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We describe areas where major inroads were initially achieved by targeting angiogenesis and by unraveling pathways in the heterogeneous tumors of mesenchymal origin-spurred by the identification of c-Kit–activating mutations in GIST and the regressions that ensued when tumors harboring these mutations were exposed to the tyrosine kinase inhibitor imatinib (Gleevec).

CancerNetwork speaks with Dr. Michael Atkins, who has extensive clinical experience in kidney cancer and development of various new treatments and is presenting this weekend during the renal cancer translational science session at the American Society of Clinical Oncology 2012 Genitourinary Cancers Symposium.

The patient is a 43-year-old man who was initially evaluated at an outside institution for unexplained anemia and who was found to have a large right kidney mass. He underwent a radical nephrectomy for a 19-cm large-cell, poorly differentiated neoplasm, consistent with pleomorphic, epithelioid angiomyolipoma (EAML) with extensive necrosis and cytologic atypia.