“…In another retrospectives single USA medical center in the 1990s, hemorrhagic pericarditis causes were etiologically diverse, the leading causes detected in the 96 patients were: iatrogenic 31%, Malignancy 26%, Complications of acute myocardial infarction 11%, idiopathic 10%, uremic 7% and M. tuberculosis was rare among the other causes (1 patient) which was diagnosed as a postmortem [4]. In addition, mixed connective tissues disease and infliximab were added to the causes in some reports [5][6] In the current case, we report a case of hemorrhagic pericarditis in a patient who was initially presented in Sudan with chest pain, prostration, and fever. Workup did not reveal the etiology of his illness, he presented to Al Khalidi hospital for evaluation, and hemorrhagic pericarditis due to M. tuberculosis was firmly diagnosed.…”