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Query: UMLS:C0019829 (Hodgkin's disease)
 30,247 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Neoplastic tissues from 75 adults with non-Hodgkin's malignant lymphoma, histologically classified according to the Rappaport schema, were studied for B- and T-lymphocyte surface markers. All nodular poorly differentiated lymphocytic lymphomas and diffuse well-differentiated lymphocytic lymphomas were B cell. Of 30 diffuse poorly differentiated lymphocytic lymphomas 16 were B, five were T, and nine were "null"; of ten diffuse histiocytic lymphomas, seven were B and three were null. In patients with diffuse lymphoma, those whose malignant cells demonstrated B markers survived significantly longer than those whose malignant cells demonstrated no markers. The prognostic capabilities of the Rappaport histologic classification and surface marker studies were compared. For patients with diffuse lymphomas, classification as B or null more accurately predicted survival than did identification as lymphocytic or histiocytic. However, survival was best predicted by a classification combining the Rappaport histologic scheme with surface marker studies.
Cancer Treat Rep 1977 Sep
PMID:Prognostic significance of lymphocytic surface markers and histology in adult non-Hodgkin's lymphoma. 33 59

A sensitive immunoperoxidase technique for the detection of immunoglobulin (the peroxidase--anti-peroxidase or PAP procedure) has been applied to fixed smears of normal human white cells. IgM was detected in approximately 5% of lymphocytes from normal donors. Most positive cells showed a characteristic 'hairy' peripheral staining pattern; a similar morphological appearance was seen in samples stained for IgD. The membrane (rather than cytoplasmic) localization of this IgM was inferred from the redistribution of staining induced by preliminary incubation of cell suspensions with anti-mu antisera before smearing and staining. B cell-depleted and B cell-enriched suspensions showed, respectively, reduced and increased percentages of IgM-positive cells. IgG was detectable in approximately 25% of normal lymphoid cells. In contrast to the IgM and IgD reaction patterns, these cells commonly showed a discontinuous distribution of reactivity, often localized to the cell uropod or to small cytoplasmic vesicles. However, when cells were prepared at 0 degree C, staining tended to be diffuse. These findings suggested that the PAP procedure was detecting Fc receptor-bearing lymphoid cells which had bound serum IgG. IgG was also demonstrated in normal polymorphs and monocytes. The specificity of this reaction was confirmed by the use of immunoabsorbant-purified antibodies. The possible practical advantages of this immunoperoxidase procedure for the detection of leucocyte immunoglobulin are considered, and the relevance of the demonstration of IgG in non-lymphoid cells to recent reports of this immunoglobulin in Hodgkin's disease and malignant 'reticulum' cells is briefly discussed.
Clin Exp Immunol 1977 Sep
PMID:The detection of membrane and cytoplasmic immunoglobulins in human leucocytes by immunoperoxidase staining. 33 19

In a retrospective clinical study of 208 previously untreated persons with non-Hodgkin's lymphomas the disorders were classified and staged according to the histopathologic criteria of Rappaport, Winter and Hicks and the Ann Arbor clinical staging classification.Nodular types constituted 22% and diffuse types 78% of the lymphomas. The nodular lymphomas were slightly more common in females and were clustered in the age range 30 to 90 years. The diffuse lymphomas were slightly more common in males; the age distribution was bimodal, with one peak in the age range 10 to 19 years and the other in the age range 60 to 69 years, but when the age distribution of the general population in which the lymphomas occurred was taken into account, the incidence of these lymphomas was found to be significantly higher (P < 0.001) in persons more than 69 years of age than in those 40 to 69 years of age.SURVIVAL CORRELATED WITH HISTOPATHOLOGIC TYPE: persons with nodular (follicular) lymphomas and diffuse lymphocytic well differentiated lymphomas had a significantly greater survival (P < 0.05) than those with other diffuse lymphomas. No significant difference in survival was noticed between persons with nodal and extranodal lymphomas.While Rappaport and colleagues' criteria are still very useful, it is important to recognize the nodular lymphoma as a specific entity requiring generally different management from diffuse lymphomas. Appreciation of the different biologic behaviour of the various lymphomas is important to clinicians planning therapy.
Can Med Assoc J 1978 Sep 09
PMID:Non-hodgkin's lymphomas in Saskatchewan: a clinicopathologic study. 35 51

