Grades of Infiltrating Ductal Carcinoma

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What are the grades of infiltrating ductal carcinoma?

1 Answer

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Infiltrating ductal carcinoma is a type of breast cancer that grows beyond the duct wall and moves into the surrounding tissue(s). And the grades of it are assessment quantitative measures according to the size and shape of nuclei. In general, there are 3 grades.
  • Grade 1: (score: 3~5)

This is a low grade. More specifically, it means the cancer cells look like normal cells and grow slowly in a well-organized pattern.

  • Grade 2: (score: 6~7)

In such case, the cancer cells look moderately different from normal cells. They grow and divide faster than normal.

  • Grade 3: (score: 8~9)

The last grade indicates that the cancer cells are poorly differentiated. In other words, they grow quickly in irregular patterns.

    Keywords: infiltrating ductal carcinoma grade; IDC grade.
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