“…[1,2] Although MAAs have decreased gradually owing to the development and popularization of antibiotics, its rapid development and high rupture rate have resulted in a very poor prognosis. [1,2] Recently, the most common cause of MAAs reported worldwide has been Staphylococcus aureus , followed by Salmonella which is more common in East Asia. [1,2] Klebsiella and Mycobacterium have also been reported as rarer causes of MAAs.…”