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Lichen scrofulosorum: Cutaneous manifestation of tuberculous lymphadenitis
Santha Velappan Rakhesh1, Pallithottangal Kunju Moideen Hidayathullah2, Aysha Khader3
1Department of Dermatology, Iqraa International Hospital and Research Centre, Calicut, Kerala, India.
Abstract:
Cutaneous tuberculosis (TB) known as tuberculid forms 1%-1.5% of all extrapulmonary manifestation of TB. Tuberculids result from a hypersensitivity reaction to an extracutaneous source of Mycobacterium tuberculosis in individuals with high immunity and can be difficult to diagnose. Lichen scrofulosorum (LS) is a rare form of tuberculid predominantly seen in children and young adults; we report a case of an 8-year-old boy evaluated for fever and mediastinal lymphadenopathy in whom the skin lesions, LS, served as an important clue for the diagnosis of tuberculous lymphadenitis.
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