Abstract:Cutaneous tuberculosis (CTB) represents only 1%–2% of extrapulmonary forms of tuberculosis (TB). CTB can present in the isolation or coexist with pulmonary and disseminated forms of TB. Pathologically confirmed lupus vulgaris (LV) coexisting with lichen scrofulosorum with disseminated TB is presented and discussed. A 12-year-old boy presented with 2 years history of slowly progressive facial plaque and multiple skin colored papules on the neck. Tuberculin skin test was positive with a reading of > 20 mm. Histo… Show more
“…Other types of cutaneous TB, such as scrofuloderma, lupus vulgaris, TB gumma, and TB verrucosa cutis,[ 37 , 38 ] as well as other tuberculids such as papulonecrotic tuberculids, erythema induratum can present along with lichen scrofulosorum. [ 39 , 40 ] Notably, transformation from papulonecrotic tuberculids to lichen scrofulosorum has been seen.…”
Section: Clinical Features Including Atypical Manifestationsmentioning
Tuberculids are a group of dermatoses with tuberculoid histology and the absence of tubercle bacilli. They are considered to be hypersensitivity reactions to circulating
Mycobacterium tuberculosis (M. tb)
or its antigens in individuals with good immunity. The objective of the review is to provide a detailed literature review of all available articles on tuberculids in the past 10 years and provide an update on epidemiology, etiopathogenetic mechanisms, clinical manifestations, and treatment. A search was performed on PubMed using the keywords lichen scrofulosorum, papulonecrotic tuberculid, erythema induratum, and erythema nodosum tuberculosis for all articles, with no restrictions on age, gender, or nationalities. An update on tuberculids, including some new concepts in pathogenesis, atypical presentations, new investigative modalities, and treatments are reviewed.
“…Other types of cutaneous TB, such as scrofuloderma, lupus vulgaris, TB gumma, and TB verrucosa cutis,[ 37 , 38 ] as well as other tuberculids such as papulonecrotic tuberculids, erythema induratum can present along with lichen scrofulosorum. [ 39 , 40 ] Notably, transformation from papulonecrotic tuberculids to lichen scrofulosorum has been seen.…”
Section: Clinical Features Including Atypical Manifestationsmentioning
Tuberculids are a group of dermatoses with tuberculoid histology and the absence of tubercle bacilli. They are considered to be hypersensitivity reactions to circulating
Mycobacterium tuberculosis (M. tb)
or its antigens in individuals with good immunity. The objective of the review is to provide a detailed literature review of all available articles on tuberculids in the past 10 years and provide an update on epidemiology, etiopathogenetic mechanisms, clinical manifestations, and treatment. A search was performed on PubMed using the keywords lichen scrofulosorum, papulonecrotic tuberculid, erythema induratum, and erythema nodosum tuberculosis for all articles, with no restrictions on age, gender, or nationalities. An update on tuberculids, including some new concepts in pathogenesis, atypical presentations, new investigative modalities, and treatments are reviewed.
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