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Query: UMLS:C0037116 (silicosis)
 1,822 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In addition to metastases, the differential diagnosis of pulmonary nodules also includes tuberculosis, sarcoidosis, and silicosis. Rarer diseases such as amyloid tumors, rheumatic nodules, and plasma-cell granulomas can, depending on the clinical situation, be the cause of this finding. For the example of the clinical picture of pulmonary hyalinizing granuloma, the differential diagnosis of multiple pulmonary nodules is illustrated under consideration of the pathognomonic, morphologic observations.
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PMID:[Differential diagnosis of multiple pulmonary coin lesions--pulmonary hyaline granuloma]. 886 95

In 50 lung cancers (25 small cell lung cancers, 17 squamous cell carcinomas, 8 adenocarcinomas) pulmonary, mediastinal and cervical lymph node-metastases were analyzed. Lymph-node "skipping" was demonstrated in 46% of the investigated tumors. In seven of these cases the lymph nodes were skipped, which showed complete hyalinization as a consequence of preexisting anthracosilicosis. In 5 other tumors additional lymph nodes with preserved structure were skipped by the metastatic process. Fibrosis of lymphatic tissue after tuberculosis or exposure to ionizing radiation were further reasons for lymph-node skipping. The skipping of intact lymph nodes can be explained by anatomically demonstrable intra- and perinodal short circuit connections. Apart from that, preexisting lymph node changes (silicosis, fibrosis) play an important part.
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PMID:[Discontinuous lymph node metastases ("skipping") in malignant lung tumors]. 932 38

The early detection of metastases from medullary thyroid cancer (MTC) is important because the only curative therapy consists in surgical removal of all tumour tissue. There is no single sensitive diagnostic imaging modality for the localization of all metastases in patients with MTC. Therefore, in many cases several imaging modalities (e.g. ultrasonography, magnetic resonance imaging, computerized tomography and scintigraphy using pentavalent technetium-99m dimercaptosuccinic acid, thallium-201 chloride, indium-111 pentetreotide, anti-CEA antibodies or metaiodobenzylguanidine) must be performed consecutively in patients with elevated calcitonin levels until the tumour is localized. In this prospective study, we investigated the value of fluorine-18 fluorodeoxyglucose positron emission tomography ([18F]FDG PET) in the follow-up of patients with MTC. [18F]FDG PET examinations of the neck and the chest were performed in 20 patients with elevated calcitonin levels or sonographic abnormalities in the neck. Positive [18F]FDG findings were validated by histology, computerized tomography or selective venous catheterization. [18F]FDG PET detected tumour in 13/17 patients (nine cases were validated by histology, four by computerized tomography). Five patients showed completely negative PET scans (of these cases, one was true-negative and four false-negative). One patient with [18F]FDG accumulation in pulmonary lesions from silicosis and one patient with a neck lesion that was not subjected to histological validation had to be excluded. Considering all validated localizations, [18F]FDG PET detected 12/14 tumour manifestations in the neck, 6/7 mediastinal metastases, 2/2 pulmonary metastases and 2/2 bone metastases. In two patients with elevated calcitonin levels, no diagnostic modality was able to localize a tumour. The sensitivity of [18F]FDG PET in the follow-up of MTC was 76% (95% confidence interval 53%-94%); this is encouraging. [18F]FDG PET promises to be a valuable diagnostic method, especially for the detection of lymph node metastases, surgical resection of which can result in complete remission.
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PMID:The value of fluorine-18 fluorodeoxyglucose PET in patients with medullary thyroid cancer. 1085 2

39 years old man with granulomatous lesions in both lungs caused by occupational contact with glass fibers was described. He has been working as an bricklayer-plasterer for 18 years and was in contact with lime, cement, plaster, asbestos, dust of coal and wood and with glass fibers. For the last two years before admission in 1993 he has had frequent bronchial infections. On admission he was in good general condition, his spirometric examination and blood gases were within normal limits. On chest x-ray disseminated lesions were found. Those lesions were of the round shapes on chest CT. Many sputum cultures for tubercle bacilli were negative. ANA and ANCA were not found in the serum. ACE was within normal limits. No precipitins to environmental antigens were found. Cancer metastases were suspected and lung biopsy during videothoracoscopy was done. Many foreign body type granulomas were found throughout the specimen. The character of the lesions was not typical for tuberculosis, sarcoidosis, extrinsic allergic alveolitis, silicosis or asbestosis. There are some reports concerning the possibility of development of such lesions after the exposition to glass fibers. We suspect that case is an example of such pathology. His occupational exposition was stopped in 1993 and he was observed without treatment. During the 5 years of observation (up till 1998) he was in good health with stable chest x-ray picture and results of respiratory system function.
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PMID:[Granulomatous lung lesions after occupational exposure to glass fibers]. 1100 67

Silicosis is a typical occupational disease, although some cases caused by non-industrial exposure have also been reported. We saw a 53-year-old male gardener with recurrent non-productive cough. A routine radiograph of the chest showed bilateral pulmonary nodules and subsequent computed tomography suggested that the infiltrates could be metastases. Open lung biopsy revealed nodules consisting of fibrotic tissue while the presence of birefringent silica particles was observed by polarised light microscopy. Mineralogical analysis of the substrata from the patient's workplace revealed an SiO(2) concentration of 31%. This case indicates that the inhalation of siliceous particles in a closed environment such as a greenhouse is a risk factor for silicosis.
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PMID:Gardening in greenhouses as a risk factor for silicosis. 1274 May 24

Miliary mottling on chest radiography is seen in miliary tuberculosis, certain fungal infections, sarcoidosis, coal miner's pneumoconiosis, silicosis, hemosiderosis, fibrosing alveolitis, acute extrinsic allergic alveolitis, pulmonary eosinophilic syndrome, pulmonary alveolar proteinosis, and rarely in hematogenous metastases from the primary cancers of the thyroid, kidney, trophoblasts, and some sarcomas. Although very infrequent, miliary mottling can be seen in primary lung cancers. Herein, we report the case of a 28-year-old female with chest X-ray showing miliary mottling. Thoracic computed tomography (CT) features were suggestive of tuberculoma with miliary tuberculosis. CT-guided fine needle aspiration cytology confirmed the diagnosis as lower-lobe, left lung non-small cell carcinoma (adenocarcinoma). It is rare for the non-small cell carcinoma of the lung to present as miliary mottling. The rarity of our case lies in the fact that a young, non-smoking female with miliary mottling was diagnosed with non-small cell carcinoma of the lung.
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PMID:A rare case of non-small cell carcinoma of lung presenting as miliary mottling. 2364 61

The differential diagnosis of multinodular lung disease includes miliary tuberculosis, pneumoconiosis, sarcoidosis and metastases. In many cases, high-resolution computed tomography can help the diagnosis, but sometimes, tissue diagnosis may be necessary. We report a case of malignant lymphoma on a background of pre-existing silicosis, distinguished from miliary tuberculosis by percutaneous needle lung biopsy.
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PMID:Multinodular lung infiltrate in a patient with lymphoma: metastasis, tuberculosis or other? 2974 22