Endometriosis is when tissue similar to the lining of the uterus (known as "lesions") grows in other areas of the body, leading to complications such as pain and infertility. After endometriosis ...

Hodgkin lymphoma (formerly known as Hodgkin disease), which involves an abnormal type of lymphocyte called Reed-Sternberg cells Non-Hodgkin lymphoma, which does not contain Reed-Sternberg cells Both ...