Chest
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A 27-year-old accountant came to the ED with difficulty walking and progressive weakness of both lower limbs for 4 days' duration. He did not report a history of trauma or fall. He demonstrated no vertigo, headache, neck or back pain, disturbed vision, loss of weight, or weakness in upper limbs. ⋯ He had maintained an oxygen saturation of 98% to 99% as measured on pulse oximetry. He had not received any treatment at that time. His symptoms had lasted for 7 days, and he remained asymptomatic up to the current presentation with paraparesis.