Primary cardiac hemangioma: a report of two cases and literature review

Figures

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  Fig. 1. Prenatal echocardiogram at 37 + 5 weeks of gestation. (a) A cystic-solid tumor occupying the right atrium measuring 15*17 mm (arrow). (b) Pericardial effusion detected (arrowhead). RA: Right atrium

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  Fig. 2. Electrocardiogram during the clinical course of Patient 1. (a) ECG on the second day after birth showing sinus rhythm. (b) ECG on the second day after the surgery showing atrial flutter with a rate of 400 bpm and 2:1 atrioventricular conduction. (c) ECG on the day of discharge from the hospital showing sinus rhythm

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  Fig. 3. Intraoperative findings, immunostaining, and postoperative echocardiogram of the tumor of Patient 1. (a) Macroscopic image of the tumor attached to the upper partition of the atrial septum and part of the free wall. (b) The excised specimen revealing a nodule measuring 2.0*2.0*1.0 cm. (c) Immunostaining of CD31, DES, and α smooth muscle actin. (d) Postoperative echocardiogram showing radical resection of the tumor. RA: Right atrium. LA: Left atrium. RV: Right ventricle. LV: Left ventricle

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  Fig. 4. Echocardiogram of the tumor of Patient2. (a) a 12.2*8.6 mm tumor located in the left atrium (white arrow). (b) The computed tomography angiography (CTA) showed the mass located between the anterior part of the atrial septum and the anterior mitral valve (black arrow). LA: Left atrium

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  Fig. 5. Intraoperative findings, immunostaining, and postoperative echocardiogram of the tumor of Patient 2. (a) Macroscopic image of the tumor located below the atrial septum and beneath the endocardium in the Koch triangle area. (b) The excised specimen revealing a 10 mm mass with multiple nodules. (c) Immunostaining of CD31, DES, and α smooth muscle actin. (d) Postoperative echocardiogram showing radical resection of the tumor. RA: Right atrium. LA: Left atrium. RV: Right ventricle. LV: Left ventricle

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  Fig. 6. Limb lead electrocardiogram during the clinical course of Patient 2. (a) ECG on the second day after the surgery showing sinus tachycardia. (b) One week after the surgery, the ECG showing a third-degree AV block. (c) ECG before discharge from the hospital showing sinus rhythm with a second-degree AV block (with 2:1 atrioventricular conduction)