The presentation and management of psoas abscess was studied prospectively in 5 patients and retrospectively in 4. 3 patients had bilateral abscesses. All patients had back pain and a mass in loin or iliac fossa. 7 patients had no hip findings. One patient had a perinephric abscess and another had radiological features of tuberculosis of the spine. In the other seven no cause for the abscess could be identified. Ultrasonography demonstrated the abscess in all patients; CT scanning done in 5 patients was confirmatory. Drainage was done by an extraperitoneal route. Biopsy of the abscess wall in 2 patients demonstrated tuberculosis. They, the patient with TB spine and 3 others put empirically on anti-tuberculosis chemotherapy responded well. The perinephric abscess grew Pseudomonas sensitive to gentamycin, but she and two other patients died due to multiorgan failure.
BACKGROUND: Gout is a monosodium urate deposition disease which is prevalent worldwide. The usual manifestations are crystal arthropathy and tophi deposition in the soft tissues. Spinal tophi may also occur and are rarely reported, resulting in various clinical manifestations such as back pain, spinal cord compression, radiculopathy, and even mimicking epidural abscess and spondylodiscitis.
CASE PRESENTATION: We report a case of a 42-year-old Chinese man with underlying gout who presented with back pain and radiculopathy. The diagnosis of spinal tophi was unsuspected and he was initially treated for epidural abscess and spondylodiscitis. He underwent a laminectomy and posterolateral fusion during which tophus material was discovered. He recovered and medications for gout were started.
CONCLUSION: Spinal tophi are rare. The diagnosis is difficult and spinal tophi may be mistaken for epidural abscess, spondylodiscitis, or neoplasm.