Mycoplasma pneumoniae infection complicated by pneumomediastinum and severe mucositis

We report an 8-year-old boy with Mycoplasma pneumoniae respiratory infection complicated by pneumomediastinum and severe oral and conjunctival mucositis. M. pneumoniae-associated mucositis is distinct from the Stevens-Johnson syndrome. There are no skin lesions and it improves promptly with antibiotics. Spontaneous pneumomediastinum usually only requires rest, analgesia and management of the underlying condition.