Tracheal squamous cell papilloma with an aberrant artery in the stalk
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* Yahua Li
* Kewei Ren
* Liqun Ye
* Jianzhuang Ren
* Xinwei Han

*   bronchoscopy
*   imaging/CT MRI etc

An 81-year-old woman presented with a 1-year history of chronic cough and progressive breath shortness. Physical examination was notable for wheezing. Her laboratory test results were normal. The chest contrast-enhanced CT scan revealed a cauliflower-like lesion in the upper third dorsolateral trachea, and an artery in the stalk of the tumour was observed (figure 1A,B). Considering the potential of massive bleeding during bronchoscopic resection, artery embolisation was performed. Angiography showed that the feeding artery originated from the thyrocervical trunk (figure 2A). Gelatin sponge particles were used to embolise the feeding artery (figure 2B). Then, the patient was transported to the bronchoscopy room for tumour resection (figure 2C). Finally, the tumour was entirely resected with mild bleeding. Histopathological examination suggested that the histological type of this lesion was squamous cell papilloma (SCP) (figure 2D).

![Figure 1](http://thorax.bmj.com/https://thorax.bmj.com/content/thoraxjnl/75/5/435/F1.medium.gif)

[Figure 1](http://thorax.bmj.com/content/75/5/435/F1)

Figure 1 
(A) Contrast-enhanced CT scan suggests a cauliflower-like lesion (1.5 cm×1.6 cm) at the level of the thyroid with an aberrant feeding artery in the stalk (black arrow). (B): Sagittal reconstruction image shows the artery inside the lesion (black arrow).

![Figure 2](http://thorax.bmj.com/https://thorax.bmj.com/content/thoraxjnl/75/5/435/F2.medium.gif)

[Figure 2](http://thorax.bmj.com/content/75/5/435/F2)

Figure 2 
(A) Angiography shows that the feeding artery originated from the thyrocervical trunk. (B) After embolisation, the feeding artery was occluded. (C) Bronchoscopy reveals that the cauliflower-like lesion almost occluded the trachea. (D) H&E staining suggests that the lesion is squamous cell papilloma.

Originating from squamous cell epithelium, SCP is a rare benign tumour that has the potential of malignant transformation.1 Smoking, age above 40 years and infections with HPV serotype 16 or 18 are risk factors that increase the chance of malignant transformation.2 3 In cases with an aberrant artery in the stalk of the SCP, selected artery embolisation is an effective way to reduce bleeding.

## Footnotes

*   YL and KR contributed equally.

*   Contributors All authors contributed equally.

*   Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

*   Competing interests None declared.

*   Patient consent for publication Parental/guardian consent obtained.

*   Provenance and peer review Not commissioned; externally peer reviewed.

## References

1.   Kim SR , Park JK , Park SJ , et al . Solitary bronchial squamous papilloma presenting as a plaque-like lesion in a subject with asthma. Am J Respir Crit Care Med 2011;183:555–6.[doi:10.1164/ajrccm.183.4.555](http://dx.doi.org/10.1164/ajrccm.183.4.555) 
    
    [PubMed](http://thorax.bmj.com/lookup/external-ref?access_num=21325086&link_type=MED&atom=%2Fthoraxjnl%2F75%2F5%2F435.atom) 

2.   Himuro N , Niiya Y , Minakata T , et al . A solitary bronchial squamous cell papilloma with increased 18-fluorodeoxyglucose uptake and high serum levels of squamous cell carcinoma antigen. J Thorac Dis 2018;10:E435–7.[doi:10.21037/jtd.2018.05.78](http://dx.doi.org/10.21037/jtd.2018.05.78) 
    
    

3.   Stevic R , Milenkovic B . Tracheobronchial tumors. J Thorac Dis 2016;8:3401–13.[doi:10.21037/jtd.2016.11.24](http://dx.doi.org/10.21037/jtd.2016.11.24)