What is tuberculosis verrucosa cutis?
What is tuberculosis verrucosa cutis?
Tuberculosis verrucosa cutis (TVC); also known as warty tuberculosis, anatomist’s warts, or prosector’s warts; is an indolent, warty plaque-like form of paucibacillary cutaneous tuberculosis, resulting from inoculation of Mycobacterium tuberculosis into the skin of a previously infected patient, with moderate to high …
What is tuberculous Gumma?
Tuberculous gumma is a form of cutaneous TB caused by haematogenous dissemination of M tuberculosis. Clinically, it is difficult to differentiate this form from other pyogenic infections such as syphilis, pyoderma gangrenosum, atypical mycobacterial lesions and some fungal infections.
What do tuberculosis lesions look like?
Tuberculosis Verrucosa Cutis. The skin lesions are usually solitary and manifest as painless, violaceous or brown–red, indurated warty plaques that range from 1 to 5 cm in diameter. Although ulceration is uncommon, fissures that exude purulent drainage or keratinous material may occur.
How is skin TB diagnosed?
Testing for TB Infection
- The TB skin test is performed by injecting a small amount of fluid (called tuberculin) into the skin on the lower part of the arm.
- A person given the tuberculin skin test must return within 48 to 72 hours to have a trained health care worker look for a reaction on the arm.
Can tuberculosis cause sores?
Primary cutaneous inoculation with TB in a previously uninfected host will result in a TB chancre and regional lymphadenopathy. Skin lesions develop 2–3 weeks after inoculation. Gummas are subcutaneous cold abscesses that form fistulae and ulcers. They can occur on the trunk, extremities, and head.
What is a Tuberculid?
Tuberculids are cutaneous lesions that arise as a reaction to hematogenous spread of M. tuberculosis. The pathogenesis of these reactive manifestations is not well understood. Typical for tuberculids are evidence of manifest or past tuberculosis and lesions that respond well to treatment with tuberculostatic drugs.
