Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027819 (neuroblastoma)
 27,800 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A cerebellar neoplasm of an 18-month-old boy was examined with both the light and electron microscopes. The diagnosis of neuroblastoma was made on the basis of the presence of numerous synaptic vesicles in the great majority of cell processes and the occasional complete synapses within the tumor tissue.
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PMID:Fine structure of a cerebellar neuroblastoma. 65 73

The utility and limitations of 67Ga scintigraphy in children with solid tumors were evaluated. Thirty-five patients with malignancies (13 lymphoreticular neoplasms, 11 soft-tissue sarcomas, 8 neuroblastomas, and 3 primary bone tumors) had a 67Ga-citrate scan as part of their clinical evaluation. The sensitivity and specificity of the test were analyzed for the different tumor types. The overall sensitivity of the 67Ga-citrate scan for the lymphoma group was 87%. Higher values were obtained for the mediastinal and abdominal regions. Ninety-three per cent of the involved sites were correctly identified by 67Ga scintigraphy in the soft-tissue sarcoma group. Small lung metastases, however, were missed on scan. Thus, 67Ga scans should be complemented with chest radiographs and whole chest tomograms for both initial evaluation and follow-up in those patients. 67Ga had low sensitivity for neuroblastoma.
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PMID:Scintigraphic evaluation of childhood malignancies by 67Ga-citrate. 66 63

We reviewed 105 cases of neuroblastoma, which were seen at the Buffalo Children's Hospital between 1936 and 1976. We describe seven patients with primary neuroblastoma of the head and neck. The results of postmortem examination in two of these patients proved without any doubt that the tumor was primarily in the head and neck region. Although metastasis of neuroblastomas to the head and neck from more common primary sites in the abdomen, pelvis, or thorax is common, to our knowledge, well-documented primary head and neck lesions are quite rare. The prognosis of invasive neuroblastoma of the head and neck is poor, with rapid and widespread metastasis being the rule. However, some success has been reported with early and massive therapy that involves surgery, chemotherapy, and radiation therapy.
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PMID:Neuroblastoma of the head and neck. 66 47

The effects of high concentrations of CO2 on experimental murine neuroblastoma tumor were studied. Similar to the experience with the animal model of Wilms' tumor, the local growth of this neuroblastoma model was not affected by concentrations of 76% and 55% of CO2 applied for 10 and 30 minutes. The tumor bearing animals exposed to different CO2 concentrations tended to develop metastases more frequently than the control groups, although no change in survival was noted. Different animals and additional tumor models could be used by others to study the effects of different CO2 concentrations at different exposure times.
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PMID:A study of the effect of CO2 on experimental neuroblastoma. 67 22

A human neuroblastoma from a female patient was directly transplanted into nude mice and serial transplantation was established. Histology of the transplanted tumor was almost the same as that of the patient. During serial transplantation, a high frequency of metastasis to distant organs such as ovaries, lymph node and cerebrum was observed, especially in the ovaries where the metastatic rate reached to 66%. Regarding the distribution of organs involved, there is close similarity between that in the patient with neuroblastoma and tumor-bearing mice. This transplantable human neuroblastoma provided a unique research tool for studies on its morphological and biological nature, including metastasis.
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PMID:Human neuroblastoma serially transplanted in nude mice and metastases. 67 49

Initial urinary catecholamine metabolite and amino acid excretion patterns were examined in 54 children with neuroblastoma. The relationships between prognosis and age at diagnosis, stage of disease, primary site, and histologic grade of tumor were similar in this population to those found in previous studies, but only age and stage were found to be independent prognostic variables. Prognosis in disseminated disease was found to correlate directly with the urinary vanilmandelic acid (VMA)/homovanillic acid (HVA) ratio but not with the absolute levels of HVA. The presence of the dopa metabolite, vanillactic acid, as well as increased amounts of cystathionine and/or low levels of VMA indicated poor prognosis. These results are consistent with the hypothesis that biochemically primitive neuroblastomas deficient in dopamine beta-hydroxylase are move virulent than their mature analogues which produce epinephrine, norepinephrine, and their metabolites.
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PMID:Initial urinary catecholamine metabolite concentrations and prognosis in neuroblastoma. 68 87

