Heteroechogenic partially occluding soft solid material (thrombus) is noted within the left upper arm medial segment of the cephalic vein with the mentioned material adhering within the venous walls focally and sparing a luminal central portion (6.1 mm in diameter). There is moderate (24.4 mm) fusiform dilatation of the cephalic vein proximal to the fistulation point.
Accompanying the intraluminal venous filling defect and the moderate fusiform venous dilatation, are multiple areas (two) of complete kinking/coiling of the left cephalic vein and the left subclavian vein ipsilaterally with the subclavian venous coiling (at the level of the veno-axillary junction) showing 3600 turn with characteristic ribbon shape appearance.