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.

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