Chancre
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Through Gram-negative bacteria and Bacteria
Chancres are also associated with the African trypanosomiasis (sleeping sickness), surrounding the area of the tsetse fly bite.
Similarities with chancroid
Similarities between the conditions chancre and chancroid:
- Both originate as pustules at the site of inoculation, and progress to ulcerated lesions
- Both lesions are typically 1–2 cm in diameter
- Both lesions are caused by sexually transmissible organisms
- Both lesions typically appear on the genitals of infected individuals
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Differences from chancroid
- Chancres can occur in the pharynx as well as on the genitals. Not to be confused with condylomata lata, which is seen in secondary syphilis.
Etymology
The word "chancre" (French pronunciation: ) means "little ulcer" in Old French. Related to the English "canker", they both come from the Latin cancer, meaning "crab", which is a translation from the Greek word καρκίνος (karkínos), also meaning "crab".