| Lichen scrofulosorum | |
|---|---|
| Other names | Tuberculosis cutis lichenoides |
| Specialty | Infectious diseases  |
Lichen scrofulosorum is a rare tuberculid that presents as a lichenoid eruption of minutepapules in children and adolescents with tuberculosis. The lesions are usually asymptomatic, closely grouped, skin-colored to reddish-brownpapules, often perifollicular and are mainly found on the abdomen, chest, back, and proximal parts of the limbs. The eruption is usually associated with a strongly positive tuberculin reaction.[1]Of the three tuberculids, the incidence of lichen scrofulosorum was found to be the lowest (2%) in a large study conducted in Hong Kong. This highlights its rarity and significance as an important marker of undetected tuberculosis.[2]
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