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Superficial Venous Aneurysm

Reports of 3 Cases and Literature Review

Department of Radiology, Seoul National University College of Medicine, Institute of Radiation Medicine, Seoul, Korea.

Address correspondence to Whal Lee, MD, Department of Radiology, Seoul National University College of Medicine, 28 Yongon-dong, Chongno-gu, Seoul 110-744, Korea. E-mail: leew{at}radiol.snu.ac.kr

Objective. The purpose of this series is to describe the ultrasonographic and computed tomographic (CT) findings of superficial venous aneurysms sometimes misdiagnosed as subcutaneous soft tissue tumors. Methods. Two of the patients had an asymptomatic subcutaneous mass that gradually increased in size; the third patient had a superficial mass in the right antecubital fossa associated with pain and occasional edema. All of the patients were examined with ultrasonography, and 2 had CT scans. Results. In all cases, ultrasound examinations showed a well-defined heterogeneous echoic lesion that was contiguous with the adjacent superficial vein and easily compressed by the probe, whereas a Doppler study indicated a venous spectral wave without pulsation. Dynamic enhanced CT showed homogeneous enhancement in the late phase, with contiguity with the adjacent vein. Only the third patient had an internal, floating, heterogeneous, echoic mass-like lesion, suggesting a chronic thrombus in the lesion on ultrasonography. This patient underwent aneurysmectomy with end-to-end anastomosis. Conclusions. Venous aneurysm should be included in the differential diagnosis of a subcutaneous mass, and an accurate understanding of the differences between superficial and deep venous aneurysms may help in diagnosis and treatment.

Key Words: aneurysm • superficial • ultrasonography • venous

Abbreviations: CT, computed tomography

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