[Differential diagnosis of parotid swelling].
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Biomedical subjects
Publications and source records attributed to M Bodó.
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Aspiration biopsy cytology was employed by the authors in 250 cases for pathological changes in the mammary gland, in 183 cases the cytological investigation was followed by the histological one. The method proved to be of diagnostic value in 86% (sensitivity). Together with other methods of clinical diagnostics (palpation, mammography, xeromammography, thermography) the method concerned may widen the diagnostic opportunities and allows getting the information on the morphological nature of the tumor. Due to this, the practical application of this prompt, economic and devoid of any complications method seems to be rational. It is suggested to employ it routinely in the clinical practice.
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The authors performed fine needle aspiration biopsy in 174 patients with mammary lesions. In 124 cases the cytologic examination was followed by surgery combined with histologic examination. The cytologic findings can be considered to be satisfactory in regard to literary data. In principles, however, it cannot substitute the histologic examination. In combination with the other diagnostic methods aspiration cytology may yield useful diagnostic information. In case of recurrences, inoperable tumors and contralateral metastases the fine needle aspiration biopsy cytology is of diagnostic value.
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The correlations between physiological modalities in microwave field-activated systemic or localized regulatory mechanisms with changes in the central nervous system (CNS) seem not to be identical. These problems are important because of the increased number of radiating appliances, e.g. portable radios and mobile telephones. In two series of experiments on anaesthetized rats (N = 40) (i) before and after 10 min, whole body exposures to 2.45 GHz CW microwaves, and (ii) during 30 min exposures to 4 GHz amplitude modulated (AM, 16 Hz) microwaves, the effects on the CNS were observed simultaneously with those on the cardiovascular system by quantitative polygraphic measurement. In acute experiments on rats, electroencephalograms (EEG), rheoencephalograms (REG) as an index of cerebral blood flow (CBF), brain tissue DC impedance and temperature and ECG were recorded simultaneously. The total power of EEG spectra increased after whole body 30 mW/cm2 2.45 GHz CW exposure for 10 min. No changes occurred at 10 mW/cm2. The CBF increased after 10 mW/cm2 exposure. The power of EEG delta (0.5-4 Hz) waves was increased by thermal level of brain localized 4 GHz CW exposure at 42 mW/g specific absorption rate (SAR) simultaneously with the REG amplitude as an index of cerebral blood flow. Amplitude modulation at 16 Hz and 8.4 mW/g SAR was associated with increased power of EEG beta (14.5-30 Hz) waves but changes in the CBF were not observed. CW radiation at 8.4 mW/g increased the cerebral blood flow, but did not change EEG spectra.
A 65-year-old man presented with an esophageal polyp that proved to be malignant pleomorphic fibrous histiocytoma, extremely rare at that location. Diagnosis of the abrasion cytology specimen was confirmed by immunohistochemical and electron microscopic methods. Differential diagnostic problems of pleomorphic soft tissue tumors and epithelial tumors mimicking them are discussed.
A case of biphasic synovial sarcoma initially diagnosed by fine needle aspiration cytology is described. The diagnosis was confirmed by electron microscopic studies on a repeat aspirate and histologic and immunohistochemical studies on the surgical specimen. The cellular DNA content was also measured. The differential diagnosis and histogenesis of this neoplasm are discussed.
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