PMC8111287_01
Preoperative chest computed tomography reveals an endotracheal tumor nearly totally obstructing the tracheal lumen.
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F1
On day 2, contrast-enhanced multidetector CT revealed a mass lesion with a fat density that was nearly totally obstructing the tracheal lumen (Figure 1).
(A) Fiberoptic bronchoscopy image of the large mass covered by smooth mucosa in the mid-tracheal region. (B) Placing the loop of the snare around the base of the mass. (C) The process of mass removal by electrocautery snare. (D) Most of the mass is removed by electrosurgical snaring under bronchoscopy. (E) Photograph showing a slight protrusion at the position of the incision at 1 year post-operatively.
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F2
A large mass covered by smooth mucosa with a stalk was obstructing approximately 85% of the trachea in the mid-tracheal region (Figure 2A). After placing the loop of the snare around the base of the mass (Figure 2B), the electrocautery snare was used in blend mode at 30 W to cut and coagulate the base of the mass (Figure 2C). The mass was resected without evidence of bleeding or perforation (Figure 2D). There was a slight protrusion at the position of the incision (Figure 2E).
The tumor was a hamartoma largely comprising mature fat cells.
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F3
The pathologic examination suggested that the mass was a tracheal hamartoma predominantly constituted of mature fat cells (Figure 3).
Chest computed tomography at 1 year postoperatively shows that the anterior wall of the trachea has collapsed slightly.
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F4
The patient returned to the hospital for repeat chest CT examination and bronchoscopy at 1 year postoperatively (Figure 4).