PT - JOURNAL ARTICLE AU - Harder, Samuel AU - Oberholtzer, Sarah AU - Shumilak, Geoffrey AU - Wudel, Beverly TI - Disseminated cutaneous <em>Mycobacterium haemophilum</em> infection in a patient on infliximab for rheumatoid arthritis AID - 10.1136/bcr-2021-245853 DP - 2022 Jan 01 TA - BMJ Case Reports PG - e245853 VI - 15 IP - 1 4099 - http://casereports.bmj.com/content/15/1/e245853.short 4100 - http://casereports.bmj.com/content/15/1/e245853.full SO - BMJ Case Reports2022 Jan 01; 15 AB - Mycobacterium haemophilum is a rarely encountered pathogen that is difficult to identify given its unique growth requirements. It is most often seen in adult patients who are immunosuppressed due to advanced HIV or haematological malignancy. Our case highlights a typical presentation of an atypical pathogen in a patient with rheumatoid arthritis receiving anti-tumour necrosis factor therapy. This case represents an important patient population in whom this previously rare infection is increasingly common.