Mar . 10 . 2026 Kidney Cancer Association This is a guest post by Alena Guggenheim, N.D., Assistant Professor of Anesthesiology and Perioperative Medicine at the Oregon Health & Science University’s School of Medicine in Portland, Oregon. Dr. Guggenheim was diagnosed with a malignant sarcoma in late 2024 after discovering a large mass on her kidney. I had been feeling slightly off for a week, a subtle wobble in my vision, a quickening of my heart I couldn’t quite name. Then, one night at 3 a.m., I woke dripping in sweat, with the worst headache of my life. I tried to ...