Renal angiomyolipoma with sonographic demonstration of extension into the inferior vena cava.

Kutcher, Rosalyn; Rosenblatt, Ruth; Mitsudo, Sumi; Goldman, Mark A.; Kogan, Stanley J.

doi:10.1148/radiology.143.3.7079506

Cited by 56 publications

(15 citation statements)

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“…It has a tendency to invade parenchyma [1] but extrarenal growth is rare and vascular extension into the IVC has been reported to date in only 7 cases, to our knowledge [2][3][4][5][6][7]. Although venous involvement represents aggressive local invasion, histology showed no evidence of malignant transformation in our patient or any of the previous cases.…”

Section: Discussioncontrasting

confidence: 41%

Imaging of fat thrombus in the inferior vena cava originating from an angiomyolipoma

Moulin

Berger

Chagnaud

et al. 1994

Cardiovasc Intervent Radiol

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Section: Discussioncontrasting

confidence: 41%

Imaging of fat thrombus in the inferior vena cava originating from an angiomyolipoma

Moulin

Berger

Chagnaud

et al. 1994

Cardiovasc Intervent Radiol

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“…Contiguous tumor extension directly into the IVC is common in renal cell carcinoma (Fig 15), (29). Intracaval extension of benign tumors is an extremely rare occurrence that has been reported in renal angiomyolipoma and adrenal pheochromocytoma (43,44). Very rarely, malignant or even benign pheochromocytoma can extend into the IVC.…”

Section: Bland Thrombus and Intracaval Tumorsmentioning

confidence: 99%

Imaging the Inferior Vena Cava: A Road Less Traveled

Kandpal¹,

Sharma²,

Gamangatti³

et al. 2008

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A broad spectrum of congenital anomalies and pathologic conditions can affect the inferior vena cava (IVC). Most congenital anomalies are asymptomatic; consequently, an awareness of their existence and imaging appearances is necessary to avoid misinterpretation. Imaging also plays a central role in the diagnosis of Budd-Chiari syndrome secondary to membranous obstruction of the intrahepatic IVC. Primary malignancy of the IVC is far less common than intracaval extension of malignant tumors arising in adjacent organs, and imaging can accurately help determine the presence and extent of tumor thrombus, information that is crucial for surgical planning. However, the radiologist should be aware that artifactual filling defects at computed tomography and magnetic resonance imaging can mimic true thrombus in the IVC and must be able to differentiate true from pseudo filling defects. Other imaging findings such as flat IVC and early enhancement of the IVC are useful in limiting the differential diagnosis. Familiarity with the imaging features of the various congenital and pathologic entities that can affect the IVC is paramount for early diagnosis and management.

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“…Although renal angiomyolipoma is classified as a benign tumour, only nine cases with tumour thrombus in the IVC or renal vein have been reported [ 1–3]. In the present case, there were no pathological findings suggesting malignancy so the extension into the renal vein and IVC was not clinically significant.…”

Section: Commentmentioning

confidence: 45%