PMC6374786_01
Electrocardiogram performed on first visit. The U waves are seen in precordial derivations (arrows). In V2-V3-V4, they are fused to the end of the T waves. In V5-V6, inverted T waves are followed by subtle U waves. The pseudo-prolonged QT interval actually results from the measurement of a long QU interval. HR = heart rate; bpm = beats per minute; QT = QT interval; QTc = corrected QT interval; ms = milliseconds.
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fig1
An EKG showed sinus bradycardia, a prolonged QT interval, and prominent U waves (Figure 1).
Macroscopic aspect of villous adenoma.
CRIGM2019-3104187.002.jpg
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fig2
The patient underwent transanal endoscopic microsurgery (TEMS) successfully (Figure 2).