Abstract
A 35-year-old man complained of right truncal pain around T7-8 dermatomal distribution and on examination, T7-8 spinal tenderness was observed. Magnetic resonance imaging showed osteolytic mass in T8 vertebral body without structural lesions involving spinal nerve roots. Dermatomal somatosensory evoked potentials (DSEP) were helpful in diagnosis with thoracic radiculopathy. Finally, Langerhans cell histiocytosis was confirmed in bone biopsy. Thoracic radiculopathy can be caused by various etiologies including bone tumor and DSEP is useful supplementary tool for diagnosing thoracic radiculopathy.
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