Mediastinal large B-cell lymphoma (MLBCL) is a rare type of non-Hodgkin lymphoma (NHL).
The mediastinum is an area inside the chest, between the lungs and behind the breast bone. It contains the thymus, the heart, some large blood vessels, the gullet, the windpipe and lymph nodes.
MLBCL usually affects younger people aged 25 to 40, and is more common in women than in men.
This information is best read with our general information about NHL. We hope it answers your questions. If you have any further questions, you can ask your doctor or nurse at the hospital where you are having treatment.