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Revista da Sociedade Brasileira de Medicina Tropical
On-line version ISSN 1678-9849
ROCHA, Ademir et al. The pampiniform plexus of chronic chagasic patients: a histologic evaluation. Rev. Soc. Bras. Med. Trop. [online]. 2000, vol.33, n.5, pp. 413-416. ISSN 1678-9849. http://dx.doi.org/10.1590/S0037-86822000000500001.
The occurrence of Trypanosoma cruzi intracellular clusters and phlebitis was searched for on pampiniform plexus vein walls of chronic chagasic patients. For this purpose, 23 pairs of spermatic cords, epididymides and testes (17 from chagasic patients and 6 from non-chagasic controls) were obtained, at autopsy. Trypanosoma cruzi was investigated by immuno-histochemistry on slides obtained from several sections of the gonads and vessels of each case. Only discrete and focal undetermined chronic phlebitis was observed, with no parasites, in 5 chagasics (bilateral in 3) and 2 controls (c2: p < 0.10), and discrete mononuclear interstitial infiltration in the funiculi of 13 chagasics and 5 controls (c2: p < 0.75). In conclusion, on the contrary to that published regarding the supra-renal central veins, it seems that the hormonal environment provided by testosterone does not favor the infection of the gonadal vessel wall.
Keywords : Chagas' disease; Pampiniform plexus; Trypanosoma cruzi; Chronic phlebitis; Testosterone.