[Overview of endemic treponematoses].

Endemic treponematoses including yaws, bejel, pinta are distinguished from venereal syphilis on the basis of epidemiological characteristics and clinical manifestations. They cannot be differentiated by morphological and serological methods. A few minor genetic differences have been identified among the subspecies (Treponema pallidum sp.

[Anatomo-clinical forms of skin tuberculosis. (Dermatology service-Regional Hospital Center of Bouake, Ivory Coast)].

Tuberculosis of the skin is not exceptional in Africa South of the Sahara. The different ways of contamination of the skin by the tubercular bacillus and the level of immunologic reaction of the host account for the clinical polymorphisms. The bacillus is detected with difficulty, and the classical anatomo-pathological feature of tuberculoid granuloma is rarely complete: A classification based on physiopathological, clinical, bacteriological and histological criteria is an help to diagnosis.