A Coexisting Adjacent Intradural and Extradural Spinal Cavernoma: A Rare Case.

A 34-year-old female patient, with no comorbidities, presented with complaints of upper back pain across the shoulders, with altered sensation on the left side from trunk to lower limb, which was associated with reduced motor function and an acute symptom of urinary retention. On examination, there was reduced power in the left lower limb, reduced anal tone, a positive Babinski sign bilaterally, and reduced sensation in the perianal region. Serial magnetic resonance imaging (MRI) scans were conducted, where initially an upper thoracic lesion suggestive of an intramedullary cavernoma was found, and nearly a decade later, an adjacent extradural lesion causing cord compression was found incidentally through a surgical procedure. The extradural lesion was removed, and the histology confirmed a cavernoma. In our report, we try to explain a rare case of a patient with co-existing extradural and intradural cavernomas within the spinal cord at different levels. If the patient is symptomatic, a detailed workup plan, along with diagnostic modalities, is needed for further management.