RT Journal Article SR Electronic T1 COVID-19-associated inflammatory syndrome in an adult woman with unexplained multiple organ failure: staying vigilant for COVID-19 complications as the pandemic surges JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e242034 DO 10.1136/bcr-2021-242034 VO 14 IS 4 A1 Maedeh Veyseh A1 Patrick Webster A1 Irene Blanco YR 2021 UL http://casereports.bmj.com/content/14/4/e242034.abstract AB Since the emergence of SARS-CoV-2, clinicians have been challenged with a wide spectrum of disease severity. One of the serious complications associated with the virus is multisystem inflammatory syndrome in children (MIS-C). It is characterised by inflammation leading to organ damage, in the setting of positive SARS-CoV-2 infection. MIS-C is thought to be a postviral reaction where most children are negative on PCR testing but are positive for SARS-CoV-2 antibodies. The Centers for Disease Control and Prevention recently defined the same phenomenon occurring in adults as multisystem inflammatory syndrome in adults (MIS-A) and emphasised on the use of antibody testing in this population. Here we describe an adult woman with an exposure to SARS-CoV-2 who presented with unexplained organ failure and shock. Positive antibody testing was the only clue to the diagnosis of MIS-A. We stress the importance of SARS-CoV-2 antibody detection in order to identify these cases.