Lichen scrofulosorum: Difference between revisions
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{{Infobox medical condition | |||
| name = Lichen scrofulosorum | |||
| synonyms = Tuberculosis cutis lichenoides | |||
| specialty = [[Dermatology]] | |||
| symptoms = Small, firm, skin-colored or reddish-brown papules | |||
| complications = [[Scarring]] | |||
| onset = Usually in children and young adults | |||
| duration = Chronic | |||
| causes = [[Mycobacterium tuberculosis]] infection | |||
| risks = [[Tuberculosis]] exposure, [[immunocompromised]] state | |||
| diagnosis = [[Skin biopsy]], [[tuberculin skin test]] | |||
| differential = [[Lichen planus]], [[Lichen nitidus]], [[Prurigo nodularis]] | |||
| treatment = [[Antitubercular therapy]], [[topical corticosteroids]] | |||
| prognosis = Good with treatment | |||
| frequency = Rare | |||
}} | |||
'''Lichen Scrofulosorum''' is a skin disease associated with [[tuberculosis]]. It is a rare form of [[tuberculid]] that is usually seen in children and adolescents with a high degree of [[tuberculin]] sensitivity. | '''Lichen Scrofulosorum''' is a skin disease associated with [[tuberculosis]]. It is a rare form of [[tuberculid]] that is usually seen in children and adolescents with a high degree of [[tuberculin]] sensitivity. | ||
== Symptoms == | == Symptoms == | ||
The disease is characterized by a sudden eruption of asymptomatic, minute, lichenoid papules, usually on the trunk and proximal extremities. The papules are closely grouped, and have a predilection for the abdomen, chest, back, and buttocks. The face, palms, and soles are usually spared. | The disease is characterized by a sudden eruption of asymptomatic, minute, lichenoid papules, usually on the trunk and proximal extremities. The papules are closely grouped, and have a predilection for the abdomen, chest, back, and buttocks. The face, palms, and soles are usually spared. | ||
== Causes == | == Causes == | ||
Lichen Scrofulosorum is caused by the hematogenous dissemination of [[Mycobacterium tuberculosis]]. It is a form of cutaneous tuberculosis and is seen in patients with a strong immune response to the infection. | Lichen Scrofulosorum is caused by the hematogenous dissemination of [[Mycobacterium tuberculosis]]. It is a form of cutaneous tuberculosis and is seen in patients with a strong immune response to the infection. | ||
== Diagnosis == | == Diagnosis == | ||
The diagnosis of Lichen Scrofulosorum is made based on the clinical presentation and histopathological findings. A skin biopsy shows non-caseating granulomas in the dermis. The Mantoux test is strongly positive, and there may be evidence of internal tuberculosis. | The diagnosis of Lichen Scrofulosorum is made based on the clinical presentation and histopathological findings. A skin biopsy shows non-caseating granulomas in the dermis. The Mantoux test is strongly positive, and there may be evidence of internal tuberculosis. | ||
== Treatment == | == Treatment == | ||
The treatment of Lichen Scrofulosorum involves the administration of anti-tubercular drugs. The skin lesions usually resolve with treatment of the underlying tuberculosis. | The treatment of Lichen Scrofulosorum involves the administration of anti-tubercular drugs. The skin lesions usually resolve with treatment of the underlying tuberculosis. | ||
== See Also == | == See Also == | ||
* [[Tuberculosis]] | * [[Tuberculosis]] | ||
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* [[Skin biopsy]] | * [[Skin biopsy]] | ||
* [[Mantoux test]] | * [[Mantoux test]] | ||
[[Category:Dermatology]] | [[Category:Dermatology]] | ||
[[Category:Infectious diseases]] | [[Category:Infectious diseases]] | ||
[[Category:Tuberculosis]] | [[Category:Tuberculosis]] | ||
{{stub}} | {{stub}} | ||
{{No image}} | {{No image}} | ||
Latest revision as of 03:01, 4 April 2025
| Lichen scrofulosorum | |
|---|---|
| Synonyms | Tuberculosis cutis lichenoides |
| Pronounce | N/A |
| Specialty | Dermatology |
| Symptoms | Small, firm, skin-colored or reddish-brown papules |
| Complications | Scarring |
| Onset | Usually in children and young adults |
| Duration | Chronic |
| Types | N/A |
| Causes | Mycobacterium tuberculosis infection |
| Risks | Tuberculosis exposure, immunocompromised state |
| Diagnosis | Skin biopsy, tuberculin skin test |
| Differential diagnosis | Lichen planus, Lichen nitidus, Prurigo nodularis |
| Prevention | N/A |
| Treatment | Antitubercular therapy, topical corticosteroids |
| Medication | N/A |
| Prognosis | Good with treatment |
| Frequency | Rare |
| Deaths | N/A |
Lichen Scrofulosorum is a skin disease associated with tuberculosis. It is a rare form of tuberculid that is usually seen in children and adolescents with a high degree of tuberculin sensitivity.
Symptoms[edit]
The disease is characterized by a sudden eruption of asymptomatic, minute, lichenoid papules, usually on the trunk and proximal extremities. The papules are closely grouped, and have a predilection for the abdomen, chest, back, and buttocks. The face, palms, and soles are usually spared.
Causes[edit]
Lichen Scrofulosorum is caused by the hematogenous dissemination of Mycobacterium tuberculosis. It is a form of cutaneous tuberculosis and is seen in patients with a strong immune response to the infection.
Diagnosis[edit]
The diagnosis of Lichen Scrofulosorum is made based on the clinical presentation and histopathological findings. A skin biopsy shows non-caseating granulomas in the dermis. The Mantoux test is strongly positive, and there may be evidence of internal tuberculosis.
Treatment[edit]
The treatment of Lichen Scrofulosorum involves the administration of anti-tubercular drugs. The skin lesions usually resolve with treatment of the underlying tuberculosis.
