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Query: UMLS:C0026764 (multiple myeloma)
 36,148 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We assessed the risk of occurrence of cancer associated with exposure to metronidazole in the 771 female residents of Rochester, Minnesota, who were treated with metronidazole for vaginal trichomoniasis during the period 1960 through 1969 and were followed up for a total of 12,628 person-years. Standardized morbidity and mortality ratios were determined by using an expected number calculated by applying age-specific incidence rates from Rochester studies and Cancer Surveillance, Epidemiology, and End-Results Reporting (SEER) data to the person-years of follow-up. The overall standardized morbidity ratios for cancer at all sites were 1.4 (Rochester, 1978 through 1983), 1.5 (SEER data for Iowa, 1978 through 1981), and 1.2 (SEER data for Connecticut, 1978 through 1981). By site of the cancers, the standardized morbidity ratios greater than unity were those for malignant lesions of the lung, breast, thyroid, bladder, brain, kidney, nasopharynx, and oral cavity, as well as for multiple myeloma and malignant melanoma; however, the only significantly elevated standardized morbidity ratio was that for bronchogenic carcinoma. After adjustment for smoking status, the standardized morbidity ratio for bronchogenic cancer was 2.5 (95% confidence interval of 1.3 to 4.4). The standardized mortality ratio for cancer at all sites was 1.4 (95% confidence interval of 0.9 to 2.2). The analysis of these data suggests no significant increase in cancer-related morbidity or mortality for women exposed to metronidazole for treatment of vaginal trichomoniasis.
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PMID:Cancer after exposure to metronidazole. 333 6

Serum concentrations of immunoreactive parathyroid hormone (iPTH) measured with a mid-region specific radioimmunoassay and total calcium were correlated in 300 healthy subjects and 158 patients with surgically verified primary hyperparathyroidism (HPT). All the healthy individuals could be separated from the patients by a monoexponential declining curve in which iPTH at concentrations of 0.60 micrograms/l and 0.33 micrograms/l corresponded to calcium concentrations of 2.20 mmol/l and 2.60 mmol/l, respectively. In 22 patients more than one sample was analysed and serum iPTH and calcium were inversely correlated. In contrast, three patients with parathyroid carcinoma showed no reciprocal fluctuations between serum iPTH and calcium. Of 75 patients with hypercalcaemia due to malignant diseases (metastatic mammary carcinoma, bronchial carcinoma, renal carcinoma, myelomatosis), 62 had a normal iPTH/calcium relationship. Two patients with myelomatosis had a temporary elevation of serum iPTH and calcium due to renal impairment. One patient with bronchial carcinoma probably had ectopic production of iPTH. The remaining 10 patients (six mammary carcinomas and four bronchial carcinomas) were found in the pathological iPTH/calcium range. In conclusion, we have demonstrated that an inverse relationship exists between serum iPTH and calcium in patients with non-malignant, primary HPT. Evaluation of iPTH and calcium in the same serum sample gave a correct diagnosis in more than 90% of patients with primary HPT.
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PMID:Improved diagnosis of primary hyperparathyroidism by defining the inverse relationship between serum immunoreactive parathyroid hormone and calcium. 374 90

A retrospective cohort study was performed on a group of 664 male workers employed for at least one month during the period 1942-1979 in a chemical factory. Both established and suspected carcinogens had been handled in the plant, primarily piperazine, but also urethane, ethylene oxide, formaldehyde, and organic solvents. A significantly increased mortality, compared with the regional death rate, was observed in the cohort. The increase was mainly due to violent deaths and cardiovascular diseases. No rise in death rates was observed for asthma, bronchitis or emphysema, in spite of other evidence of a high risk of occupational asthma, due to exposure to piperazine. A statistically significant increase in cancer morbidity was observed for malignant lymphoma/myelomatosis when an induction latency time of at least 10 years was used. Furthermore, an increase in bronchial cancer was noted, but it was statistically significant only when an induction-latency time of at least 15 years was used. A case-referent study within the cohort did not reveal any significant association between any specific chemical exposure and cancer morbidity.
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PMID:Mortality and cancer morbidity among workers in a chemical factory. 382 3

