Spontaneous septic diskitis: a common complaint with a serious pathologic cause that should not been overlooked.

Many people who have low back pain are likely to be out of work and taking medication and probably make demands on both primary and secondary health care as well as the private sector. Septic diskitis is a rare cause of back pain, accounting for less than 0.01% of cases in the primary care setting (Carragee EJ. Pyogenic vertebral osteomyelitis. J Bone Joint Surg Am. 1997;79:874-80). It has been associated with a high morbidity and mortality in the past. Although it is an unusual complication in a postoperative patient, it is even more rare in a nonoperative patient. It accounts for 2% of all osteomyelitis (Maiuri F, Iaconetta G, Gallicchio B, Manto A, Briganti F. Spondylodiscitis. Clinical and magnetic resonance diagnosis. Spine. 1997;22:1741-6) and may occur spontaneously, after surgery (especially after epidural anesthesia), in the immunosuppressed, and systemic infections. It has the potential to be an orthopedic pitfall in the emergency department because it can be presented with nonspecific symptoms, nonspecific laboratory abnormalities, and nondiagnostic radiographic studies. We present a case of low back pain in a previously healthy individual as a result of spontaneous septic diskitis, which had been initially misdiagnosed in the private sector as herniation of an intervertebral disk.