In the context of Syphilis (Treponema pallidum), which lesion is the hallmark of the tertiary stage?
Show answer and explanation
Correct answer: Gumma
A gumma is a soft, non-cancerous growth or granulomatous lesion characteristic of tertiary syphilis. They are most commonly found in the liver, bones, and testes, and represent a delayed hypersensitivity response to the spirochete.
Keep practicing
More Bacterial Infections questions
- What is the primary virulence factor of Bacillus anthracis that allows it to evade the host immune system?
- Diphtheria toxin causes tissue necrosis and pseudomembrane formation in the pharynx by which mechanism?
- Which form of Leprosy is associated with a strong Th1 cell-mediated immune response and few visible bacilli on biopsy?
- A patient presents with a painless, indurated ulcer on the genitals (Chancre). Histology shows an infiltrate of plasma cells and endarterit…
- What is the most common cause of bacterial endocarditis in a patient with previously damaged or prosthetic heart valves?
- Which bacterium is known for causing 'Whooping Cough' by paralyzing the ciliary escalator via tracheal cytotoxin?