Uncovering the diagnosis.

The article presents a case study of a 63-year-old African-American woman presented with progressive dyspnoea for the duration of two weeks. Topics discussed include the elimination of the possibility of viral pericarditis after the absence of essential changes to the electrocardiography (ECG) conducted to the patient, the presence of mycobacterium avium complex (MAC) to the sputum samples, and the diagnosis for cardiac sarcoidosis to the patient.