D20: Benign neoplasm of soft tissue of retroperitoneum and peritoneum

D20.1: Benign neoplasm: Peritoneum

When there is abnormal growth of tissue, then this is also referred to as a tumor. The tissue in the body is made up of cells. A tumor disorder involves the cells multiplying more than normal. This results in abnormal or excess tissue forming. A tumor can be benign or malignant. The tumor you have is benign. Benign tumors do not destroy the healthy tissue and do not spread throughout the body.

The organs in the body are surrounded by a thin membrane. This thin membrane helps the organs to glide past each other better. These thin membranes sometimes also contain fatty tissue or other soft tissue. The tumor you have is in this soft tissue at the back of the abdomen.

If the tumor is small, then you usually have few or no symptoms. If the tumor is large, this can cause various symptoms. You may have abdominal pain, for example.