Breast cancer is a complex disease affecting millions of women worldwide and can rarely affect men.

According to the Centers for Disease Control and Prevention, about 264,000 cases of Breast Cancer in women and 2,400 in men are diagnosed in the United States annually.

While diagnosing, the doctor assesses two critical factors to determine the severity of Breast Cancer: grade and stage.

Breast Cancer grade is referred to the aggressiveness of the cancer cells, showing how fast they are growing and spreading.

On the other hand, stages of Breast Cancer know the extent of the spread of cancer in the body.

Both grade and stages play a crucial role in guiding the treatment of Breast Cancer and predicting patient outcomes.

This article will discuss the difference between Breast Cancer grade vs stage and their impact on prognosis.

Breast Cancer stages

The stages of Breast Cancer are the Roman numerals ?, ?, ?, and ?, followed by A, B, and C.

Higher the number, the more advanced Breast Cancer you have.

breast cancer stages
Breast cancer stages

Stage 0

This stage means that the cancer has been diagnosed early.

Breast Cancer starts in the milk or breast ducts and has not spread further.

You will hear the words in situ that mean “in the original place” as it stays in one place and does not spread to other tissues.

Stage ?

This stage means that the cancer is invasive, meaning it is free and can attack healthy tissues.

Stage ? Breast Cancer is further divided into Stage ?A and Stage ?B.

  • Stage ?A means that cancer has spread further into fatty breast tissues. The tumor is the size of a shelled peanut, or there may be no tumor
  • Stage ?B means some cancer cells have been found in a few of your lymph nodes

Stage ?

It means the cancer has grown bigger, spread to other healthy tissues, or both.

Stage ? Breast Cancer is also divided into Stage ?A and Stage ?B.

  • Stage ?A means that the tumor is small. There are fewer chances of cancer in the lymph nodes that may have spread up to three of your nodes
  • Stage ?B means the tumor is the size of a walnut or a lime. It may or may not be in lymph nodes

Stage ?

In Stage ?, cancer has not yet spread to other organs or bones. 

But, cancer at this stage is considered advanced and harder to fight.

Stage ? cancer is divided into ?A, ?B, and ?C.

  • Stage ?A means Breast Cancer is found in up to nine lymph nodes forming a chain from your underarm to the collarbone. It may have spread to lymph nodes deep in your breast. Some may have large tumors in the breast, and others may not 
  • Stage ?B means the tumor has grown into the skin around the breast and the chest wall, even if it is not spread to lymph nodes
  • Stage ?C means cancer has been found in more than ten lymph nodes and has spread below or above your collarbone. The cancer is also ?C if fewer lymph nodes outside the breast are affected but inside lymph nodes are enlarged and cancerous

Stage ?

Breast Cancer cells spread far away from the lymph nodes and breast in Stage ?.

The most common sites of the spread are bones, liver, lungs, and brain.

Stage ? cancer is also known as Metastatic Breast Cancer, which means the cancer cells have spread beyond the region where it was found.

Warning:
Consult your doctor if you feel any lump around your breast or other body parts. This may be a symptom of Breast Cancer or other severe conditions.

Breast Cancer grades

After diagnosing the stage of your cancer, your doctor will diagnose it for its grade.

Grading is done based on how the cells look and how fast they grow compared to normal cells.

Breast Cancer grades also show how likely cancer will spread to other body parts.

The diagnosis is made by observing the Breast Cancer cells under a microscope and assigning each one a score between 1 to 3.

If you have Stage 0 Breast Cancer, your doctor will grade the cells based on their appearance.

They will also try to see if any dead or dying cancer cells are present.

If there are cancer cells, it means they are growing faster, and if a lot of them are dead, you have a higher grade of Stage 0 Breast Cancer.

Difference between grade and stage in Breast Cancer

Mammography
Mammography

Breast Cancer grade and stage are two factors used to know and categorize the disease.

The grade of cancer cells is determined by their microscopic appearance, which indicates the level of aggressiveness on a scale of 1 to 3. 

The assigned grade is based on the abnormality and growth of the cancer cells compared to normal cells.

On the other hand, the Breast Cancer stage means the extent of the cancer spread in the body.

This involves tumor size, lymph nodes, and metastasis of cancer cells.

Staging follows the TNM system, which ranges from 0 (non-invasive) to ? (metastatic). 

While grade reflects cell behavior, stage reflects tumor size and spread. 

Understanding both factors is essential in guiding treatment decisions and predicting prognosis for breast cancer patients.

Fact:
Doctors also use the TNM system to know about Breast Cancer. “T” stands for tumor. Higher the number after it, the bigger and wider the lump. “N” stands for the lymph nodes. M” stands for metastasis, which means cancer has spread beyond the lymph nodes and breast.

Conclusion

Breast Cancer grade and stage are essential factors in understanding the nature and progression of the disease. 

The grade helps determine the aggressiveness of cancer cells, while the stage provides insights into the extent of tumor spread. 

Both grade and stage are significant in guiding treatment decisions and predicting patient outcomes. 

By considering these factors together, your doctor can develop personalized treatment plans.

Various research and advancements in understanding these factors will enhance our ability to fight Breast Cancer effectively and improve prognosis.

Recommended Article:
To learn about various treatment methods for Breast Cancer, read Breast Cancer Treatment: Options at Different Stages.

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