Synovium is specialized mesenchymal tissue that is essential for the appropriate function of the locomotor apparatus. It is the site for a series of pathologic processes that are characteristic, and in some cases specific, to this distinctive tissue. In this article, the normal microscopic anatomy of synovium is briefly reviewed. Synovial proliferative disorders, including pigmented villonodula...

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the thyroid structural changes in pregnant ewes and their fetuses were investigated. out of 100 pairs of thyroid glands collected from ewes and their fetuses at the local municipal abattoir in ahvaz city of khuzestan province, multiple lesions were seen in 59% and 21% of the thyroid glands of ewes and fetuses, respectively. histologically, ninety nine lesions in the ewes and twenty two lesions ...

oral cancer is considered a great threat to public health. tongue cancer accounts for nearly 30% of all oral cancers and usually seen in 50 to 60 year old men. oropharyngeal cancers account for 3% of all cancers in iran; as reported in 2003. the present study was designed to assess the epidemiologic and clinicopathologic characteristics of tongue cancer patients in two tehran's referral univers...

paragangliomas are neoplasms of neural crest origin. in the head and neck, they uncommonly involve the larynx. the distinction between paragangliomas and other neuroendocrine tumors can be difficult. precise diagnosis is important in order to optimize patient treatment. diagnosis relies mostly on histopathologic examination followed by immunohistochemistry. here we report a 77-year-old woman wi...

muscle biopsy has been used for a long time for diagnosis of muscular, nerurogenic and systemic disorders with muscle involvement, because only very few of these disorders show sufficient specific clinical features for definite diagnosis. since the presence of difficulties in the screening of numerous genes, muscle biopsy could be a time and cost effective procedure for solving the diagnostic p...

objective: in recent years, antiviral drugs have been used widely in the glob to prevent and treat viral diseases. they injected into eggs to eliminate pathogens and prevent of egg transmission of disease, but the adverse effects of drugs have always been a major concern. there is little information available about the safety of antiviral drugs in the embryonated eggs of birds. the objective of...