Sciatic Neuropathy Caused by Focal Venous Engorgement Associated With Deep Vein Thrombosis: A Case Report.

A 69-year-old woman complained of severe left leg weakness with paresthesia. Electrodiagnostic tests revealed sciatic neuropathy, and imaging studies showed venous engorgement around the sciatic nerve. After anticoagulant therapy and intensive rehabilitation, the patient's muscle strength improved from 1 to 3 on the Medical Research Council scale. The diagnosis of sciatic neuropathy caused by deep vein thrombosis is extremely rare; however, it should be considered in the differential diagnosis of unilateral lower extremity weakness in patients recovering from intensive care.