Table 1
Summary of the reported cases of spontaneous pneumomediastinum in asthma

Study	Age (yr)/sex	Symptom	Image finding	Treatment	Hospital length of stay (day)
Yang et al. [3]	16/M	Dyspnea, cough	Subcutaneous emphysema, pneumomediastinum, minimal pleural effusion	Conservative	11
Son et al. [4]	29/M	Dyspnea, chest pain, cough	Subcutaneous emphysema, pneumomediastinum	Conservative	5
Faruqi et al. [5]	28/F	Dyspnea, cough	Subcutaneous emphysema, pneumomediastinum	Conservative	5
Khalid et al. [6]	20/F	Dyspnea, swelling of upper chest, fever	Subcutaneous emphysema, pneumomediastinum, pneumopericardium	Conservative	3
Ameh et al. [7]	2/M	Dyspnea, cough	Subcutaneous emphysema, pneumomediastinum, pneumopericardium	Conservative	7
Kim et al. [8]	15/M	Dyspnea, cough	Subcutaneous emphysema, pneumomediastinum, pneumopericardium, minimal pneumothorax	Conservative	10
Egbagbe and Elusoji [9]	19/M	Dyspnea, dysphagia, hoarseness	Subcutaneous emphysema, pneumomediastinum	Conservative	6
This case	18/F	Dyspnea chest pain, cough, sore throat	Pneumomediastinum	Conservative	11