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Query: UMLS:C0242379 (lung cancer)
 71,905 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Gallium-67 citrate scanning was prospectively evaluated in 55 patients who had lung lesions suspected to be primary carcinoma on chest x-ray films and in whom subsequent histologic diagnosis was obtained. Of 47 patients with histologically proved carcinoma of the lung, 44 (94 per cent) had a positive 67Ga scan. No patient with a positive scan had a benign lesion, so that the positive scan accuracy rate was 100 per cent. All 8 patients with a benign lesion and 3 patients with a malignant lesion had negative scans, for a negative scan accurary rate of 72 per cent for benign lesions. These results give statistical validity for the usefulness of the 67Ga scan in diagnosing carcinoma of the lung (p less than 0.001). Tumor cell type had little effect on the sensitivity of 67Ga scan. The 67Ga scan was equally useful in the evaluation of peripheral and central lesions. There was little difference amount T1, T2, and T3 classified lesions in their ability to take up 67Ga. The 67Ga scan was competitive with mediastinoscopy in assessing mediastinal lymph node metastases and provides a noninvasive method of assessing hilar lymph node metastases. There was a good correlation between the clinical staging of patients with lung cancer based on a chest x-ray film and 67Ga scanning and the staging after surgical treatment based on the histology of the resected specimens.
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PMID:Gallium-67 scanning for carcinoma of the lung. 97 11

Hyperamylasemia and hyperamylasuria were found in two patients with carcinoma of the pancreas and in two other patients with carcinoma of the lung. Detailed isoamylase analyses were conducted on the serum amylase of three and the urine amylase of all four of these patients, using a modified chromatographic procedure. The studies demonstrated the existence, in one of the lung cancer patients and in one of the patients with pancreatic cancer, of an unusual component of amylase given the designation "Y." This component had also been noted in some human milk samples. In one of the lung cancer patients, an isoamylase was found in the serum and urine after radiation treatment that was close to but not identical to the Y isoamylase in chromatographic position. Although a relationship of isoamylase component Y to generating tissue is suggested by these findings, such a relationship of isoamylase component Y to generating tissue is suggested by these findings, such a relationship remains to be proven.
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PMID:Unusual isomaylase in cancer-associated hyperamylasemia. 99 Nov 24

Of the 178 consecutive mediastinoscopies performed at the Istituto Nazionale per lo Studio e la Cura dei Tumori of Milan from 1967 to 1974 145 were performed for diagnostic purposes and 33 for the pre-operative evaluation of resectability in cases of proven lung carcinoma. Mediastinoscopy is a very useful procedure for obtaining a definite pathological diagnsis in indeterminate mediastinal and pulmonary lesions. In succases, mediastinoscopy should precede any attempt at therapy, as 1/3 primary mediastinal lymph node lesions are benign and about 30% of suspected mediastinal tumors or lymphomas are actually misdiagnosed lung cancers (mainly oat-cell carcinomas). As to the role of mediastinoscopy in the assessment of lung cancer resectability, the current view is that it plays a part together with tomography and bronchoscopy in the clinical staging of this neoplasm, but it is no longer relied upon alone. It is mandatory in every case of suspected or probable mediastinal invasion and the criteria for inoperability are the following: spread to high paratracheal or contralateral nodes, direct invasion of the mediastinal fat, fixity of the neoplasm to the trachea or vertebral bodies. In such cases mediastinoscopy will prevent a useless exploratory thoracotomy.
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PMID:[Evaluation of 178 mediastinoscopies (author's transl)]. 101 18

Lymphocyte responses to lung carcinoma-associated antigens were assessed by measuring 3H-leucine incorporation in 20 lung cancer patients, 37 patients with other neoplasms, and 20 normal subjects. Antigens were prepared from 9 lung carcinomas by means of 3M KCl extraction. Fifteen of 20 lung cancer patients showed increased leucine incorporation to one or more tumor antigens, whereas only 5 of 20 normal subjects responded. Lymphocyte responses to both autologous and allogeneic tumor extracts were observed. Eighteen lung cancer patients were tested with the most reactive antigen and 13 responded. Seven of 37 patients with other neoplasms and 2 of 18 normal subjects reacted to this antigen. Significantly more lung cancer patients reacted to the tumor extract than to an extract of uninvolved lung from the same patient. The reactivity of lymphocytes from lung cancer patients clinically free of disease was significantly greater than that of patients with disseminated disease. Extraction of lung carcinomas with 3M KCl is a useful technique for solubilizing tumor-associated antigens (TAA). Antigenic activity may be followed in vitro by measuring lymphocyte 3H-leucine incorporation.
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PMID:Lymphocyte responses of lung cancer patients to tumor-associated antigen measured by leucine incorporation. 117 75

Two hundred and twenty-eight patients who were treated for carcinoma of the lung were followed and their plasma CEA levels assessed at intervals during the course of the disease. In addition, plasma samples were taken from 487 healthy blood donors for comparison as a control. CEA assay is not selective or specific enough, at this time, to be used for screening purposes even though 68% of the patients who have lung cancer will have an elevated concentration of CEA regardless of the histological cell type. In patients with plasma levels of CEA above 15 ng/ml the prognosis is uniformly poor. CEA in the author's view does have value as a prognostic marker capable of suggesting the successful resection of a tumor and to a lesser degree confirming the clinical objective response to the radiotherapy or chemotherapy. It was found that the presence of CEA was not necessarily related to the volume of the tumor or the site of organ metastasis, but reflects the metabolic properties and characteristics of the individual tumor as it occurs in the patient.
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PMID:Carcinoembryonic antigen in 228 patients with carcinoma of the lung. 120 64

