background: there is a variation in trends of oral cancers all over the world. many studies have reported evidence of increasing incidence in oral cancers during recent years. the purpose of this study was to investigate time trends and changes in demographic distribution of oral cancers incidence in isfahan during 1991-2010. materials and methods: in this retrospective analytic study, we colle...

Key Points A number of studies suggest that current use of oral contraceptives (birth control pills) appears to slightly increase the risk of breast cancer, especially among younger women. However, the risk level goes back to normal 10 years or more after discontinuing oral contraceptive use. Women who use oral contraceptives have reduced risks of ovarian and endometrial cancer. This protective...

pleuropulmonary blastoma (ppb) is a rare, malignant intrathoracic tumor that occurs mostly in children before 5 years old. it consists about 15% of all primary pediatric pulmonary tumors and shows various mesenchymal components. its presentations are nonspecific and common symptoms include fever, cough, chest pain, respiratory distress, and pulmonary infection. ppb should be considered in the d...

using complement fixation technique, serial serum samples from 15 patients undergoing surgical removal of malignant tumors were assayed for the presence of tumors antibodies against the cellular fractions of both normal and carcinomatous tissue. antibody responses against tumor associated antigens were detected in four cases. in all cases antibody activity was directed only against the supernat...

background: the etiology of breast cancer and our understanding on the carcinogenicity of different risk factors is impotant for control programms. objective: we investigated the expression of estrogen and progesterone receptors (er, pr), and human epithelial receptor 2 (her2) overexpression and its associations, with environmental risk factors among breast cancer patients.  methods: we classif...

S16 Biomaterials and Biotechnologies (in collaboration with S.I.B.O.T.) In-Depth Oral Presentations Oral Communications S20 Hand and Wrist (in collaboration with G.I.S.C.M.-G.I.M.E.T.R.A.) In-Depth Oral Presentations S21 Hip (in collaboration with S.I.d.A.) Oral Communications S25 Paediatric Orthopaedics (in collaboration with S.I.T.O.P.) Oral Communications S27 Infections (in collaboration wit...

background and aims. head and neck tumors are the most common complaints of people referring to different medical sections, especially in children. the aim of this study was to evaluate the prevalence of these tumors in children less than 12 years of age to provide a better perspective for future studies. materials and methods. all the files in department of pathology at tabriz pediatric hospit...

background: understanding the differences in genetics of malignancies is crucial for therapeutic decisions. this systematic review was conducted to evaluate the current evidence on genetics of bone tumors in the context of pediatric cancer. material and methods: we performed a systematic review of the literature published on genetics of pediatrics bone tumors, using pubmed, google scholar, scie...