نتایج جستجو برای: malignant tumors

تعداد نتایج: 344586  

Introduction: There are few studies investigating the role of neoangiogenesis in biological behavior of salivary gland tumors. CD105 expression has demonstrated greater accuracy for detecting new vessel formation compared with other pan-endothelial molecules. This study aimed to assess and compare intratumoral Micro-Vessel Density (MVD) through using immunohistochemichal expression of CD105 bio...

Mohammad Ansari Saeedeh Khalesi Sayed Mohammad Razavi

BACKGROUND AND AIM: Intra-osseous pathologic lesions of the jaw bones have different radiological and clinicopathological features from benign to malignant lesions. The aim of this study was to determine the prevalence of jaw lesions in Isfahan, Iran, during 1992-2017. METHODS: In this descriptive-analytical study, all re...

Journal: :Ultrasound in Medicine and Biology 2021

Abstract The goal of the work described here was to evaluate utility acoustic radiation force impulse (ARFI) imaging, a novel elastography technique, for differentiating benign from malignant salivary gland tumors. With use conventional strain (SE) and ARFI imaging with four-pattern scoring system, 185 tumors were examined (163 benign/22 malignant). When score ≥3 used define malignancy...

Journal: :iranian journal of medical sciences 0
negar azarpira ramin mardani mehrzad pourjafar bita geramizadeh saeid farokhi

neurofibromatosis type 2 is an inherited disease. the main manifestation of the disease is the development of symmetric, non-malignant brain tumors in the region of the cranial nerve viii usually as schwannoma. we report here a 20-year-old woman with primary intracranial malignant nerve sheath tumor located in the left cerebellopontine angle. histologically, the tumor showed malignant spindle c...

Journal: :iranian journal of cancer prevention 0
farzaneh jadali dept. of pediatric pathology, medical research and development center of mofid children's hospital, shahid beheshti university of medical sciences, tehran, iran hosein aghayan golkashani dept. of pediatric pathology, medical research and development center of mofid children's hospital, shahid beheshti university of medical sciences, tehran, iran golareh habibi school of public health, faculty of health sciences, simone fraser university, vancouver, british colombia mohsen rouzrokh dept. of pediatric surgery, medical research and development center of mofid children's hospital, shahid beheshti university of medical sciences, tehran, iran fatemeh abdollah gorji medical research and development center of mofid children's hospital, shahid beheshti university of medical sciences, tehran, iran fahimeh dini dept. of pediatric pathology, medical research and development center of mofid children's hospital, shahid beheshti university of medical sciences, tehran, iran

background: as children comprise a considerable proportion of our population, the importance of local epidemiologic research and geographic and racial differences can’t be disputed on childhood malignancies. methods: in this descriptive retrospective study, we extensively reviewed the medical records of patients younger than 15 years of age, diagnosed with solid malignant tumors, from 1996 to 2...

  Background and Objective: Approximately 45% of benign peripheral nerve sheath tumors (PNST) occur in head and neck regions. Malignant peripheral nerve sheath tumors (MPNST) are less common and only 8-15% of these tumors occur in head and neck region. In this study, we aimed at evaluating the demographic characteristics, pathologic findings, locations, main clinical presentations and family h...

Seyyed Mehdi Nassiri Vahid Fathipour, Zohreh Khaki,

Recently, matrix metalloproteinases (MMP), in particular the gelatinases MMP-2 and MMP-9, generally considered as tumor markers for clinical applications. A longitudinal 2-years follow-up survey was performed on dogs with cutaneous tumor. Serum samples were obtained from 22 dogs with different cutaneous tumors and 22 health dogs at the time of surgery and one month, three months and one year af...

Journal: :acta medica iranica 0
mohammad vaziri department of thoracic surgery, hazrat rasool hospital, school of medicine, iran university of medical sciences, tehran, iran. abdolreza pazooki department of surgery, hazrat rasool hospital, school of medicine, iran university of medical sciences, tehran, iran. leila zahedi-shoolami general practitioner and researcher, school of medicine, iran university of medical sciences, tehran, iran.

there has been a highly significant increase in the number of patients with malignant mediastinal tumors in the last four decades. since these lesions are infrequently encountered and there are very few reports in iran concerning this issue, we performed this study to review our institutional experience of medias-tinal masses and to compare differences in the clinical spectrum between our study...

Abdellatif Nouri , Aicha Bouden , Asma Jabloun , Awatef Charieg, Aziza Ezzi , Chaima Mrad, Fatma Trabelsi, Imen Abid , Mariam Marzouki , Mohamed Jallouli, Mohamed Zouari , Mourad Hamzaoui , Nejib Kaabar , Rabiaa Ben Abdallah , Riadh Mhiri, Roumayla Mootamri , Said Jlidi , Sana Mosbahi , Sondes Sahli ,

Background: Ovarian masses requiring surgical intervention are uncommon in the pediatric population. The aim of this study was to report results of a multicentric Tunisian study concerning the clinical practice and the management of pediatric ovarian masses and to identify the factors that are associated with ovarian preservation. Materials and Methods: Between January 2000 and December 2015...

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