Post-Radiation Changes in Blood Flow of the Arm
Clinical details
Duplex sonography arouses suspicion of left subclavian vein thrombosis with arm edema, 2 years after adjuvant radio-chemotherapy for a mamma carcinoma.
Summary of findings
6 cm lower contrasted section of left brachial vein without recognizable thrombus or external compression. No free-floating thrombus, no external compression.
Diagnosis
Scarring residuum following radiation or a recanalized thrombosis. Since no floating thrombus could be detected, the interrupted lymph drainage could be continued.
Description of images
[1] Good arterial contrast in the first-pass acquisition to exclude arterial stenoses of the supraaortal branches (MIP reformation).
[2] Transverse reformation to show the left brachiocephalic vein, left subclavian and axillar vein in the steady-state phase. A partial occlussion can already be differentiated in the distal axillar vein (arrow).
[3] Transverse reformation of the constricted vein segment where the axillar vein joins the brachial vein in the steady-state phase (arrows). The proximal and distal vein sections display high contrast.


