D16: Benign neoplasm of bone and articular cartilage

D16.8: Benign neoplasm: Pelvic bones, sacrum and coccyx

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 pelvic bones include the sacrum and also several bones that are fused together. All these bones together form a bone ring. You have abnormal growth of tissue in the pelvic bone.