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Korean J Urol Oncol > Volume 11(1); 2013 > Article
The Korean Journal of Urological Oncology 2013;11(1): 41-44.
신정맥과 하대정맥의 침범이 있는 상피모양 변화를 동반하지 않은 신혈관근지방종
박상호1, 권종규1, 장인호1, 김정훈1, 임송원2
1중앙대학교 의과대학 비뇨기과학교실, 2한전병원 비뇨기과
Non-Epithelioid Renal Angiomyolipoma with Renal Vein and Inferior Vena Cava Invasion
Sang Ho Park 1, Jong Kyou Kwon 1, In Ho Chang 1, Jung Hoon Kim 1, Song Won Lim 2
Department of Urology, 1College of Medicine, Chung-Ang University, 2KEPCO Medical Center, Seoul, Korea
Published online: April 30, 2013.
ABSTRACT
Tumor thrombus in renal vein or inferior vena cava is rare in patients with renal angiomyolipoma, which is a common benign neoplasm of kidney, especially without potential malignant transformation as epithelioid angiomyolipoma. A 58-year-old female who has known to have a fat containing renal mass in the right kidney, incidentally found by abdominopelvic computed tomography at 2004, was referred to the department of urology with a problem of increased size of the renal mass on computed tomography scan. In this case surgical treatment was clinically necessary due to the invasion of the renal vein and inferior vena cava. The mass and thrombi were excised successfully and the pathology results confirmed that both mass and thrombi are benign angiomyolipoma without any variant histologic differentiation. It must be concerned that vascular invasion can arise from conventional, asymptomatic, and small angiomyolipoma when the physicians decide to have conservative management with surveillance. (Korean J Urol Oncol 2013;11:41-44)
Key Words: Angiomyolipoma; Thrombus; Neoplasm invasion
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