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CSF cytology and HIV serology were both negative. EMG, however, confirmed the clinical findings of polyradiculopathy. T1W and T2W MRI of the lumbar spine demonstrated diffuse thickening of the nerve roots of the cauda equina, which enhanced following intravenous gadolinium administration (Figs. 1 and 2). No parenchymal involvement was seen.
Sphenoid sinus mucosal thickening occurs when the lining of the sinus cavities swell. Cysts filled with mucous can form in the cavities when a gland becomes obstructed and swells. Prior infections can cause swelling, and swelling can also lead to an infection. Continue Reading.