نتایج جستجو برای: brain mass
تعداد نتایج: 936119 فیلتر نتایج به سال:
Abstract Brucellosis is one of the most important zoonosis. It causes significant economic and medical problems in countries throughout the world, including Iran. According to the available literature, brucellosis rarely causes intracranial space-occupying lesions. In this case study, we reported an intracranial mass in a 52-year-old male who were affected with brucellosis. The patient was ref...
background: most preclinical studies are carried out on mice. for internal dose assessment of a mouse, specific absorbed fraction (saf) values play an important role. in most studies, saf values are estimated using older standard human organ compositions and values for limited source target pairs. objective: saf values for monoenergetic photons of energies 15, 50, 100, 500, 1000 and 4000 ke...
ABSTRACT: Glioblastoma multiforme is the most malignant primary brain tumor .It usually occurs in the 5th and 6th decades of life and is rare in childern. In this paper a case of glioblastoma multiforme is reported in a ten year - old child who presented with two week's history of headache with no neurological defect.C.T scan revealed å right frontal mass with massive surrounding oedema. He w...
background: rahbdoid tumor of kidney (rtk) is a childhood rare neoplasm, previously thought as a sarcoma variant of wilms’ tumor, but now is recognized as a distinct pathologic entity. method : we report a pathologically proved case of rtk, associated with brain mass in a 4.5-month-old girl that has referred for gross hematuria. shortly after initiating chemotherapy, because of retractile vomit...
During global health crises, such as the recent H1N1 pandemic, the mass media provide the public with timely information regarding risk. To obtain new insights into how these messages are received, we measured neural data while participants, who differed in their preexisting H1N1 risk perceptions, viewed a TV report about H1N1. Intersubject correlation (ISC) of neural time courses was used to a...
abstract background: a tumefactive lesion of central nervous system (cns) is defined as a mass-like lesion with a size greater than 2 cm in brain (magnetic resonance imaging) mri. neuroimaging may help to distinguish the nature of a tumefactive lesion and therefore can prevent an unnecessary brain biopsy. method: in this paper, we have emphasized on determining the nature of a cns tumefactive l...
Cetaceans rival primates in brain size relative to body size and include species with the largest brains and biggest bodies to have ever evolved. Cetaceans are remarkably diverse, varying in both phenotypes by several orders of magnitude, with notable differences between the two extant suborders, Mysticeti and Odontoceti. We analyzed the evolutionary history of brain and body mass, and relative...
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