Premature filling of veins is a manifestation in cerebral angiography of:
Trauma
Brain tumor
Aeriovenous malformation
Aerial occlusion
Diagnosis of AVM is made by conventional catheter cerebral angiography Diagnosis is based on demonstration of aeries and veins on the same conventional angiographic image, proving the high-flow shunting of blood (leading to early filling of veins) through the nidus network or fistulous vessels In the typical AVM, there is a cloudlike nidus, or network of smaller vessels, well seen on angiography Ref: Sabiston 20th edition Pgno: 1925
Head and neck