06 December 2021
: Case report 
When Zebras Collide: A Case of Synchronous Wolff-Parkinson-White Syndrome and Pheochromocytoma
Rare coexistence of disease or pathology
Kaiwen Zhu
12EF, Stacey Solin3EF, Madeleine S. Deming3EF*
DOI: 10.12659/AJCR.934137
Am J Case Rep 2021; 22:e934137
Figure 2. Baseline electrocardiogram tracing of the patient, detailing a shortened P–R interval (representative examples noted with red brackets) with associated diffuse pre-excitation currents, or delta waves (representative examples noted with blue arrows) consistent with the Wolff-Parkinson-White (WPW) pattern.