Three clones of ectopic hormone-producing cells from a single human neoplasm (bronchogenic carcinoma) show different rates of synthesis and secretion of chorionic gonadotropin and its alpha and beta subunits. For each clone, the amount of one or the other subunit always exceeded that of the complete hormone molecule. These findings may be analogous to unbalanced immunoglobulin chain synthesis in certain forms of myeloma.
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PMID:Subunits of human chorionic gonadotropin: unbalanced synthesis and secretion by clonal cell strains derived from a bronchogenic carcinoma. 451 12

Lymphocytes obtained from hilar and bronchial lymph nodes from 23 patients undergoing radical surgery for carcinoma of the bronchus were fused with established rat or mouse myeloma lines. 62% of the resultant hybrids were found to be secreting human Ig detected by a sensitive staphylococcal Protein A-coupled SRBC assay. Immunoglobulins synthesized by such hybrids were internally labelled with 3H-lysine and their antibody activity against a variety of membrane preparations determined. Nine monoclonal antibodies were found which bound to molecules on lung-cancer membranes and not on normal lung membranes from the same patient.
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PMID:Human monoclonal antibodies to lung-cancer antigens. 724 54

Immunoscintigraphy of haematopoetic bone marrow was compared to conventional bone scanning in 141 patients with malignant disease. Forty patients had breast cancer, 25 prostatic carcinoma, 14 kidney or bladder cancer, 13 bronchial carcinoma, 39 malignant lymphoma and 10 multiple myeloma. A total of 18,800 skeletal regions were evaluated. Marrow scans showed more metastatic lesions than bone scanning in all patient subgroups. Computerized tomography was concordant with bone marrow scintigraphy in 83.3% of 323 skeletal sites. Bone marrow scans in 30 control patients with fever of unknown origin were abnormal only in 3 patients and in only 7 out of 2,135 skeletal regions examined. In patients with malignant lymphoma, bone marrow histology or aspiration cytology was concordantly positive in 14 and concordantly negative in 17 patients. We conclude that immunoscintigraphy of haematopoetic bone marrow provides a reliable, sensitive and safe novel approach for non-invasive detection of metastatic spread to the skeleton.
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PMID:Bone marrow immunoscintigraphy compared with conventional bone scintigraphy for the detection of bone metastases. 830 23

Multiple myeloma (MM) is a hematological malignancy characterized by the occurrence of plasma cell tumor within the bone marrow. Extramedullary plasmacytomas form a small percentage of plasma cell tumors, and although 80-90% of extramedullary lesions occur in the head and neck, pulmonary plasmacytomas are found to be a very uncommon clinical entity. Hereby, we describe a case of a patient with pulmonary plasmacytoma, who developed nodal and pulmonary MM with a pleural effusion, the radiological appearance of which mimicked bronchogenic carcinoma.
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PMID:Pulmonary and nodal multiple myeloma with a pleural effusion mimicking bronchogenic carcinoma. 2016 Mar 66

Black brown hyperpigmentation of the mucosae, sunexposed skin, palmar creases and frictional sites (Addisonian pigmentation) is characteristic of Addison disease. However, it can also occur as a paraneoplastic manifestation of tumours like bronchogenic carcinoma. Acquired ichthyosis starts later in life and can also be a paraneoplastic presentation. We report a unique combination of paraneoplastic Addisonian pigmentation and acquired ichthyosis as presenting features in a patient with undiagnosed multiple myeloma. To the best of our knowledge this combination of paraneoplastic dermatosis has not been documented before in multiple myeloma. It is concluded that the presence of more than one suspicious dermatosis may be an indicator of being paraneoplastic requiring necessary work-up.
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PMID:Paraneoplastic Addisonian pigmentation and acquired ichthyosis as presenting features of multiple myeloma. 2127 85


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