background spitz nevus is an infrequent acquired melanocytic nevus. there is still a challenge for dermatopathologists in distinguishing spitz nevus from malignant melanoma particularly in adults since there is no immunohistochemistry or molecular markers which differentiate spitz nevus from melanoma. objectives the aim of this study is to make clear what clinico-histopathological features of s...

background: helicobacter pylori (h.pylori) infection has an important role in promoting gastrointestinal disease in human. it may be acquired early in life, particularly in developing countries. the aim of this study is to evaluate the association between h.pylori infection and clinical manifestations in iranian children.materials and methods: in this retrospective, cross-sectional study, h. py...

purpose: in the present work, clinical symptoms, serum immunoglobuline alteration and eosinophil count were investigated in the patients infected with giardia lamblia. materials and methods: in this regard, 50 persons infected with giardia and 50 healthy individuals were selected as the study and control groups respectively in tehran. sera of the groups were tested for igg, ige, iga levels and...

background: clinical reasoning process leads clinician to get purposeful steps from signs and symptoms toward diagnosis and treatment. this research intends to investigate the effect of teaching clinical reasoning on problem-solving skills of medical students.   methods: this research is a semi-experimental study. nineteen medical student of the pediatric ward as case group participated in a tw...

introduction: the conventional method of teaching endodontics has some drawbacks. due to the small size of the oral cavity, students cannot closely observe the clinical procedure. use of new teaching modalities such as the intraoral camera may obviate this problem. this study assessed the effect of video-assisted clinical instruction in dentistry (vacid) on dental student’s knowledge and perfor...

neuroinflammation is a disorder that causes neurological disease. neuroinflammation has a significant role in induce of multiple sclerosis (ms) and one of the situations that must be treated stops the ongoing process of inflammation against the cns by self-reactive lymphocytes. according to the successful results that were obtained from the pre-clinical phase of cell therapy, many studies were ...

david lawrence sackett, oc, md, frsc, frcp was an american-canadian physician, trialist, and teacher. he is best known as one of the pioneers of evidence-based medicine (ebm), which is arguably the most important movement in medicine over the past three decades. he founded the first clinical epidemiology department in mcmaster university in hamilton, canada in 1967. in addition, he was the head...

background and purpose: the objective of medical education is to train competent and qualified workforce in order to provide services in various health environments. one of the important objectives of operating room students is to train workforce who can involve in patient’s health and recovery. training these students should cause clinical ability and independent decision making during surgery...

abstract background: acute bronchiolitis is the most common form of lower respiratory tract infection in infancy. there are numerous contradictory reports regarding the efficacy of nebulized bronchodilators in the management of infants with acute bronchiolitis. this study was designed to compare the efficacy of nebulized epinephrine with salbutamol for treatment of the disease. methods: in a ra...

ionization radiation caused to incidence of complications in the exposed organs. in prostate radiotherapy, rectum and bladder have been radiated unwantedly and indicated some complications during and after treatment. the purpose of present study is to consider and to compare clinical complications of rectum and bladder in custom block and mlc for 3- d conformal radiotherapy, in order to determi...