A quantitative estimate of the cellular tubulin concentration can be obtained by the use of a radioimmunoassay based upon the competition between tubulin in cell extracts and a known amount of radioactively labeled homogeneous tubulin during binding to a limited amount of anti-tubulin antibodies. This assay shows that a variety of widely used tissue culture cells (mouse L cells, mouse 3T3 cells, chick embryo fibroblasts) have a tubulin content which corresponds to approximately 2.5--3.3% of their total protein. Transformation of mouse 3T3 cells by the DNA virus SV40, and of chick embryo cells by the RNA Rous sarcoma virus, does not change the intracellular tubulin concentration. Transformed cells of brain origin, such as some glia tumor cell lines and some neuroblastoma cell lines, have a much lower tubulin content than does normal brain tissue. The intracellular concentration of tubulin in mouse 3T3 cells is discussed in relation to the number of microtubules detected during interphase by immunofluorescence microscopy. These results are also discussed in view of a mechanism of microtubule elongation in vivo driven by self-assembly.
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PMID:Radioimmunoassay for tubulin: a quantitative comparison of the tubulin content of different established tissue culture cells and tissues. 68 94

Five cases of histologically confirmed olfactory neuroblastoma (esthesioneuroblastomas) have been studied by computed tomography (CT). Both the clinical symptoms (in particular, unilateral nasal obstruction and recurring epistaxis) and radiological findings (opacity of the paranasal sinuses) are nonspecific. Computed tomography shows a contrast enhancing mass-lesion and is more useful than conventional tomography in estimating its extension and the associated bone destruction, secondary reaction of sinusitis, and tumoral calcification. In the two cases in which the tumor was associated with exophthalmos, CT demonstrated that the muscular cone acts as a barrier preventing tumoral invasion. In cases wtih intracranial involvement, it appears that the attenuation values can be useful for differentiating between invasion by contiguity (two cases) versus metastasis (one case). Computed tomography is valuable in the follow-up and during and after radiotherapy of the tumor.
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PMID:Computed tomography in olfactory neuroblastoma: one case of esthesioneuroepithelioma and four cases of esthesioneuroblastoma. 70 20

In the application of hyperthermia to cancer management, it would be useful to know the temperature/tim profile of heated tissues, including the tumor and surrounding normal structures. To obtain this information, knowledge of thermal conductivity and diffusivity of the tissues is required. The thermal conductivity of neuroblastoma was determined by a transient technique to be 89% of the thermal conductivity of water at 25 degrees, 37 degrees, and 44 degrees C. From the latter measurements, the thermal diffusivity of neuroblastoma cells was estimated as 93% of the thermal diffusivity for water. Further, in this study of neuroblastoma cells, the water content was measured as 87.4 g/100 ml of cells, a rather high value not atypical of tumor cells. From literature values of density, specific heat, and thermal conductivity, values for the thermal diffusivity of a variety of normal tissues were estimated. The thermal diffusivity values of normal tissues and neuroblastoma cells exhibit an excellent correlation with water content.
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PMID:Thermal conductivity and diffusivity of neuroblastoma tumor. 71 75

Congenital neuroblastoma is a well-recognized entity with a very favorable prognosis for tumor cure. However, a newborn with neurologic deficit owing to intraspinal extension of this tumor is very unusual. Eleven such cases in the world literature are reviewed, and an additional case of a new born with paralysis and a neurogenic bladder at birth is presented in detail. The prognosis for tumor cure is excellent regardless of the mode of therapy used. Because of this fact, treatment should include safe surgical decompression and chemotherapy only. The outlook for the return of normal neurologic function is poor.
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PMID:Congenital intraspinal neuroblastoma. 76 May 17


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