A Young Man With Dyspnea.

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 also reported difficulty breathing, fever, severe abdominal pain, and loose stools of 1 day's duration. His recorded maximum temperature at home was 38.3 °C. The fever subsided with oral paracetamol 500 mg. He did not report having weakness in any limb before the current presentation. He did not have comorbid diabetes mellitus or hypertension. Thirty days before presentation, he experienced fever, cough, and rhinorrhea and received a diagnosis of COVID-19 after reverse-transcriptase polymerase chain reaction testing. At that time, symptoms had been minimal, vitals signs and chest radiography findings were normal, and he had undergone home isolation. 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.