Carcinoma ex pleomorphic adenoma of the trachea: A case report

Table 1 Clinical features of the four patients with carcinoma ex pleomorphic adenoma of the trachea

Study	Age (yr) / Sex	Tumor location	Size (cm)	Clinical features	Treatment	Follow-up
Ding et al[10]	65/M	Posterior tracheal wall	2.2	Chronic obstructive pulmonary disease	Surgical resection	3 mo
Demirağ et al[11]	56/M	Approximately 4 cm from the carina	2.5	Dyspnea	Surgical resection and radiotherapy	2.5 yr
Mori et al[13]	69/F	On the left side of the trachea	-	Husky voice, dyspnea	Surgical resection and radiotherapy	16 mo
Hemmi et al[12]	76/F	Trachea	1.3	Cough, dyspnea	Surgical resection	11 yr
Present study	56/F	Tracheal wall, on the right side	1.8	Progressive dyspnea	High-frequency electrosurgical snare combined with argon plasma coagulation and radiotherapy	10 mo