PMC8702718_01
Transthoracic echocardiogram revealing the presence of a pedunculated lobular mass [peduncle (asterisk); mass (arrow head)] within the left ventricle.
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F1
Transthoracic echocardiogram (TTE) examination showed the following characteristics: aorta 34 mm, left atrium 35 mm, LV cavity 51 mm (end-diastolic diameter), and a hyperechoic mass 30 x 27 mm located on the left side of the heart (middle-apical region), occupying almost 2/3 of the LV with blood supply from the left anterior descending (LAD) coronary artery (Figure 1).
Computed Tomography (CT) scans. (A) CT scan showing a well-defined hypodense tumor in the left ventricle (arrow). (B) CTA 3D reconstruction; hypodense tumor (yellow arrow).
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F2
CT scan of the chest confirmed a mass measuring 28 x 32 mm (Figure 2).
Mediastinoscope image via a left atriotomy showing a yellowish well-encapsulated mass within the left ventricle.
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F3
The mediastinoscope provided a more detailed view than the usual valve retractors, providing a safe resection of the mass (Figure 3).
Histopathological examination of the excised mass showed mature adipocytes, consistent with lipoma accompanied by some small vessels and limited collagenous capsule. HandE staining, x10.
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F4
Intraoperative histopathologic examination of the excised specimen revealed fatty structure (mature adipose tissue) with areas of increased vascularity (Figure 4).