BACKGROUND EGFR mutation detection has been widely applied in the prediction of TKIs therapy in Non-Small Cell Lung Cancer (NSCLC). Metastatic tumors rather than primary tumors were usually assayed for those patients in advanced stages. Although the difference of EGFR mutation status in primary and metastatic tumors has been reported, the quantitative difference (ratio of mutated EGFR among tot...

Thirty-one patients with spinal tumors underwent reconstructive surgery with our spinal instrumentation system (MPDS and MADS), with or without our new vertebral tumor prosthesis. The characteristics of the spinal tumors were analysed statistically and the treatment outcome was evaluated. There were 4 benign tumors, 6 malignant tumors, and 21 metastatic tumors. The malignant tumors involved the...

Background: Tumors of the central nervous system (CNS) are a heterogeneous group of neoplasms with different prevalence in different sex and age groups and various parts of CNS. Objectives: Determining the relative frequency of different types of CNS tumors in different ages, sex and CNS anatomical locations. Materials and Methods: This retrospective study was performed using pathological repor...

The aim of this study was to examine in what ways MatLyLu (MLL) rat prostate tumors with high metastatic capacity influence regional lymph nodes prior to metastatic establishment compared to AT1 rat prostate tumors with low metastatic potential. MLL or AT1 tumor cells were injected into the ventral prostate of immunocompetent rats. Tumor and lymph node morphology, and lymph node mRNA expression...

In this study, l-131-MIBG imaging was performed in 44 patients with clinical suspicion of tumors originating from neuro-endocrine system. The patients were referred to our department following plasma and urinary measurement of epinephrine, norepinehrine and vanilmandelic acidfVMA). Radionuclide imaging was performel as a comparative or confirmatory measure in all patients who had previous...

Odontogenic tumors, derived from epithelial, ectomesenchymal, and/or mesenchymal elements of the tooth-forming apparatus, constitute a heterogeneous group lesions, including hamartomas, benign and malignant neoplasms with metastatic capabilities. This review provides comprehensive overview molecular events in pathogenesis odontogenic tumors. The reasonable better understanding components may pr...

Tumors develop an abnormal microenvironment during growth, and similar to the metastatic phenotype, the metabolic phenotype of cancer cells is tightly linked to characteristics of the tumor microenvironment (TME). In this study, we explored relationships between metabolic profile, metastatic propensity, and hypoxia in experimental tumors in an attempt to identify metastasis-associated metabolic...

The past two decades have seen a large increase in treatment options, resulting in longer life expectancy and better quality of life to a point where metastatic lesions are no longer the ma‐ jor cause of mortality in this patient group. This has made decision making on treatment mo‐ dality more complex. Evidence for local aggressive control through surgery and stereotactic radiosurgery (SRS) [3...

Ovarian metastatic tumors represents up to 10% of all ovarian malignancies. The most encountered tumors which may give birth to ovarian cancer are those originating from the gastric tube; however, other malignancies such as breast, cervix, lung or even skin may be associated with ovarian metastatic tumors. This is a literature review of the most frequently seen ovarian metastatic tumors.

this presentation analyses the histological types, relative incidences, age, sex and anatomical distributions of one hundred and seventy-nine biopsy proven tumors of the spinal canal from a general hospital in iran. particular attention is paid to differences in the relative incidence of these tumors compared with that in various published reports and the statistics from several eastern countri...