An Unexpected Cause of Marathon Dyspnea: A Diagnostic Challenge in an Amateur Athlete

03 May 2026 : Case report Poland

Challenging differential diagnosis

Martyna Świerkowska^{ABDEF 1*}, Małgorzata Kurpaska

^{ADEF 2}, Paweł Krzesiński

^{ADE 2}, Katarzyna Piotrowicz

^{ADE 2}

DOI: 10.12659/AJCR.951838

Am J Case Rep 2026; 27:e951838

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Figure 1 Electrocardiogram findings during the: (A) first CPET and (B) second CPET. CPET – cardiopulmonary exercise test.

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