Patients with non-Hodgkin's lymphomas who failed to respond to chemotherapy were treated with low dose fractionated total body irradiation (TBI). Prior to during and after scheduled therapy, their clinical status was evaluated and peripheral blood studies were performed to enumerate EAC and E rosetting cells and to measure proliferative responses to mitogens. Peripheral blood abnormalities were present prior to TBI using these in vitro assays. Patients who obtained clinical remissions following therapy had restoration of mitogen progressive disease had no change in their ability to proliferate in response to mitogens. Normalization of EAC and E rosetting profiles often occurred regardless of clinical response. These data indicate that low dose fractionated TBI produces clinical and in vitro detectable immunological changes. Furthermore, they show that improvement in mitogen responsiveness correlates best with good clinical responses.
Cancer 1978 Sep
PMID:Improvement of in vitro mitogen proliferative responses in non-Hodgkin's lymphoma patients exposed to fractionated total body irradiation. 35 20

Splenectomy is a surgical procedure of medium severity, the mean lethality rate is 1%, the complication rate 10 to 20%. The surgical risk is dependent upon age and general condition of the patient, the severity of the disease, and the experience of the surgeon. The risk of late complications due to surgery is determined mainly by infections as well as ileus, requiring relaparatomy. The risk of infections is higher in children than in adults: one has to be aware of miningitis and sepsis in about 10% of the patients; half of those cases end lethal. An analysis of advantages versus risks of splenectomy must be made for each patient individually. For optimal treatment it is necessary to know the stage of the disease. Concerning M. Hodgkin, explorative laparatomy combined with splenectomy should be performed in stage I to III A. If, however, the surgical risk is rather high primarily and if there are no therapeutical consequences to be expected, splenectomy should not be performed because of the known risks and disadvantages.
Fortschr Med 1978 Sep 28
PMID:[What are the dangers of splenectomy in Hodgkin's disease?]. 35 41

The theoretical power density spectrum S(f) of ion current noise is calculated from several models of the sodium channel gating mechanism in nerve membrane. Sodium ion noise experimental data from the frog node of Ranvier [Conti, F., et al. (1976), J. Physiol. (London) 262:699] is used as a test of the theoretical results. The motivation for recent modeling has been evidence for a coupling between sodium activation and inactivation from voltage clamp data. The two processes are independent of one another in the Hodgkin and Huxley (HH) model [Hodgkin A.L., Huxley, A.F. (1952), J. Physiol. (London) 117:500]. The noise data is consistent with HH, as noted by Conti et al. (1976). The theoretical results given here appear to indicate that only one case of coupling models is also consistent with the noise data.
J Membr Biol 1978 Sep 19
PMID:Comparison of ion current noise predicted from different models of the sodium channel gating mechanism in nerve membrane. 35 12

An immunoperoxidase technique has been applied to the detection of intracellular immunoglobulins at the light and ultrastructural levels in three untreated cases of Hodgkin's disease. The results are compared with those obtained in three treated cases. In both groups, 20-90% of malignant cells had intra-cytoplasmic immunoglobulins. There was no correlation between the percentage of immunoglobulin-containing cells and the histological type or the stage of the disease. At the ultrastructural level, immunoglobulins were constantly localized on cytoplasmic ribosomes, the later being either free in the cytoplasm or bound to the endoplasmic reticulum and to the external envelope of the perinuclear space. In addition, a very few malignant cells exhibited immunoglobulins within their perinuclear space and their endoplasmic reticulum. These results demonstrate that immunoglobulins in Hodgkin's malignant cells are present on the cellular sites of protein synthesis. They appear to be retained in their cytoplasm, and to be secreted only very occasionally. The significance of these findings as to the cellular origin of malignant cells in Hodgkin's disease is briefly discussed.
Br J Haematol 1978 Sep
PMID:Hodgkin's disease: ultrastructural localization of intra-cytoplasmic immunoglobulins within malignant cells. 36 Oct 65

