title: Intra-arterial knotted catheter.
abstract: Although cerebral arteriography is commonly employed as a diagnostic radiologic procedure its use is not entirely innocuous. Beside the usual complications of an invasive technique the retention of a knotted distal flexible catheter tip may be encountered. This report presents a case in which this occurred with subsequent extraction by way of incision of the femoral artery.
mesh_terms: D000328:Adult; D002404:Catheterization / Q000009:adverse effects*; D002533:Cerebral Angiography / Q000009:adverse effects*; D005260:Female; D005263:Femoral Artery; D006801:Humans