I recently got a MyChart message from a patient that went something like this: “I’m so confused. Dr. Arora told me I have Stage 1 cancer, but I just looked at my biopsy report, and it says Grade 2. Which one is it?!”
If you’ve ever felt like you need a PhD just to read your own medical chart, you aren’t alone. In my Fort Worth practice, I occasionally get this exact question.
So here’s what I told them: Stage and grade are different. They don’t contradict each other; they describe two different parts of the same diagnosis.
The Wildfire analogy
This is not a perfect analogy, but it helps. Think of cancer like a wildfire starting in Trinity Park, Fort Worth. To understand the threat, the fire department has to look at two things:
- Stage: Where is the fire right now? Stage tells us the location and spread. Is the fire still contained within the grass at Trinity Park, or has it crossed the river and spread into nearby neighborhoods? A lower stage means the fire is still contained in its starting area. A higher stage means it has traveled beyond its origin.
- Grade: How intense is the fire? Grade tells us how aggressive the cancer cells look under a microscope. It predicts how likely that fire is to grow and spread over time. A lower grade is like a small, slow-burning brush fire that is easier to manage. A higher grade is like a wind-driven blaze that can move rapidly if you don’t act quickly.
The part that trips people up is when you can have a cancer that is low stage (the fire is still in Trinity Park) but high grade (it’s intense and could spread fast). Conversely, you can have cancer that is higher stage (it has already crossed the river) but lower grade (it is moving very slowly). We use both numbers together because Stage tells us where we are today, while Grade helps us predict what happens in the next few years.
Choosing the right plan (example: kidney cancer)
Kidney cancer is often diagnosed on CT/MRI, and we choose treatment based on size, location, and whether it’s spread.
- Active surveillance (watching closely): For some small kidney masses (less than 3cm in size), especially in older patients or those with other medical issues, we may monitor with scheduled CT/MRI scans and treat only if it grows or changes.
- Local treatment (when it’s localized): If the tumor appears confined to the kidney, we aim to cure it with surgery, often a partial nephrectomy (remove the tumor, save the kidney) when feasible, or a radical nephrectomy when needed.
- Multimodal treatment (when it’s high-risk or spread): If the tumor is large, aggressive, involves lymph nodes/veins, or has metastasized, treatment often combines surgery with systemic therapy (immunotherapy and/or targeted therapy), depending on the situation and final pathology.
You can explore these different pathways in more detail on our Kidney, Prostate, or Bladder cancer Patient Education pages.
Sohrab Arora, MD, MS, MCh
Urologic Oncology & Robotic Surgery
Texas Health Harris Methodist, Fort Worth
Learn more about Dr. Arora here.
See Dr. Arora’s research profile at Google Scholar.