[Severe myocardial damage caused by leptospirosis. Report of a fatal case in Mexico].

Chagasic cardiomyopathy is a common disease in Latin America, however similar clinical pictures exist that can be confused with this, as they give negative results to the tests that detects T. cruzi, like non Chagasic rural endemic chronic cardiopathy, highly common in Venezuela. Using histopathology techniques, "idiopathic cardiomyopathy" is frequently found as the cause of death when the etiology of this disease is not known.

[Leptospira, does it simulate or cause leukemia?].

Two cases of chronic leptospirosis in bicitopenic and pancitopenic patients, respectively, with mucocutaneous and visceral bleedings were presented. They were diagnosed myeloblastic leukemia M3 and acute lymphoblastic leukemia L2 by bone marrow aspiration and they were treated as such at the hematology department of a general hospital. Both patients died after one of them had considerably improved on being treated with sodium crystalline penicillin at high doses.