This study proposes a radiological, topographical and morphological classification of primary carcinoma of the lung based on a large radiographic case-series of the National Cancer Institute of Milan checked anatomopathologically. The aim is to standardise the X-ray findings and so make for easier understanding and more rewarding cooperation among those engaged on the diagnosis and treatment of this tumor. The classification of lung cancer into central and peripheral only is felt, in the light of present knowledge, to be inadequate. It is therefore suggested that central lung cancers be divided into purely endobronchial, endoperibronchial and exobronchial, taking into account both the repercussions on ventilation and extracentral spread. For peripheral lung carcinomas more detailed morphological and topographical features are considered in order to pinpoint the tumor and its hilomediastinal spread, especially in the case of paracentral tumors. A brief reference is made to the more relevant radiodiagnostic procedures.
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PMID:[Radiological study of the topography and morphology of pulmonary cancer]. 120 41

Previously the authors demonstrated limited effectiveness of tumor specific active immunotherapy adjunct to radical surgery in patients with lung cancer. In order to improve the therapeutic effectiveness, a patient with inoperable lung carcinoma was treated with a radical surgery, tumor vaccination, and "unblocking procedures" which consisted of splenectomy and throacic duct canulation. In vitro studies demonstrated the evidence of sensitization of the patient against his own tumor, removal of blocking factor by the thoracic duct fistual from the circulation.
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PMID:Thoracic duct cannulation in a patient with lung cancer. 126 18

Antibodies directed against the central nervous system were looked for by indirect immunohistochemistry in the sera of 8 patients with paraneoplastic neurological syndrome (group 1), 21 cancer patients without neurological signs, 23 patients with miscellaneous neurological diseases and 63 normal subjects (groups 2 to 4). Four patients in group 1 had very high titres of antibodies. In 2 patients with small-cell lung carcinoma associated with sensory neuropathy the antibody recognized the cytoplasm and nucleus of all neurons. A 37 Kd protein was recognized by Western blot. A woman with cancer of the ovary and cerebellar syndrome exhibited an antibody against Purkinje's cell cytoplasm with a band of about 50-55 Kd at Western blot. In a woman with chronic uveitis and cerebellar atrophy with disappearance of Purkinje's cells the antibody (in blood and CSF) recognized certain layers of the retina as well as glial cells and cells present in the subependymal areas of the brain. Two bands of 46 and 59 Kd were revealed by Western blot. Immunoglobulins were detected in the cytoplasm of white matter cells in the cerebellum and brain stem. Among the other groups, one patient with lung cancer had a moderate titre of neuronal antinuclear antibody. The Western blot test was negative. The relevance of these antibodies for the diagnosis and treatment is discussed.
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PMID:[Autoantibodies in paraneoplastic polioencephalomyelitis: 8 cases]. 129 56

The levels of tumor-associated antigens (TAAS) corresponded to monoclonal antibodies WLA-2C4 and CL-3 in sera of 57 lung cancer patients, 100 healthy adults and 50 non-tumor disease patients were assayed with SABC-ELISA of immunobinding inhibition test. The threshold values of WLA-2C4 and CL-3 (RBI) were 12% and 36%, respectively. The positive results of lung carcinomas with at least one of the two TAAS were as follows: squamous cell carcinoma 89%; adenocarcinoma 83%; small cell carcinoma 67% and their mean positive rate was 79%. Whereas the positive rate in healthy adults and non-tumor disease patients was only 6%. These results indicate that using monoclonal antibodies WLA-2C4 and CL-3 simultaneously may be helpful to the serological diagnosis of lung carcinoma.
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PMID:Detection of antigens associated with lung carcinoma in sera by monoclonal antibodies WLA-2C4 and CL-3. 130 59

Tumor DNA content (ploidy) was analyzed by use of flow cytometry (FCM) in 17 lung cancer cell lines which were subcultured in our laboratory. The study included 6 adenocarcinomas, 2 squamous cell carcinomas, 1 adenosquamous cell carcinoma, 5 large cell carcinomas, and 3 small cell carcinomas. Of the 17 lung carcinoma cell lines, 15 revealed aneuploid patterns with DNA index above 1.1, whereas one had diploid. The mean DNA index (DI) in adenocarcinoma, was 1.34 +/- 0.09, DI 1.6, in squamous cell carcinoma, DI 1.0 in adenosquamous cell carcinoma, DI 1.70 +/- 0.66 in large cell carcinoma, and DI 1.29 in small cell carcinoma. Of the 17 cell lines, three lines showed multiploid patterns with clinically poor prognosis and indicated heterogeneity. Flow cytometric DNA analysis using lung cancer cell lines could provide further basic study of lung cancer cells and give a useful information on the degree of the malignancy clinically.
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PMID:Flow cytometric DNA analysis of lung cancer cell lines. 130 14


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