case_images: PMC11087738_01
case_images: Chest CT scan with or without contrast. (a and b) Small nodules in the bronchial lumen of the dorsal segment of the lower lobe of the right lung. (c) Scattered tiny nodules in both lungs.
case_images: j_biol-2022-0845-fig001.jpg
case_images: PMC11087738_01_j_biol-2022-0845-fig001.jpg
case_images: j_biol-2022-0845_fig_001
case_images: Given these findings, the patient was admitted to our department with a preliminary diagnosis of "occupying lesion of the lung" (Figure 1).
case_images: Bronchoscopic appearance (a) before and (b) after minimally invasive intervention.
case_images: j_biol-2022-0845-fig002.jpg
case_images: PMC11087738_01_j_biol-2022-0845-fig002.jpg
case_images: j_biol-2022-0845_fig_002
case_images: During bronchoscopy, a white oval-shaped lesion completely obstructing the right lower lobe bronchus was observed (Figure 2a). Subsequently, residual tumor tissue at the opening of the right lower lobe bronchus was treated with electrocautery and a ball electrode (Figure 2b), followed by mucosal biopsy.
case_images: Diagnostic tumor pathology (magnification: 10x).
case_images: j_biol-2022-0845-fig003.jpg
case_images: PMC11087738_01_j_biol-2022-0845-fig003.jpg
case_images: j_biol-2022-0845_fig_003
case_images: Histopathological examination of the specimen obtained during bronchoscopy revealed a spindle cell tumor with bundled arrangement and inconspicuous atypia, consistent with leiomyomas (Figure 3).
case_images: Postoperative follow-up review. (a) A chest CT scan at 3 weeks postoperatively showed a soft tissue nodule in the right bronchus, but there was no significant change compared to the previous examination. (b) Bronchoscopy performed at 7 weeks postoperatively showed localized mucosal whitening and fluorescence defects at the right lower lobe bronchial opening, but the airway remained patent. (c) A chest CT scan 6 months postoperatively showed no signs of tumor recurrence.
case_images: j_biol-2022-0845-fig004.jpg
case_images: PMC11087738_01_j_biol-2022-0845-fig004.jpg
case_images: j_biol-2022-0845_fig_004
case_images: Subsequent follow-up examinations, (Figure 4) including chest CT and bronchoscopy, did not reveal any signs of tumor recurrence.