Although the term thymic hyperplasia is used most commonly to indicate the occurrence of germinal centers in the thymus, cognizance must be taken of the fact that such centers may occur in apparently normal thymuses in both children and adults. A concept of thymic compartmentalization is proposed with origin of germinal centers in the perivascular space (extraparenchymal compartment) of the thymus. These germinal centers contain a high percentage of B lymphocytes in contrast to the true thymic parenchyma. Although the significance of germinal centers in the thymus parenchyma. Although the significance of germinal centers in the thymus in myasthenia gravis remains controversial, removal of nonneoplastic thymus in this condition is of proven therapeutic value. A variety of neoplasms originating in the thymus have previously been lumped together under the single term "thymoma." It is apparent, however, that thymoma, thymic carcinoid, various lymphomas, and germ cell tumors that arise in the thymus differ not only pathologically but also in their clinical behavior. Thymoma is regarded as an epithelial neoplasm and ultrastucturally is characterized by many desmosomes and tonofilaments. The lymphocytes do not behave in a malignant manner, and lymphomas of the thymus should be sharply separated from true thymoma. Poorly differentiated thymic carcinoma and histiocytic lymphoma may be distinguishable only by the electron microscopic demonstration of desmosomes and filaments in the thymic carcinoma. The evidence that Hodgkin's disease of the thymus ("granulomatous thymoma") is not a variant of thymoma appears overwhelming. Lymphoblastic lymphoma of the thymus is a distinctive neoplasm that is especially prevalent in teenage males. High levels of terminal transferase characterize the lymphoblasts and there is a striking tendency for leukemia to occur. Thymic carcinoid is usually nonfunctional, although one-third of the reported cases are associated with Cushing's syndrome. On light microscopy a ribbon pattern and punctate necroses are characteristic of thymic carcinoids. Electron microscopic demonstration of many dense core granules is invaluable in establishing this diagnosis. An important clue to the diagnosis of thymic seminoma (a neoplasm that shows the same radiosensitivity as its testicular counterpart) is the frequent presence of epithelioid and giant cell granulomas and germinal centers. Separation of the various thymic neoplasms described not only is justifiable on pathologic grounds but is often essential for appropriate patient investigation and treatment.
Hum Pathol 1978 Sep
PMID:Thymic hyperplasia and neoplasia: a review of current concepts. 36 41

A 60-year-old man receiving antituberculous and corticosteroid therapy for a granulomatous disease of uncertain etiology was found to have a chorioretinal mass in his right eye. Fluorescein angiography showed blockage of fluorescence by the mass and late leakage. Autopsy findings were compatible with Hodgkin's disease with disseminated nocardiosis caused by Nocardia asteroides. Organisms typical of Nocardia were found in the choroid and subretinal space. The patient's history, ophthalmic examination, and fluorescein angiographic findings suggested a type of chorioretinal involvement.
Am J Ophthalmol 1978 Sep
PMID:Endogenous intraocular Nocardia asteroides in Hodgkin's disease. 36 28

Fifteen cases with haemolytic changes in the region of the eye, i.e. ten cases of lymphocytic sarcoma, two cases of M. Hodgkin, two cases with reticulosarcoma and one of acute lymphatic leukosis are presented. With cytologic punctions of the eyelids and of the retrobulbar tissue, typical cytomorphologic findings for above mentioned haemoblastoses were obtained.
Klin Monbl Augenheilkd 1978 Sep
PMID:[Cytomorphologic findings in the diagnosis of intraocular lymphocytic tumors (author's transl)]. 37 43


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