Multifocal Capillary Hemangioma-Like Vascular Proliferation of the Kidney Associated With Clear Cell Renal Cell Carcinoma

Abstract

We report the case of a 69-year-old man who underwent a radical left nephrectomy for a renal mass. Microscopically, the features were those of a clear cell–type renal cell carcinoma associated with 2 foci of capillary hemangioma-like vascular proliferation in the adjacent renal parenchyma. The main differential diagnosis and the possible pathogenesis of this vascular lesion are discussed.

Keywords

kidney capillary hemangioma clear cell–type renal cell carcinoma vascular proliferation angiogenesis

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References

Cook

Czerniak

Chan

. Nodular spindle-cell vascular transformation of lymph nodes. A benign process occurring predominantly in retroperitoneal lymph nodes draining carcinomas that can simulate Kaposi’s sarcoma or metastatic tumor. Am J Surg Pathol. 1995;19:1010-1020.

Kuhn

De Anda

Manoni

Netto

Rosai

. Renal cell carcinoma associated with prominent angioleiomyoma-like proliferation: report of 5 cases and review of the literature. Am J Surg Pathol. 2006;30:1372-1381.

Mehta

Ananthanarayanan

Antic

. Primary benign vascular tumors and tumorlike lesions of the kidney: a clinicopathologic analysis of 15 cases. Virchows Arch. 2012;461:669-676.

Brown

Folpe

Rao

. Primary vascular tumors and tumor-like lesions of the kidney: a clinicopathologic analysis of 25 cases. Am J Surg Pathol. 2010;34:942-949.

LeBoit

. Lobular capillary proliferation: the underlying process in diverse benign cutaneous vascular neoplasms and reactive conditions. Semin Dermatol. 1989;8:298-310.