| Lichen scrofulosorum | |
|---|---|
| Other names | Tuberculosis cutis lichenoides |
| Specialty | Infectious diseases  |
Lichen scrofulosorum is a rare tuberculid that presents as a lichenoid eruption of minute papules in children and adolescents with tuberculosis. The lesions are usually asymptomatic, closely grouped, skin-colored to reddish-brown papules, 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]
See also
[edit]References
[edit]- ^ In: Burns T, Breatnach S, Cox N, Griffiths C, editors. (2004). Rook's textbook of dermatology. 7th ed. Oxford: Blackwell Science. pp. 28.1–28.39.
{{cite book}}:|author=has generic name (help)CS1 maint: multiple names: authors list (link) - ^ Chong, Lai‐Yin; Lo, Kuen‐Kong (1995). "CUTANEOUS TUBERCULOSIS IN HONG KONG: A 10‐YEAR RETROSPECTIVE STUDY". International Journal of Dermatology. 34 (1). Int J Dermatol: 26–29. doi:10.1111/j.1365-4362.1995.tb04372.x. ISSN 0011-9059.
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Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction