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WHO Classification of Tumours
Hemangioma, NOS
Kidney


Definition

A benign localized vascular neoplasm usually manifesting in infancy and childhood. It is histologically characterized by the formation of capillary-sized or cavernous vascular channels. The majority of cases are congenital
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Fletcher CDM, Unni KK, Mertens F (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of Soft Tissue and Bone.
3rd Edition
IARC Press: Lyon 2002



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Renal hemangiomas most commonly affect young to middle aged adults. Tumours are typically unilateral, single, unencapsulated and of a spongy red appearance. Renal pyramids and renal pelvis are the most common sites of involvement

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Eble JE, Sauter G, Epstein JI, Sesterhenn IA (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of the Urinary System and Male Genital Organs.
3rd Edition
IARC Press: Lyon 2004



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