| A | B |
| allograft | Transplantation of tissue from an individual of one species to another individual of the same species |
| asplenia | Absence of a spleen |
| autograft | Transplantation of tissue from one part of the body to another part of the same body. |
| immunocompentence | Ability to produce an immune response to antigens. |
| immunodeficiency | Inability to produce an immune response. |
| lymphadenectomy | Surgical removal of lymph nodes. |
| lymphadenopathy | Enlargement of lymph nodes. |
| lymphadenotomy | Incision of a lymph node. |
| lymphocytopenia | Too few lymphocytes in the blood. |
| lymphocytosis | Too many lymphocytes in the blood. |
| lymphoma | Tumor composed of lymphatic tissue. |
| lymphosarcoma | Cancer within the lymphatic tissue. |
| splenectomy | Surgical removal of the spleen |
| splenitis | Inflammation of the spleen. |
| splenomegaly | Enlargement of the spleen. |
| splenotomy | Incision of the spleen. |
| thymectomy | Surgical removal of the thymus. thymitis (thi-miā²tis) Inflammation of the thymus. |
| xenograft | Transplantation of tissue from one species into a recipient of another species |