Elevated Troponin T in Immune-Checkpoint Inhibitor Myositis: A Case of Mistaken Myocarditis
Carissa Beaulieu1, Kai Yi Wu2, Anna K Füzéry3,4
1Division of Medical Oncology, Department of Oncology, University of Alberta, Cross Cancer Institute, Edmonton, Alberta, Canada.
JACC. Case Reports
|September 19, 2024
Abstract:
A patient with metastatic renal cell carcinoma on axitinib and pembrolizumab had elevated high-sensitivity cardiac troponin T and normal high-sensitivity cardiac troponin I with unremarkable cardiac investigations. A noncardiac cause (myositis) was the likely cause for cardiac troponin T elevation. Cardiac troponin I may be a more appropriate marker to support a myocarditis diagnosis with concurrent myositis.
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