Anastomosing hemangioma of the genitourinary tract is a rare neoplasm displaying some overlapping features of both sinusoidal hemangioma and hobnail hemangioma of soft tissue and skin. However, in our opinion, it is a unique neoplasm with a proclivity for the kidney. (19606014)
Its anastomosing appearance can lead to concern for angiosarcoma but, despite small numbers and limited follow-up in our series, evidence to date supports that the lesion is benign. (19606014)
References
Anastomosing Hemangioma of the Genitourinary Tract: A Lesion Mimicking Angiosarcoma. Montgomery E, Epstein JI. Am J Surg Pathol. 2009 Jul 13. PMID: 19606014