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Skin infections
Published in Rashmi Sarkar, Anupam Das, Sumit Sethi, Concise Dermatology, 2021
Shankila Mittal, Rashmi Sarkar
Tuberculides may develop as hypersensitivity to the tubercle bacillus.Lichen scrofulosorum: lichenoid eruptions of papules predominantly in children often perifollicular develop on abdomen, chest, and back (Figure 3.17).Papulonecrotic tuberculide: papules arise and develop central necrosis with a black crust.Erythema induratum: uncommon disorder, which in many cases appears to fulfil the criterion of being a response to tuberculous infection. It is characterized by the development of plaque-like areas of induration and necrosis on the lower calves and occurs predominantly in young women.
Skin infections
Published in Ronald Marks, Richard Motley, Common Skin Diseases, 2019
Tuberculides may develop as hypersensitivity to the tubercle bacillus. In papulonecrotic tuberculide, papules arise and develop central necrosis with a black crust. Erythema induratum is an uncommon disorder, which in many cases appears to fulfil the criterion of being a response to tuberculous infection. It is characterized by the development of plaque-like areas of induration and necrosis on the lower calves and occurs predominantly in young women.
Common dermatological conditions in the HIV patient
Published in South African Family Practice, 2019
Cutaneous tuberculosis is divided into three categories as follows: Inoculation tuberculosis, a primary infection of the skin that is introduced by an exogenous source, e.g. lupus vulgaris and tuberculous chancre.Secondary tuberculosis, either by contiguous or haematogenous spread from a primary focus that leads to involvement of the skin, e.g. scrofuloderma.Tuberculids which are hypersensitivity reactions to M. tuberculosis components, e.g. papulonecrotic tuberculid, erythema induratum of Bazin and lichen scrofulosorum.
Extrapulmonary tuberculosis
Published in Expert Review of Respiratory Medicine, 2021
Surendra K Sharma, Alladi Mohan, Mikashmi Kohli
Various clinical types of cutaneous TB, such as lupus vulgaris, scrofuloderma, tuberculosis verrucosa cutis occur. Tuberculids (lichen scrofulosorum; papulonecrotic tuberculid; erythema induratum; and erythema nodosum), TB chancre, miliary TB of the skin have also been described. Following bacille Calmette-Guerin (BCG) vaccination, localized and generalized skin complications have also been described [2].