background: neuroblastoma is the most common tumor in infancy and wilms’ tumor is the most common malignant tumor of kidney in childhood. both the tumors are usually within the differential diagnosis of each other. this study compares the clinical manifestations, sex and age distribution of childhood wilms’ tumor and neuroblastoma at one of tehran children hospitals. materials and methods: the ...

abstract gastrointestinal mesenchymal tumors are a group of tumors originating from the mesenchymal stem cells of the gi tract. digestive tract schwannomas are rare mesenchymal tumors which occur most frequently in the stomach. we report a 56-yearold woman who was examined endoscopically for dyspepsia which she had suffered from since 3 years ago. around gastric antral mass was seen. surgical r...

BACKGROUND The prognostic significance of tumor size in gastric cancer is not well defined. The objective of this study was to identify the prognostic value of tumor size in patients with gastric cancer. METHODS We retrospectively reviewed a total of 1800 patients with gastric cancer admitted to our hospital between 1997 and 2007. These patients were divided into two groups according to tumor...

background: triple-negative breast cancers (tnbc) have a more aggressive course and are associated with poorer prognosis in comparison with other subtypes of breast cancer. one of the most common subtypes of tnbc is basal-like. the aim of this study was to investigate clinicopathological characteristics and clinical course of tnbc in iranian women and compare them with other studies. subjects a...

introduction: breast cancer is the most common of all malignant neoplasms in women worldwide. this study aims to demonstrate certain biological, clinical and pathological characteristics of patients treated at the university hospital oncology unit. methods: a descriptive study was conducted during a period of 2 years, from october 2003 through september of 2005 in kermanshah, iran. 555 patients...

purpose : to assess the results of brachytherapy in patients with recurrent or incomplete excised conjunctival squamous cell carcinoma (scc) and malignant melanoma. methods : three patients underwent brachytherapy of one eye and one patient underwent brachytherapy of both eyes with ruthenium-106 (ru-106) plaques, all of them had a history of incomplete resection or recurrence of the tumor after...

objective(s): expression of her2 in gastric carcinoma has direct prognostic and therapeutic implications in patient management. the aim of this study is to determine whether a relationship exists between standardized uptake value (suv) and expression of her2 in advanced gastric carcinoma. methods: we analyzed the 18f-fdg pet/ct results of 109 patients that underwent gastrectomy for advanced gas...

primary pancreatic leiomyosarcomas are rare malignant neoplasms with an aggressive course and a large size. a 56-year-old woman presented with an 8-year history of abdominal pain. multislice computed tomography revealed a large heterogeneous mass with necrotic, calcified and macroscopic fatty areas. the tumor was excised. histopathological evaluation revealed leiomyosarcoma of the pancreas. if ...