Time	Event
0 day	Extirpation of a benign thyroglossal duct cyst
0 day 10 h	Cardiogenic shock with severely impaired systolic left ventricular function
0 day 14 h	Coronary angiography: no evidence of relevant coronary artery disease
0 day 22 h	Admission to Heart Center Dresden (PaO2/FiO2 30 mmHg, 2.5 µg/kg/min norepinephrine
	Transthoracic echocardiography: suspected for a reverse takotsubo cardiomyopathy because of akinesia of all basal and middle segments of the left ventricle with preserved kinetics of the apex (left ventricular ejection fraction, LVEF 15%)
0 day 24 h	Implantation of Impella CP®
1 day 3 h	Implantation of veno-arterial extracorporeal membrane oxygenation (va-ECMO) due to deterioration of right ventricular function and persistent severe respiratory insufficiency
1 day 20 h	Computed tomography scan detects a lesion of the adrenal gland suspicious of a pheochromocytoma
6 days 10 h	End of intravenous norepinephrine administration
7 days 0 h	Explanation of Impella CP® and va-ECMO due to improved biventricular function (LVEF 40%, TAPSE 19 mm) and respiratory situation (PaO2/FiO2 150 mmHg)
8 days	Pheochromocytoma was confirmed by significantly increased plasma concentrations of metanephrine/normetanephrine
9 days	Initiation of non-specific α adrenergic receptor inhibition with phenoxybenzamine
28 days	Metaiodobenzylguanidine scintigraphy: no evidence for metastases of the pheochromocytoma or coincident paragangliomas
33 days	Laparoscopic excision of the pheochromocytoma
49 days	Discharge to rehabilitation with normalized biventricular function (LVEF 55%, TAPSE 25 mm)