background : this study evaluates estrogen and progesterone expressions in patients with ovarian tumors (both benign and malignant) and their correlation with various clinicopathological prognostic parameters. receptors for estrogen and progesterone are predictive and prognostic markers of endometrial and breast cancers. however, their clinical significance in epithelial ovarian cancer is not c...

background: phyllodes tumors are uncommon neoplasms of the breast. data about their outcome is limited. this study aims to evaluate patients diagnosed with phyllodes tumors in terms of local recurrence, distant metastasis and overall survival. methods: we retrospectively reviewed the medical records of 129 women with phyllodes tumors who referred to our center from 1999 to 2013. clinical and pa...

Dear Editor-in-Chief Myxoid tumors of oral cavity encompass a broad spectrum of lesions, primarily neoplastic.(1) The significant variations in the biological behaviour; ranging from completely harmless to malignant neoplasm they require an accurate histopathological diagnosis to ensure a proper treatment. (2) Because of the considerable overlapping between the clinical and histopathologi...

background and aims. mast cells are one of the characteristic factors in angiogenesis, growth, and metastatic spread of tumors. the distribution and significance of mast cells in many tumors have been demonstrated. however, few studies have evaluated mast cell infiltration in salivary gland tumors. in this study, mast cell counts were evaluated in benign and malignant salivary gland tumors. mat...

Classification: The following classification is based upon the inductive effect of one dental tissue upon another. In normal tooth development, it has been observed that ameloblastic epithelium exerts an influence upon the undifferentiated mesenchymal cell of the dental papilla "inducing" adjacent cells to further differentiate into odontoblasts. The odontoblasts then begin to form dentine. The...

Glioblastoma is a destructive form of brain tumor that kills most patients within two years of diagnosis.Treatments for glioblastoma include the usual options of surgery, radiation therapy and chemotherapy, but there is no effective treatment. The tumors are capable of spreading tendrils out into the brain and it can grow back in a matter of months after being removed. The cancer stem cell...

Odontogenic tumors contain a heterogeneous collection of lesions that are categorized from hamartomas to benign and malignant neoplasms of inconstant aggressiveness. Odontogenic tumors are usually extraordinary with assessed frequency of short of 0.5 cases/100,000 population for every year. The lesions such as odontogenic tumors are inferred from the components of the tooth-structuring contrapt...