PMC8349044_01
Chest computed tomography (CT) scans for the patient. An intratracheal mass was observed, with well-defined borders and homogeneous enhancement (A, arrow). Six months after surgery, no signs of recurrence were observed (B, arrowhead).
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This mass was well-circumscribed with homogeneous enhancement (Fig. 1). Chest CT scans 6 months after surgery showed no signs of recurrence (Fig. 1).
Hematoxylin and eosin stain ( x 100) revealed that the tumor contained epidermoid, mucous, and intermediate cells.
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The histological results demonstrated that the tumor cells included epidermoid, mucous, and intermediate cells without keratinization (Fig. 2).