Sternal tumors are very rare and challenging. Secondary sternal tumors are more common than primary tumors. These tumors are usually refractory to chemotherapy and radiotherapy, and surgery is the best choice for their treatment. In this study, we reported the collected data of 15 patients with primary and secondary tumors of the sternum, histological type, as well as kind of resection and reco...

  Objective: Secondary caries is a common problem in dental treatments and its occurrence is attributed to several factors. The present study aimed at assessing the prevalence of secondary caries in posterior teeth of patients presenting to the Department of Operative Dentistry, Shahid Beheshti Dental School.   Methods: This descriptive study was conducted on 350 patients with 1,339 posterior t...

ultrasound is one of the preferred modalities for evaluation of the parathyroid glands. this study was undertaken to determine the accuracy of high resolution ultrasound for secondary hyperparathyroidism in patients with chronic renal failure. from march 2008 to march 2009, ninety-one hemodialysis patients were examined by high resolution ultrasound (14 mhz) of the parathyroid glands in compari...

three different solvents namely; hexane, ethyl acetate and ethanol were used in partitioning the extracts obtained from piper guineense seeds and solvent extracts were investigated for the presence or absence of secondary metabolites. extracts were further evaluated on adult maize weevils, sitophilus zeamais. experiment was carried out under laboratory conditions at 27 ± 2 °c ambient temperatur...