Sandbox: DDx Kidney mass
60-70 male patients von Hippel-Lindau syndrome
Polygonal cells, clear cytoplasm, and a central nucleus
Delicate branching vasculature
"Chicken wire-like" vasculature
Hyaline bodies common
Chromosome 3 mutation
VHL gene mutation
Gain of chromosome 5
Nonmalignant causes
anaplastic sarcoma clear cell sarcoma mesoblastic nephroma metanephric stromal tumor nephroblastomatosis / nephrogenic rests neuroblastoma oncocytoid carcinoma after neuroblastoma ossifying