introduction: an important consideration in endodontic treatment is the elimination of microorganisms, including fungi, from the complex three- dimensional root canal system. candida albicans (ca) has a major role in endodontic treatment failure as the most important fungus isolated from the root canal system. the present study was carried out to evaluate the presence of ca in the teeth requiri...

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TOPIC: Critical Care TYPE: Medical Student/Resident Case Reports INTRODUCTION: A Dieulafoy's lesion was first described by Dr. M. T. Gallard in 1884, but the name followed after a French surgeon, Paul Georges Dieulafoy, who presented three cases of "submucosal arterioles" stomach 1898. Although this is rare lesion, it an important etiology gastrointestinal (GI) hemorrhage that clinicians need t...

background & aim: according to presence of immune system factors in chronic periapical lesions, hypersensitivity reactions may have some role in pathogenesis of these lesions. up to now, among the factors participating in type i hypersensitivity reaction, only one of them has been studied. so the aim of this study was to evaluate the relationship between the presence of ige & number of mast cel...

objective(s): there are many reports about the role of rostral ventromedial medulla (rvm) in modulating stress-induced analgesia (sia). in the previous study we demonstrated that temporal inactivation of rvm by lidocaine potentiated stress-induced analgesia. in this study, we investigated the effect of permanent lesion of the rvm on sia by using formalin test as a model of acute inflammatory pa...

introduction: this study evaluated the diagnostic value of the dipyridamole induced electrocardiuogram (ecg) cahnges, comparing with myocardial perfusion imaging. materials and methods: 222 patinets were studied with dipyridamole infusion (based on ecg criteria) as well as dipyridamole-myocardial perfusion imaging (mpi). results: abnormal dipyridamole test and abnormal mpi were noted in 11% and...

introduction: hemangiomas are the most frequent benign tumors of the liver and detecting them from metastasis or other malignant hepatic tumors is of outmost importance. 99mtc- rbc scan is highly specific and is the method of choice for this differentiation. this scintigraphy is performed in planar and spect modes. these two procedures are in agreement most of the times, however since spect is ...