Spinal Tuberculoma: A Rare Cause of Paralysis and How to Treat It
"Discovering a rare cause of progressive lower limb paresis and the critical role of early diagnosis and treatment."
Tuberculosis (TB) remains a significant global health concern, particularly in regions of Africa and Asia. While TB primarily affects the lungs, it can also involve the central nervous system (CNS), although this is less common. Spinal tuberculomas, a rare manifestation of CNS tuberculosis, account for a small fraction of all TB cases.
Spinal tuberculomas are infrequent, often presenting as a gradual compression of the spinal cord. Advances in imaging techniques like MRI have improved the ability to diagnose these lesions. This article explores a unique case of spinal tuberculoma, detailing its diagnosis and management, and emphasizing the importance of early intervention.
Focusing on a specific instance encountered in a neurosurgery department, we delve into the diagnostic process, treatment strategies, and patient outcomes associated with spinal tuberculoma. By examining epidemiological aspects, clinical presentations, radiological findings, and therapeutic approaches, this article aims to provide valuable insights into this rare condition.
A Rare Cause of Progressive Weakness
Spinal intramedullary tuberculoma is rare: two sources report estimates of 1–2 cases per 100,000 patients with tuberculosis, while another gives 2 per 100,000 cases of tuberculosis (Reference URL 1; Reference URL 2). One source also reports that it accounts for 2% of tuberculosis cases involving the central nervous system. A case report describes a 48-year-old patient who developed progressively worsening motor weakness in both lower limbs.
Diagnosis Can Be Difficult
Spinal tuberculomas are classified by location as extradural, intradural extramedullary, or intramedullary. When there is no evidence of systemic tuberculosis, their clinical presentation may be indistinguishable from that of other intramedullary lesions. A 2024 case report emphasizes considering tuberculoma among the differential diagnoses for intramedullary space-occupying lesions.
Understanding Spinal Tuberculoma: Symptoms, Diagnosis, and Treatment
A 48-year-old male presented with increasing difficulty walking, accompanied by tingling sensations, back pain, and bladder issues. These symptoms had been worsening over two months. He also reported a low-grade fever and weight loss. His medical history was unremarkable, and there was no known exposure to TB.
- MRI Findings: The MRI revealed a heterogeneous lesion within the spinal cord, enhancing after contrast injection. This lesion also showed surrounding edema, suggesting inflammation.
- Surgical Intervention: Based on these findings, a micro-surgical resection of the lesion was performed.
- Pathological Diagnosis: Microscopic examination of the removed tissue confirmed the diagnosis of tuberculoma, characterized by caseous necrosis surrounded by epithelioid cells, giant cells, and lymphocytes.
- Post-operative Course: Following surgery, the patient experienced partial recovery of motor function and bladder control. He was started on anti-tuberculosis medication for 10 months, along with rehabilitation therapy.
- Follow-up: At 18-month follow-up, the patient had regained the ability to walk independently, and repeat MRI showed no recurrence of the lesion.
Spread, Diagnosis, and the Need for Timely Care
A 2025 case report and literature review says spinal-cord involvement usually follows hematogenous spread from a primary tuberculosis focus, often in the lungs. The review describes intramedullary tuberculoma as an exceptional cause of spinal-cord compression that can lead to significant, sometimes irreversible, neurological damage. It highlights prompt diagnosis and appropriate treatment, and reports that early surgery can decompress the spinal cord and confirm the diagnosis. A separate source notes that myelography and myelo-CT can help reveal intradural extramedullary tumors in settings where resources are limited, while MRI better characterizes the diagnostic approach.
A Single Reported Case in One Service
A report from the neurosurgery department in Abidjan states that it observed only one case of intramedullary tuberculoma. This is a report about that service, not a population-wide count, so it cannot establish how often the condition occurs across the region. The source provides no further details about diagnostic or treatment failures.
Uncommon Compared with Other CNS Tuberculomas
One source reports that central nervous system involvement occurs in 0.5–2% of people with tuberculosis and generally presents as an intracranial lesion. It gives a rate of 2 per 1,000 CNS tuberculomas for spinal intramedullary tuberculoma. Another source focuses on MRI findings and emphasizes that atypical presentations can resemble other intramedullary lesions, complicating comparison based on imaging alone.
The Path to Recovery: Why Early Detection Matters
The diagnosis and treatment of spinal tuberculoma require a high index of suspicion, especially in regions where TB is prevalent. MRI plays a crucial role in identifying these lesions, allowing for timely intervention.
Rare Concurrent Brain and Spinal Lesions
A source on concurrent spinal and intracranial tuberculomas reports that only nine such cases had been described in the literature at the time of its review. Of those nine, only two involved multiple lesions in both the spine and cranium. The report also describes concurrent tuberculomas across the brainstem, cerebral lobes, and cerebellum, illustrating the unusually extensive patterns documented in this literature.
While the optimal management strategy remains debated, a combination of surgical resection and anti-tuberculosis therapy is often employed. Corticosteroids may also be considered to reduce inflammation, although their effectiveness is not definitively established.
Spinal tuberculoma, though rare, can be effectively managed with prompt diagnosis and appropriate treatment. Advances in neuroimaging, microsurgical techniques, and anti-tuberculosis medications have significantly improved outcomes for affected individuals.