| PAVNRT | paroxysmal atrioventricular nodal reciprocal tachycardia |
|---|---|
| PNB | p-nitrobiphenyl; perineal needle biopsy; peripheral nerve block; premature nodal beat |
| PNC | penicillin; peripheral nucleated cell; pneumotaxic center; premature nodal contracture |
| SANDR | sinoatrial nodal reentry |
| TNI | total nodal irradiation |
| Burkitt's lymphoma | <oncology, tumour> A type of Non-Hodgkin lymphoma that most often occurs in young people between the ages of 12 and 30. The disease usually causes a rapidly growing tumour in the abdomen. (12 May 1997) |
|---|---|
| cancer, lymphoma, hodgkin's | A type of lymphoma (cancer of the lymphatic system). The most common symptom of Hodgkin's disease is a painless swelling in the lymph nodes in the neck, underarm, or groin. Hodgkin's disease is diagnosed when abnormal tissue is detected by a pathologist after a biopsy of an enlarged lymph node. Treatment usually includes radiation therapy or chemotherapy. Regular follow-up examinations are important after treatment for Hodgkin's disease. Patients treated for Hodgkin's disease have an increased risk of developing other types of cancer later in life, especially leukaemia. (12 Dec 1998) |
| cancer, lymphoma, non-hodgkin's | A lymphoma is a cancer that develops in the lymphatic system. The most common symptom of non-Hodgkin's lymphomas is a painless swelling in the lymph nodes in the neck, underarm, or groin. Non-Hodgkin's lymphomas are diagnosed with a biopsy of an enlarged lymph node. Follow-up examinations are important after lymphoma treatment. Most relapses occur in the first 2 years after therapy. (12 Dec 1998) |
| canine malignant lymphoma | <tumour> A progressive fatal disease of dogs characterised by neoplastic transformation and proliferation of lymphoid cells, usually originating in solid lymphoid organs (lymphosarcoma) or bone marrow (lymphocytic leukaemia). (05 Mar 2000) |
| malignant lymphoma | <tumour> A general term for ordinarily malignant neoplasms of lymphoid and reticuloendothelial tissues which present as apparently circumscribed solid tumours composed of cells that appear primitive or resemble lymphocytes, plasma cells, or histiocytes. Lymphomas appear most frequently in lymph nodes, spleen, or other normal sites of lymphoreticular cells; when disseminated, Lymphoma's, especially of the lymphocytic type, may invade the peripheral blood and manifest as leukaemia. Lymphomas are classified by cell type, degrees of differentiation, and nodular or diffuse pattern; Hodgkin's disease and Burkitt's lymphoma are special forms. (05 Mar 2000) |
| Mediterranean lymphoma | A spectrum of conditions ranging from a benign plasma cell hyperplasia to a highly malignant lymphoma of the small intestine. (12 Dec 1998) |
| well-differentiated lymphocytic lymphoma | <tumour> Essentially the same disease as chronic lymphocytic leukaemia, except that lymphocytes are not increased in the peripheral blood; lymph nodes are enlarged and other lymphoid tissue or bone marrow is infiltrated by small lymphocytes. Synonym: small lymphocytic lymphoma. (05 Mar 2000) |
| poorly differentiated lymphocytic lymphoma | <tumour> A B-cell lymphoma with nodular or diffuse lymph node or bone marrow involvement by large lymphoid cells. Synonym: follicular predominantly small cleaved cell lymphoma, nodular histiocytic lymphoma. (05 Mar 2000) |
| cutaneous T-cell lymphoma | <oncology, tumour> A type of non-Hodgkin's lymphoma that first appears on the skin. Synonym: mycosis fungoides. (13 Nov 1997) |
| histiocytic lymphoma | <tumour> A malignant tumour of reticular tissue composed predominantly of neoplastic histiocytes. See: large cell lymphoma. (05 Mar 2000) |
| Hodgkin's lymphoma | <haematology, oncology> A human malgnant disorder of lymph tissue (lymphoma) that appears to originate in a particular lymph node and later spreads to the spleen, liver and bone marrow. It occurs mostly in individuals between the ages of 15 and 35. It is characterised by progressive, painless enlargement of the lymph nodes, spleen and general lymph tissue. Giant cells, the Reed Sternberg cells, with mirror image nuclei are diagnostic. Immunological depletion, caused perhaps by the excessive growth of neoplastic histiocytes, occurs. Four types of the disease are recognised depending on the relative predominance of various neoplastic derivatives of the lymphoid series. Pyrexia is often a feature of the disease. Death often results from generalised immunological inability to respond to infections. If detected early, it has a high remission rate. Staging: Ann Arbor classification; each stage is further classified as:, A no symptoms, B fever, sweats, weight loss. Stage I - involvement of a single lymph-node region or extralymphatic site. Stage II - two or more sites of involvement on the same side of the diaphragm. Stage III - disease involvement on both sides of the diaphragm. Stage IV - disseminated disease of extralymphatic organs, with or without lymph-node involvement. Indicence: approximately 1,500 new cases per year in the UK. (30 Mar 2000) |
| human T-cell lymphoma/leukaemia virus | A group of viruses (subfamily Oncovirinae, family Retroviridae) that are lymphotropic with a selective affinity for the helper/inducer cell subset of T lymphocytes and that are associated with adult T-cell leukaemia and lymphoma. Synonym: human T-cell lymphotropic virus. (05 Mar 2000) |
| small bowel lymphoma | <radiology> Patterns:, infiltrative dilatation, nodular multiple filling defects, polypoid may cause intussiception from leading point associated with Burkitt lymphoma, endoexoenteric fistulae (12 Dec 1998) |
| small lymphocytic lymphoma | <tumour> Essentially the same disease as chronic lymphocytic leukaemia, except that lymphocytes are not increased in the peripheral blood; lymph nodes are enlarged and other lymphoid tissue or bone marrow is infiltrated by small lymphocytes. Synonym: small lymphocytic lymphoma. (05 Mar 2000) |
| nodular histiocytic lymphoma | <tumour> A B-cell lymphoma with nodular or diffuse lymph node or bone marrow involvement by large lymphoid cells. Synonym: follicular predominantly small cleaved cell lymphoma, nodular histiocytic lymphoma. (05 Mar 2000) |