I had my father's CT scan as he's having issues in his legs and hands.. The CT scan marks :- Mucosal Thickening is seen in the right sphenoid sinus There's a generalised prominence of sulci, gyri and cisternal spaces- suggestive of diffuse age related parenchymal atrophy. Impression: Mild diffuse neuroparenchymal atrophy. Can you please guide what does that mean, is it serous? What should be our next step? Symptoms are: weak and numb legs bellow the knee. Unsteady hands and confusion ...