Arteriovenous Fistula Simulating a Solid Tumor of the Kidney

Vorreuther, R.; Gross-Fengels, W.; Mathers, M.

doi:10.1159/000282193

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…Recent papers have also described renal AVMs that mimic solid tumors 8 and parapelvic cysts and intrarenal varices that mimic hydronephrosis. 9,10 An awareness of these other conditions that can mimic hydronephrosis is important, particularly if percutaneous intervention is considered.…”

Section: Discussionmentioning

confidence: 99%

Renal arteriovenous malformation mimicking hydronephrosis

Kember

Peck

1998

J. Clin. Ultrasound

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Section: Discussionmentioning

confidence: 99%

Renal arteriovenous malformation mimicking hydronephrosis

Kember

Peck

1998

J. Clin. Ultrasound

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Traumatic renal arteriovenous fistula in a 3-year-old girl, successfully treated by percutaneous transluminal embolization

Zee

Hoek

Weerts

1995

Journal of Pediatric Surgery

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Primary Vascular Tumors and Tumor-like Lesions of the Kidney: A Clinicopathologic Analysis of 25 Cases

Brown

Folpe

Rao

et al. 2010

American Journal of Surgical Pathology

119

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Vascular tumors of the kidney are distinctly rare, and to date no large series have been reported. We analyzed a series of primary vascular tumors of the kidney to further delineate their clinicopathologic features and identify organ-specific morphologic features, if present. Twenty-five renal cases previously coded as "arteriovenous malformation," "hemangioma," and "angiosarcoma" were retrieved from the archives of 4 collaborating institutions and were reevaluated histologically. Tumors were classified according to the 2002 World Health Organization classification of tumors of soft tissue and bone. There were 18 males and 7 females (M:F=2.6:1) ranging from 21 to 95 years (mean 56.7 y). Lesions ranged from "microscopic" to 30 cm (mean 6.0 cm) and were tan-brown, cystic, and hemorrhagic. On re-review, cases were classified as arteriovenous malformation (n=3), capillary hemangioma (n=14), and angiosarcoma (n=8). Arteriovenous malformations were identical to their somatic soft tissue counterparts. Renal capillary hemangiomas often lacked a well-formed lobular pattern and 5 cases showed a "sieve-like" arrangement reminiscent of splenic sinusoids, a pattern previously noted by others (anastomosing hemangioma). All hemangiomas were noninfiltrative and lacked cytologic atypia and mitotic activity. GLUT-1, D2-40, and CD8 were performed in 3 anastomosing hemangiomas and were all negative. Angiosarcomas were diffusely infiltrative with extensive parenchymal destruction; all showed at least small areas of conventional vasoformative growth, but were frequently dominated by spindled and epithelioid histology. All cases were positive for some combination of vascular tumor-associated markers (CD31, CD34, and FLI-1). Cytokeratin expression was absent in all angiosarcomas. Follow-up was available for 15 cases: all patients with arteriovenous malformation and hemangioma with follow-up were disease free after complete excision; 4 cases of angiosarcoma died of the disease at 1, 1, 6, and 11 months. Our review shows that many capillary hemangiomas of the kidney are morphologically distinctive tumors, which often show "spleen-like" or "anastomosing" features. Angiosarcomas of the kidney are highly aggressive tumors with poor outcome and may have morphologic features (spindling and epithelioid change), which could result in confusion with sarcomatoid carcinomas and other renal mesenchymal tumors.

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Arteriovenous Fistula Simulating a Solid Tumor of the Kidney

Cited by 3 publications

References 6 publications

Renal arteriovenous malformation mimicking hydronephrosis

Renal arteriovenous malformation mimicking hydronephrosis

Traumatic renal arteriovenous fistula in a 3-year-old girl, successfully treated by percutaneous transluminal embolization

Primary Vascular Tumors and Tumor-like Lesions of the Kidney: A Clinicopathologic Analysis of 25 Cases

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