A 65-year-old man was referred to our hospital for evaluation of stuttering chest pain for 10 days, and he was a common worker. There was no positive finding from the relevant physical examination. He has no medical, family, and psychosocial history including co-morbidities, and relevant genetic information. His electrocardiogram showed T-wave inversion over leads V1 to V4 (Figure ​1). Coronary angiography showed 90% stenosis in the mid-left anterior descending coronary artery (LAD), which was stented (Figure 2). T-wave still inversion over leads V1 to V4 after the percutaneous coronary intervention (PCI) (Figure ​3). The patient discharged after the PCI in 5 days and recharged in the hospital because of a palpation. His electrocardiogram demonstrated ventricular tachycardia (Figure ​4), and severe hypertension, remarkable blood pressure fluctuation between 224/76 and 70/50 mm Hg. Although several antihypertensive drugs were used, ventricular tachycardia still occurred on him for 2 times, each was preceded by a period of blood pressure fluctuation and burst out concomitantly at the peak of a hypertension crisis. The patient felt abdominal pain and his abdominal ultrasound showed suspicious right adrenal gland tumor. Enhanced computed tomography of adrenal gland conformed that there was a tumor in right adrenal gland accompanied by an upset level of aldosterone (Figure 5). The tumor was removed by laparoscope, and pathological examination showed pheochromocytoma (Figure ​6). After the surgery, the blood pressure turned normal gradually. There was no T-wave inversion in lead V1-V4 (Figure ​7).