Cancer module

Kidney Cancer · Renal-cell

Bosniak-classified renal-mass surveillance with MRI / CT phase imaging.

Reporting system
Bosniak v2019 (1–4) / AJCC T-stage
Imaging modalities
  • Multiphase CT (renal protocol)
  • MRI with contrast
  • Renal Ultrasound
  • Pathology
Key findings OCTON surfaces
  • Bosniak III/IV cystic renal mass
  • Solid renal mass with avid arterial enhancement
  • Renal-vein / IVC thrombus
  • Perinephric fat invasion
  • Hereditary syndrome stigmata (VHL, BHD, HLRCC)
Evidence base
  • AUA Renal Mass and Localized RCC 2021
  • NCCN Kidney Cancer v3.2025
  • EAU Renal-Cell Carcinoma Guidelines 2024
Risk questionnaire
  • · What is your age?
  • · Current or former smoker?
  • · BMI ≥ 30?
  • · Long-standing hypertension?
  • · Acquired cystic kidney disease / dialysis?
  • · Known VHL / BHD / HLRCC syndrome?
  • · First-degree relative with kidney cancer?
See OCTON in action · early-detection demos
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Kidney · Renal-cell carcinomaYou're herehigh · 84/100MRI · Bosniak v2019 IV
Bosniak IV cystic mass in a VHL-surveillance patient
Right renal Bosniak IV cystic mass · 2.8 cm · with avid arterial enhancement of mural nodule.
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