Library · Neoplasm

Endometrial cancer

Make it clearer

Endometrial cancer starts in the endometrium, the tissue that lines the inside of the uterus. It is called cancer when malignant cells appear in that lining, meaning cells that no longer grow under the controls that normal cells follow.

There is another cancer of the uterus that is worth keeping separate from this one, and what tells them apart is which uterine tissue each one begins in. Think of a room: a problem in the wallpaper covering the inside of the wall is not the same as a problem in the wall holding it up. The endometrium is the wallpaper. The uterine muscle is the wall, and the cancer that begins in that muscle has a name of its own: uterine sarcoma.

In brief

Endometrial cancer occurs when malignant cells form in the tissues of the endometrium.

It is not the same as cancer of the uterine muscle, which is called uterine sarcoma.

Sources (1)
  1. National Cancer Institute PDQ Adult Treatment Editorial BoardEndometrial Cancer Screening (PDQ) - Patient VersionPublished

This page explains the topic in general terms; it does not tell anyone what treatment to follow.

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