Recurrent vertebral osteomyelitis and psoas abscess caused by Streptococcus constellatus and Fusobacterium nucleatum in a patient with atrial septal defect and an occult dental infection.

We describe a case in which recurrent vertebral osteomyelitis and psoas abscess due to Streptococcus constellatus and Fusobacterium nucleatum developed in a patient with a previously unrecognized atrial septal defect with bidirectional shunts. Disease recurrence was ascribed to the presence of dental disease, which served as the source of infection. To the best of our knowledge, this is the first case in which vertebral osteomyelitis and psoas abscess have been associated with atrial septal defect.