PMC8427315_01
Chest X-ray illustrating a large 12 x 10 cm right mid to upper hemithorax dense lesion (green arrow). (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)
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A chest X-ray revealed a right twelve-centimeter upper-to-mid hemithorax lesion with decreased aeration (Fig. 1).
Chest computed tomography with angiography showing a 12.0 x 9.4 cm x 9.4 cm right upper lobe mass (yellow arrow). (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)
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A subsequent chest computed tomography with angiography confirmed a twelve-centimeter right upper lobe mass with a small pleural effusion (Fig. 2).
200x magnification Hematoxylin and Eosin stain of the tumor lesion composed of spindle cells without significant nuclear atypia, increased numbers of mitosis, and necrosis.
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A needle core biopsy of the lung lesion was obtained and revealed spindle cells with wavy and fusiform nuclei with the expression of beta-catenin (Fig. 3); favoring desmoid fibromatosis.