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The phenomenon of spontaneous resolution of herniated intervertebral discs has been occasionally reported.1 Most reported cases are young patients, and the resolution is believed to be due to the inflammatory response.2 We encountered such a patient, a 42-year-old male, with symptomatic L5-S1 intervertebral disc herniation. At initial presentation, he had bilateral sciatica, which was more predominant on the right side. He was unable to stand straight or lie flat. A bilateral slump test was positive; yet, neurological integrity was maintained. Magnetic resonance imaging (MRI) revealed a huge right sided L5-S1 intervertebral disc herniation of grade 3AB as per MSU classification with grade 3 nerve root compromise as per Pfirrmann's grading (Fig. 1).345
Conservative modalities of management such as rest, oral analgesics and physiotherapy were initiated. The patient attained a tolerable level of pain relief and hence surgery was not considered. He was followed up on in our out-patient clinic every 3 months. A MRI scan was repeated one year after the initial presentation which demonstrated signs of resolution of the herniated L5-S1 disc. By 2 years, there was complete disappearance of the herniation evidenced in the MRI probably due to the inflammatory response (Fig. 2).2 The patient was asymptomatic at the end of our follow up and has consented for his radiological images to be reported. We consider the reported images to be illustrative of this occasional phenomenon of spontaneous resolution of herniated intervertebral discs.
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