Sandbox: DDx Kidney mass
- 40 yo patients
- Abdominal pain
- Hematuria
- Palpable mass
- Polycythemia symptoms
- Arrangement of monotonous small blue embryonal epithelial cells
- Acinar, tubular, or sheetlike configuration
- Psammoma bodies
- Vimentin, pancytokeratin and cytokeratin-19
- Hyperattenuating heterogeneous mass on CT
- Unenhanced large hypovascular mass
- Frequent foci of hemorrhage and necrosis
- Calcification
Nonmalignant causes
anaplastic sarcoma clear cell sarcoma mesoblastic nephroma metanephric stromal tumor nephroblastomatosis / nephrogenic rests neuroblastoma oncocytoid carcinoma after neuroblastoma ossifying