نتایج جستجو برای: malignant
تعداد نتایج: 211474 فیلتر نتایج به سال:
این مطالعه مبنی بر گزارش بروز همزمان s. c. c و b. c. c بدنبال تروما در یک خانم 76 ساله می باشد. عوامل زمینه ساز بدخیمی های پوستی s. c. c و b. c. c شامل اشعهء اولتراویوله نور آفتاب بعنون مهمترین عامل و تماس با اشعهء x و ابتلا به بعضی بیماریها چون xeroderna pigmentosum وسولار کراتوزیس و هیپرکراتوز و کراتو آکانتوما و immumosuppression و ... نهایتا خود تروما مورد بررسی گذرا واقع شده اند. با توجه به...
Background and purpose : Malignant and infectious diseases are the most frequent causes of pleural effusion. Malignant diseases produce pleural effusion through different mechanisms: lymphatic and capillary obstruction, pneumonia or atelectasia. Therefore absence of tumor cells in aspirated effusion, highly declines the sensivity of the cytologic study. For this reason, the use of tumor marke...
Background & Objective: Chronic non healing ulcers or scar undergoing malignant transformation is a rare phenomenon with an estimated incidence of 2%. Though, numerous predisposing factors have been identified, still it is rarely diagnosed and commonly mistaken for a benign condition. The objective of this study was to verify the efficacy of the Fine Needle Aspiration Cytology/ Scrape cytolo...
Abstract Background: Few studies have evaluated association of Helicobacter pylori with benign and malignant laryngeal lesions. The aim of this study was to evaluate the coexistence of Helicobacter pylori with laryngeal lesions in patients with laryngeal growths, admitted in Taleghani hospital. Methods: In this cross-sectional study, all patients referred to ENT ward of Taleghani hospital ...
malignant melanoma has the heart metastasis rate of 50 - 71%, which seems to be the highest among other malignancies. when a patient presents with cardiac metastases of melanoma, the disease has already spread through the body and therefore hardly curable. this brief review tried to introduce this important condition and discuss its frequency, presentation, diagnosis, histologic findings and tr...
backgrounds: evidence is accumulating to support disruption of tissue architecture as a powerful event in tumor formation. for the past four decades, intensive cancer research with the premise of “cancer as a cell based-disease” focused on finding oncogenes or tumor suppressor genes. however, the role of the tissue architecture was neglected. three dimensional (3d) cell cultures which can recap...
background imaging plays a critical role not only in the detection, but also in the characterization of lung masses as benign or malignant. objectives to determine the diagnostic accuracy of dynamic magnetic resonance imaging (mri) in the differential diagnosis of benign and malignant lung masses. patients and methods ninety-four masses were included in this prospective study. five dynamic seri...
Salivary gland neoplasms account for 0.5-2% of all tumors worldwide, and can display a remarkable range of morphological diversity between different tumor types. The aim of this retrospective study was to present the clinico-pathologic characteristics of salivary gland neoplasms in a tertiary referral hospital in northwest region of Nigeria. Clinical and histopathological records of patients wi...
Background and Aim: Malignant melanoma is one of the most lethal skin tumors. Its prevalence and demographic specifications are different in European and western countries from those in the Middle East. This study was aimed to evaluate the demographic and clinical characteristics of malignant melanoma in Iran. Methods: In this cross-sectional study, the patients with the diagnosis of malignant...
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