Introduction: In-situ right atrial (RA) thrombus is a rare occurrence typically associated with heightened inflammatory or hypercoagulable states. Here, we present a case of in-situ RA thrombus mimicking atrial myxoma in a patient with sepsis and bacteraemia.
Case Description: A 41-year-old man presented with septic arthritis and bacteraemia caused by methicillin-resistant (MRSA).