GlossarySee Full Entry

Thymus: An organ that is part of the lymphatic system, in which T lymphocytes grow and multiply. The thymus is in the chest behind the breastbone.

Alternate Names
Thymus gland
Primary Site
C379 Thymus
Abstractor Notes
Tumors of the thymus, thymomas, are rare and most often benign. As a lymphoid organ, the thymus may be primarily or secondary involved in lymphomas of the mediastinum.