[Lymphogranuloma venereum (LGV). Biological diagnosis].

In his thesis inspired on Favre's works, Phylactos (in 1922) synthetized the knowledges prevailing then on the disease which was characterized in 1913 by Durand, Nicolas, and Favre. He distinguished this disease from tuberculosis, Hodgkin's disease, pestis, syphilis, and chancroid, thus establishing the basic elements of the clinical diagnosis of lymphogranuloma venereum. In 1924, Gamma described the intracellular inclusions, thus giving rise to the biological diagnosis. In 1925, Frei proved that the heated pus filtrate obtained from buboes induced a specific intradermal reaction. In 1927, Gay Prieto described the elementary corpuscles.