What is a mediastinal lymphoma?
Mediastinal lymphoma is a rare type of cancer. More popularly known as primary mediastinal B-cell lymphoma (or PMBL), it arises in a specialized organ of the immune system called the thymus. Mediastinal lymphoma or PMBL mostly affects young adults. It is a sub-type of diffuse large B-cell lymphomas (DLBC), which are the most common and aggressive types of all the lymphomas.
Lymphomas are the cancers of the lymphocytes, which are a type of immune cells. Both diffuse large B-cell lymphomas and primary mediastinal B-cell lymphomas affect B-lymphocytes of the immune system; however, the thymic mediastinal lymphoma has a better prognosis. Primary mediastinal B-cell lymphomas may also resemble another type of lymphoma, Hodgkin lymphoma, in their characteristics.