Giant Thrombosed Venous Aneurysm in the Calf: MRI Characteristics and the Target Sign

Completely Thrombosed Venous Aneurysm in Great Saphenous Vein

“…Our case was a VA in the superficial system, with no probability of silent pulmonary embolism, and no symptom of pulmonary embolism such as acute shortness of breath had been observed. Five cases of complete thrombosed VA have been reported in English literatures (Table 1)1-5. Our case is the first case which occurred in a great saphenous vein.…”

“…Our case is the first case which occurred in a great saphenous vein. Of these six cases, only one case was diagnosed precisely by accurate venous ultrasound imaging and CT scanning3, however the other five cases were misdiagnosed as a soft tissue tumor and so on, in spite of various imaging studies1,2,4,5.…”

Popliteal Venous Aneurysm Presenting With Bilateral Pulmonary Thromboembolism

“…Alternatives include delayed venous phase CT, which may reveal layered filling defect representing thrombus within a dilated popliteal vein and/or saccular outpouching of the same, and magnetic resonance imaging, which may demonstrate a target sign, potentially confused for peripheral nerve tumor. 18 T2-weighted gradient echo may more sensitively identify hemosiderin deposition. 18…”