Stages of Endometriosis

In addition to the staging systems, endometriosis can also be described using descriptive classifications that provide more information about the characteristics and location of the lesions. These descriptive classifications help in understanding the extent and specific features of endometriosis. Here are some common descriptive classifications:

• Superficial peritoneal endometriosis: This refers to the presence of endometriotic lesions on the peritoneum, which is the lining of the pelvic cavity. These lesions are typically shallow and superficial, and they may appear as small red or brown patches.
• Deep infiltrating endometriosis (DIE): This classification refers to the presence of endometriosis lesions that penetrate deeply into the surrounding tissues beyond the peritoneum. DIE can involve structures such as the uterus, ovaries, fallopian tubes, bowel, bladder, and other pelvic organs. The depth of infiltration and involvement of different organs can vary.
• Ovarian endometriomas: These are also known as chocolate cysts. They are cystic masses that form on the ovaries due to the accumulation of old blood from endometriosis lesions. Ovarian endometriomas can vary in size and may cause pain and discomfort.
• Adenomyosis: Although not strictly classified as endometriosis, adenomyosis is a condition where endometrial tissue grows into the muscular wall of the uterus. It can cause symptoms such as heavy and painful periods, and it is often associated with endometriosis.
• Extra-pelvic endometriosis: In some cases, endometriosis lesions can be found outside the pelvic region. They may occur in areas such as the abdominal wall, diaphragm, lungs, or other distant sites. This is referred to as extra-pelvic endometriosis.