نتایج جستجو برای: bone tumors
تعداد نتایج: 472785 فیلتر نتایج به سال:
in this session, we will discuss 7 cases in pediatric musculoskeletal field. these cases will include different aspects of bone and msk disorders in pediatrics such as bone tumors (benign and malignant), bone involvement in metabolic and hematologic disorders, infectious diseases and soft tissue vascular lesions. during this session, we will ask some volunteered radiology residents to explain t...
Malignant bone tumors in children occur rarely. Estimated annual incidence is 7 cases per 1.000.000 children under the age of 16. Due to its rare occurrence and often unspecific signs and symptoms, a lot of physicians do not consider this diagnosis early enough. Therefore it is not surprising that the majority of patients are referred to the pediatric oncologist when the disease is already in a...
introduction: metastatic lesions of the oral cavity are extremely rare, accounting for approximately 1% of all malignant oral tumors. the most common primary sources of metastatic tumors in the oral region are, from the most to the least common, the breast, lung, kidney, bone, and colon. renal cell carcinoma accounts for nearly 3% of all adult malignancies. it usually metastasizes to the lungs,...
چکیده اسیدهای چرب غیراشباع با چندین پیوند دوگانه می توانند در روندهای تولید مثلی مختلف از طریق سازوکارهای متنوعی تاثیر بگذارند. در این مطالعه تاثیرات مکمل های اسیدهای چرب امگا 3 و امگا 6 بر ویژگی های تکامل فولیکولی و استروئیدزایی تخمدان و همچنین بیان فاکتور رشد bone morphogenetic protein 15 در اووسیت، که در فولیکول زایی تخمدانی نقش دارد، بررسی شد. 30 میش 4-2 ساله-ی غیرشیرده به 3 گروه 10 تایی ت...
Tumors of the prostate or breast are particularly likely to metastasize to the bone, and early diagnosis of metastatic bone tumors is important for designing an effective treatment strategy. Imaging modalities for the detection of bone metastasis are limited, and radiation-based techniques are commonly used. Here, we investigated the efficacy of selective near-infrared (NIR) fluorescence detect...
Abstract Skin brachytherapy is a successful practice for treating skin cancer patients. Although gamma source like an Iridium-192 (Ir-192) commonly used in the brachytherapy, use of beta Yttrium-90 (Y-90) has also been investigated this purpose. In current study, we simulated dose distribution proposed Y-90 applicator and Ir-192 Leipzig phantom, compared performance each methods three tumors hy...
Background: Osteoblastoma is one of the rarest primary benign bone tumors which accounts for 1% of all bone neoplasms and 3.5% of benign bone tumors, with the potential for local invasion and recurrence. Osteoblastoma is not homogeneous. Differences in histological details have led to the division of these lesions into subtypes. The histologic features in most cases are distinctive, there are v...
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