background: cholangiocarcinoma is an invasive biliary malignancy with poor prognosis. diagnostic accuracy of conventional methods is low which is mainly due to the specific anatomy of the disease. the aim of this study was to evaluate the diagnostic value of biochemical profile and tumor marker of the bile in patients with malignant cholestasis compared to that of choledocholithiasis. methods: ...

a case of bilateral intraosseous tumor of the calcaneus with different mri imaging is presented. on the left, radiological findings suggest intraosseous lipoma, but on the right-sided lesion, imaging studies were not convincing. the microscopic report showed foreign body granulomatous reaction, a rare clinical pathological discordant.

inflammatory myofibroblastic tumor (imt) is a rare neoplastic lesion with tendency toward local aggressive behavior and recurrence. the tumor most commonly occurs in the pulmonary system of children and young adult, although it may rarely develop in older patients and other organs. symptoms are non-specific and depend on the location of the tumor. the gastrointestinal tract is rarely the primar...

background:: hypercoagulability has been reported in primary brain tumors which can lead to thrombotic complications.hydroxyethyl starch (hetastarch) is a synthetic colloid solution with adverse effects on blood coagulation. the aim of this study was to evaluate the protective effect of hetastarch in reducing thromboembolic events in these patients. materials and methods: in a double-blinded cl...

a case of a 3-year-old patient with osteolytic lesion in the lumbar region is presented. the clinic-radiological suspicion was infection, primary or metastatic tumor of spine. subsequently, a ct guided biopsy proved an eosinophilic granuloma of bone. following medical treatment after two month, there was improvement in patient medical status.

choroid plexus papillomas are rare intracranial tumors, accounting for less than 1% of all intracranial tumors in adults. however, they are relatively more common in children and constitute 1.5 to 4% of childhood intracranial tumors. in children, choroid plexus papillomas are predominately located in the lateral ventricles, followed by the forth and third ventricles and, rarely, in the cerebell...

osteosarcoma is a primary malignant tumor of bone, which can involve jaws. this article reviews osteosarcoma of the jaws referred to the department of oral pathology, dental faculty of tehran university of medical sicences and pathology department of cancer institiute in imam khomeini hospital during 30 years from 1349 to 1378 and also reviews jaw osteosarcoma in english literature. the purpose...

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amyloidoma or amyloid tumor is a tumor-like localized deposit of amyloid encountered occasionally in association with multiple myeloma, various chronic inflammatory diseases and primary amyloidosis. amyloid tumors unassociated with plasmacytoma or other disease are extremely rare in soft tissues and few cases in various situations have been reported. histologic examination discloses amorphous e...

frequency of common etiologies of adult onset epilepsy is different in various studies. the aim of this study is to evaluate the frequency of common ‎etiologies of late adult onset epilepsies. ‎ all patients referred to razi and imam khomeini hospitals ‎in the year 2003 with at least two seizure attacks beginning after age of 50 were evaluated. in the majority of cases neuroimaging, electroence...