PMC9834795_01
preoperative chest X-ray; left paracardiac opacity (arrow)
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F1
Diagnostic assessment: the chest X-ray showed mediastinal enlargement with left para-cardiac opacity (Figure 1).
frontal computed tomography: (A) mature teratoma of the superior mediastinum; axial computed tomography; (B) mature teratoma of the anterior mediastinum; sagittal computed tomography; (C) mature teratoma that compresses the trunk of the pulmonary artery (arrow)
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F2
The chest computed tomography scan (CT) objectified a voluminous anterior and upper mediastinal cystic formation lateralized to the left of 9x7.2x6 cm with a compression effect on the trunk of the pulmonary artery (Figure 2).
intraoperative view: mature teratoma of the anterior and superior mediastinum (white arrow); the heart (blue arrow)
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F3
The exploration found a mediastinal mass of 9 cm of major axis, related to the lateral face of the aorta, with the trunk of the pulmonary artery and very adherent to the pericardium (Figure 3).
complete excision of the mature teratoma
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F4
The meticulous dissection allowed the complete excision of this lesion (Figure 4).
postoperative chest X-ray; disappearance of left paracardiac opacity (arrow)
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F5
The chest X-ray did not objectify any detectable abnormality (Figure 5).