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Case Reports
, 35 (4), 232-236

Intravascular Epithelioid Angiosarcoma in the Abdominal Aorta Mimicking an Infected Aneurysm

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Case Reports

Intravascular Epithelioid Angiosarcoma in the Abdominal Aorta Mimicking an Infected Aneurysm

Woong Ki Park et al. Vasc Specialist Int.

Abstract

Primary aortic angiosarcoma is very rare, and preoperative diagnosis is challenging with resultant poor prognosis. Angiosarcoma may mimic an infected aneurysm or a mural thrombus. Clinical suspicion of angiosarcoma is vital for an early diagnosis and proper surgical treatment, especially in cases with atypical rapid growth of an aortic abdominal aneurysm with a thrombotic mass. Herein, we report a case of angiosarcoma in the abdominal aorta mimicking an infected aneurysm and present computed tomography and positron emission tomography findings.

Keywords: Aneurysm; Angiosarcoma; Aorta; Hemangiosarcoma; Positron-emission tomography.

Conflict of interest statement

CONFLICTS OF INTEREST The authors have nothing to disclose.

Figures

Fig. 1
Fig. 1
Initial outside computed tomography revealed a 18×19 mm saccular outpouching lesion of aorta just above the aortic bifurcation (arrow in A). The lesion increased up to 21×36 mm in size within 50 days (arrow in B). Positron emission tomography revealed hypermetabolic lesions in the aorta (arrows in C and D).
Fig. 2
Fig. 2
Pathologic specimen of the resected aorta. Most of the lesion consisted of necrotic thrombus in the gross specimen (A). Microscopic view showed tumor cells with necrotic cells (B, C) (Hematoxyline & eosin stain, magnification, ×100 in B, ×200 in C).
Fig. 3
Fig. 3
Follow-up computed tomography after 2 years showed multiple metastases. (A) Left adrenal mass encasing renal vessels. (B) Intra-aortic mass showing two filling defects. (C) Patent aortic graft. (D) Intraluminal mass extending down to common iliac arteries.

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