background and objectives: we aimed at evaluating the efficacy of fine needle aspiration biopsy (fna) in comparison with histopathology and demonstrating whether cytological study could be a proper diagnostic tool in orbital mass lesions. materials and methods: in a cross sectional study during 36 months, patients referred to our ophthalmologic center affiliated to tehran university of medical ...

salivary  gland  tumors  accounts  for  less  than  1%  of  all  tumors.  minor  salivary  gland  tumors (msgts) are uncommon and make up about 10% of all salivary gland neoplasms. the clinical and histopathological distribution of these tumors vary geographically. a case of a 38 yr old man with a minor salivary gland mass at chin region isreported here. the tumor invaded into the anterior surf...

conclusions the current study adds evidence to the association of tnf-α gene polymorphism and ms in this southern south iranian population which is consistent with the genetic analysis of ms in europeans (games) project reports and these two alleles reported in this study may be one of the genetic risk factor for ms. furthermore, this data can be used to build the iranian gene bank for future s...

introduction retrorectal cysts are rare benign lesions which are frequently diagnosed in middle-aged females. according to their origin and histopathologic features, retrorectal cysts are classified as squamous-lined (dermoid or epidermoid) cysts, postanal gut (tailgut) cysts, and rectal duplications (enteric or enterogenous cysts, enterocystomas). described in this case report is an extremely ...

malignant peripheral nerve sheath tumor (mpnst) is a rare malignant tumor that develops either from a preexisting neurofibroma or de novo. the cell of origin is believed to be the schwann cell and possibly other nerve sheath cells. in this report, we describe a rare case of mpnst that arise from the socket of second left maxillary molar that has been already extracted in a young man. he was ref...

background tnf-α is one of the most potent cytokines in proinflammatory reactions. results one hundred and twenty children with acute pyelonephritis were evaluated. urinary tnf-α/cr was 0.0051 ± 0.00083 pg/g creatinine. the authors found out a significant difference in urinary tnf-α/cr between patients who have normal and abnormal levels of urine leukocytes, urine protein, urine culture, erythr...

background : cd117 is a thyrosin kinase receptor encoded by c-kit proto-oncogene. it is expressed during normal development in some tissues and also in a subset of neoplasia especially gastrointestinal stromal tumors   (gists). treatment with thyrosin kinase inhibitors (e.g., imatinib) is useful in cd117- positive gists. the goal of this study is to investigate the expression of cd117 in glial ...

colorectal cancer is one of the most prevalent cancers in the world. it's survival expectancy depends on the time of diagnosis, stage and grade of the tumor, and general condition of the patient. survival expectancy of this type of cancer reveals the quality of diagnostic and therapeutic services in the community. to improve and standardize the treatment modalities in this field, much rese...

conclusions this is the first case of sft of the retroperitoneum removed laparoscopically. the laparoscopic approach is useful for the advantages of minimally invasive surgery especially in case of peduncolate tumor as the case reported. case presentation a 29-year-old female, was admitted in the gynaecology and obstetrics unit, for suspected pelvic tumor. ct scan showed a mass with hypervascul...