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(
A
) Macroscopic aspect of the tumor after complete surgical removal, the ruler indicating every centimeter with numbers, measuring a total length of 32 cm; (
B
) Preoperative computed tomography displaying the longitudinal dimension of the tumor, H indicating tumor height, showing its embedment around large thoracic vessels.
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Chest X-ray and computed tomography (CT) incidentally revealed a mass in the upper anterior mediastinum ( Fig. 1B ).  The resected tumor showed a polylobulated, beige-yellowish surface, ranging from firm, elastic to cartilaginous hard consistency, 320 mm x 145 mm x 100 mm in size and 637 g in weight ( Fig. 1A ).
Clinical appearance of the calcifying fibrous tumor during median sternotomy.
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Adherence of the tumor with the aorta and superior cava vein above the pulmonary vessels required meticulous preservation of the large vessels, resulting in a complete extirpation of the tumor ( Fig. 2 ).