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case_images: Localized high-density calcium deposition was observed in the aortic arteries (A) and coronary arteries (B). The white arrow in (A) shows the calcification in the artery wall of aorta; the white arrow in (B) indicates the calcification in coronary artery wall.
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case_images: Localized high-density calcium deposition was observed in the coronary and aortic arteries (Figure 1A and B). 
case_images: (a) The ECG showed sinus rhythm (HR:98 bpm), frequent atrial premature beats occurring in pairs, and some exhibiting a biphasic rhythm. (January 23, 2023 14:34:13); (b) the ECG showed sinus rhythm (HR 132 bpm), partial short-term ventricular tachycardia, and irregular intra-chamber conduction (January 30, 2023, 10:28:29); (c) the ECG showed rapid atrial fibrillation and ST segment depression (ST (I II III aVL aVF horizontal depression >= > 0.05 mV). (January 30, 2023 13:40:13); (d) a bedside chest X-ray revealed decreased lung transparency on the left and increased lung texture on January 30, 2023; "R": right side of the patient; (e) the ECG showed rapid atrial fibrillation (HR: 177 bpm) with ST-T changes (ST-II III V4 V5 V6) horizontally inclined, upward and downward > 0.05 mV T (I) wave low and flat). (January 30, 2023 19:11:23); (f) the ECG showed sinus rhythm (HR: 87 bpm), frequent atrial premature beats occurring in pairs, and a T wave at a low level. (February 1, 2023, 16:17:58).
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case_images: The electrocardiogram (ECG) profile of the patient upon admission is shown in Figure 2a.  The ECG (Figure 2b) showed sinus rhythm (HR 132 bpm), partial short-term ventricular tachycardia, and irregular intra-chamber conduction. Intravenous amiodarone was provided to maintain sinus rhythm after emergency consultation with a cardiovascular specialist, and we detected fast atrial fibrillation (HR 200 bpm) on the ECG (Figure 2c). Diaphragm and costophrenic angles were standard, as were the size and shape of the cardiac shadow (Figure 2d). A re-examination of the patient's ECG on January 30 evening (Figure 2e) revealed rapid atrial fibrillation (heart rate of 177 bpm), ST-T elevation, ST (II, III, V4, V5, V6 leads) with a horizontal or sloping depression greater than 0.05 mV, and low T waves (I teach). Multiple ECGs (Figure 2f) were performed from January 31 to February 1, and amiodarone was discontinued once sinus rhythm was recovered.
case_images: Dynamic evolutions in this patient's critical laboratory tests following hospitalization. Inflammatory indexes (white blood cell, WBC; procalcitonin, PCT) and acute cardiac infarction index (TnI) peaked on January 31, 2023. They rapidly declined to approximate baseline levels within four days, which were in accordance with the D-dimer change curve. Changes in serum amylase were significant 48 h after the patient experienced stomach pain and diarrhea five times in one night without fever (from January 30 to February 1, 2023).
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case_images: The dynamic of laboratory tests in this patient are shown in Figure 3. 
case_images: Several high-density calcifications in the splenic arteries (A-C), and a wedge-shaped region of low density within the spleen (B and C) were observed on an abdominal CT.
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