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Query: UMLS:C0029713 (immaturity)
 4,335 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Lymph nodes were examined from 41 cases of typical chronic lymphocytic leukemia (CLL). Degree of immaturity was graded as absent to minimal (Grade I), moderate (Grade II) and marked (Grade III). A moderate degree of immaturity was found in the lymph node in 14 of 41 cases even though the cells seen on the initial bone marrow and peripheral blood smears obtained from these patients were essentially all mature. The morphology of these nodes could be confused with poorly differentiated lymphocytic or mixed lymphocytic-histiocytic lymphoma in terms of the degree of immaturity present. A marked degree of immaturity present. A marked degree of immaturity was found in 5 cases; the morphology of these cases resembled histiocytic lymphoma. In the remaining 22 cases immaturity was essentially absent. The morphology of these cases was similar to that of diffuse well differentiated lymphocytic lymphoma. Our studies suggest that a moderate degree of immaturity in the lymph node of patients with CLL does not indicate that these patients will have a marked shortening of their survival.
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PMID:The lymph node in chronic lymphocytic leukemia. 58 71

In a group of 23 patients with chronic lymphocytic leukaemia in 1-4 clinical stages of the disease according to Rai et al (34) classification, mostly untreated (only 5 treated) considerable heterogeneity was found as evidenced by: variability of the morphological patterns of bone marrow, differences of immunological phenotypes of peripheral blood lymphocytes between individual cases, --coexistence of the features of maturity and immaturity in the populations of peripheral blood lymphocytes in the same case.
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PMID:[Heterogeneity of the cases of chronic B-cell leukemia and the heterogeneity of leukemic cell populations]. 226 Apr 8

The morphologic lymphonode features have been reviewed in 11 cases of chronic lymphocytic leukemia and correlated to the clinical staging and survival. It is observed that 3/4 of cases with focal immaturity in the lymphonodes presented a more advanced clinical staging and shorter survival.
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PMID:[Morphologic aspect of lymph nodes and its correlation to clinical stage and survival in 11 cases of chronic lymphatic leukemia]. 326 3

Radioimmunoassays were used to measure the total cellular content of mu, gamma, alpha, delta, kappa and lambda immunoglobulin chains in peripheral blood lymphocytes from normal adults, neonates and 11 patients with chronic lymphocytic leukaemia (CLL). Normal adult lymphocytes contained all classes of immunoglobulin, but predominantly IgG, associated with both types of light chain (kappa:lambda ratio 2:1). In contrast, mu was the major heavy chain in cells from 10 of the CLL patients, and the small amount of IgG found in CLL cells was not produced by the leukaemic clone. Approximately equimolar amounts of one type of light chain were also present, indicating monoclonality. The class distribution of the immunoglobulin in the neonatal cells was intermediate between that of CLL and normal adult cells. CLL B cells had substantially less surface IgM than normal but more cytoplasmic IgM. These data demonstrate the immaturity of neonatal B cells and suggest that CLL cells are also immature--at a stage not normally found in the adult circulation.
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PMID:Quantitation of immunoglobulin isotypes in chronic lymphocytic leukaemic cells compared with normal adult and neonatal lymphocytes. 398 Jan 9

Neoplastic cells from 2 cases of CLL synthesized and secreted excess free Ig light chain in culture, confirmed by precipitation with anti-idiotypic antibody. Small and medium sized normal human spleen cell subpopulations, staining predominantly for surface IgM and D, also synthesized and secreted excess free light chain. PWM stimulation induced balanced synthesis of heavy and light chains in CLL and normal spleen subpopulations after 6 days in culture, accompanied in spleen but not CLL by the appearance of mature plasma cells. These data demonstrate that normal cell counterparts of neoplastic lymphoid synthesis patterns can be identified in spleen. Furthermore, the synthesis pattern alteration after PWM stimulation suggests a relationship between free light chain synthesis and B cell immaturity. The failure of CLL cells to develop into detectable plasma cells suggests a restricted maturation response to mitogen compared with normal spleen.
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PMID:Induction of balanced immunoglobulin chain synthesis in free light chain-producing lymphocytes by mitogen stimulation. 678 99

A 56-year-old married female presented in May 1998 with a 5-month history of xanthelasma of the eyelids, followed 4 months later by two enlarged lymph nodes of the left side of the neck and three of the left axilla. At the same time, she developed xanthomatous patches on the face, neck, and shoulders (Fig. 1). The cutaneous lesions were xanthomatous nodules and plaques, affecting the periorbital regions. Later, the whole face was affected, followed by ulcerated lesions on the scalp, chest, back, and extremities (Fig. 2). The skin lesions became painful, pruritic, ulcerated tumors (Fig. 3). In July 1998, computed tomography (CT) scans of the chest and abdomen with contrast medium showed pretracheal, bilateral axillary, right retrochural, paracaval, aortocaval, and para-aortic lymph node enlargement. These findings were suggestive of lymphoma. CT scan also showed slight heterogeneous hypodensity in the upper part of the right lobe of the liver, suggesting fatty infiltration. The spleen, pancreas, and suprarenal glands appeared normal. One cervical and two left axillary lymph nodes were excised. They revealed total replacement of the nodular architecture by a diffuse proliferation of mature lymphoid cells having small nuclei and a crumbled chromatin pattern, and very rare mitosis. It was concluded from the lymph node biopsies that these changes were typical of non-Hodgkin's lymphoma, diffuse and small cell type, of low-grade malignancy. A bone marrow aspirate showed a marrow heavily infiltrated by lymphoid cells with some immaturity. The megakaryopoiesis was adequate. Trephine biopsies showed similar changes. Iron stores appeared to be absent. The bone marrow picture was consistent with diffuse, well-differentiated non-Hodgkin's lymphoma, developing into chronic lymphocytic leukemia (CLL). Endoscopy showed antral-type gastric mucosa exhibiting mild chronic gastritis. Skin biopsy from a fresh lesion on the back showed a diffuse inflammatory cell infiltrate with collections of histiocytic cells. It also showed necrobiotic foci, surrounded by mixed inflammatory cells, dark palisaded foamy histiocytes, and a few Touton giant cells. These findings are compatible with necrobiotic xanthogranuloma (NXG) (Figs 4 and 5). Blood film showed normochromic, normocytic erythrocytes with anisopoikilocytotic leukocytes and normal platelets. The sedimentation rate was 90 mm in the first hour. The blood picture also showed monoclonal IgG paraprotein (3170 mg/dL) of the kappa light chain type. The patient was treated by the oncologist for her lymphoma, and was given Cytoxan, prednisolone, endoxan, Leukeran, and melphalan. She showed an excellent response to pulsed treatment with steroids (60 mg prednisolone orally daily for 5 days, repeated every month for 6 months). She also responded to Leukeran at a dose of 5 mg daily for 5 days every month for 6 months, and showed regression in the size of the lymph nodes. The treatment of her skin lesions was unsatisfactory in spite of the fact that she was given cyclosporine and both systemic and topical corticosteroids.
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PMID:Necrobiotic xanthogranuloma associated with paraproteinemia and non-Hodgkin's lymphoma developing into chronic lymphocytic leukemia: the first case reported in the literature and review of the literature. 1653 36