.Most common sites in India = Buttocks and face.Cause:The underlying focus of TB (bone, joint or lymph node).Contiguous extension of disease from underlying affected tissue.By hematogenous or lymphatic spread.Arise after exogenous inoculation.A complication of BCG vaccination.Features & manifestations:Cutaneous TB more commonly affects buttocks & extremities rather than the face.Such a pattern is usually due to reinoculation and may relate to playing without clothing or shoes.Lesions:Becomes flat plaques with a serpiginous or polycyclic outline & a smooth surface or psoriasiform scaling: there may be erosions, ulceration, and scarring.Hyperophic forms appear as a soft mass with a nodular, hyperkeratotic surface.
Category:
Skin
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now