Mycoplasma pneumoniae‐ induced mucositis without rash in an 11‐year‐old boy

Key Clinical Message Mycoplasma pneumoniae is a frequent cause of childhood pneumonia, and extrapulmonary manifestations may be noted at the time of infection. While M. pneumoniae has long been associated with Stevens–Johnson syndrome, a separate diagnostic entity, Mycoplasma pneumoniae‐ induced rash and mucositis ( MIRM ), has recently been proposed to better characterize the rash and severe mucositis that some patients exhibit. A subset of patients with MIRM will have mucositis without skin rash. Physicians should recognize this clinical entity and be familiar with treatment options for MIRM .