This study was designed to investigate the unique magnetic resonance imaging (MRI) appearance of histopathologically-proven glioblastoma multiforme (GBM) with pseudopalisade necrosis and to assess its value for grading gliomas and providing a differential diagnosis. The study included 169 patients with intracranial masses who underwent surgery and had a proven histopathological diagnosis: 50 wi...

Hemangioblastoma (HB) in the supratentorial region of the brain is rare and only a few cases are reported on intraventricular HB. HB of the lateral ventricles is even rarer. We present a case of a 30-year-old man with generalized tonic clonic seizures. The brain computed tomography showed a 5.5 cm heterogeneous mass extending into both lateral ventricles with partial enhancement. Based on the s...

we have studied the patients who had a neck mass on presentation in five medical centers of tehran univ. of medical sciences (infectious disease department, ent department, dentistry faculty, cancer institute) during a period of 14 months. sixty patients, 20 women and 40 men, were eligible for our study. all patients underwent clinical and paraclinical work up and finally had histologic diagnos...

Background: For preclinical evaluations of radiopharmaceuticals, most studies are carried out on mice. Values of electron specific absorbed fractions (SAF) have had vital role in the assessment of absorbed dose. In past studies, electron specific absorbed fractions were given for limited source target pairs using older reports of human organ compositions.Objective: Electron specific absorbed fr...

chondroma is a benign tumor which mostly occurs in extremities but also sometimes in brain. most intracranial chondromas arise from skull base, but chondroma of falx origin is a rare circumstance. indeed, the intracranial chondromas rise from falx is mostly in relation with syndromic disorders such as mafucci's syndrome or ollier's syndrome. here, we reported a rare case of falxian intracranial...

The author has presented an excellent paper describing considerations that went into the development and imple­ mentation of the subject facility. The use of some pho­ tographs in the paper was particularly helpful. The photo on p. 240 shows open structural members around the bottom of the key air pollution control elements. For very little additional capital cost, these areas can be en­ closed...

Results: Bilateral vestibular schwannomas, bilateral trigeminal schwannomas and intra ventricular meningioma were noted to grow exponentially over a period of 7 years from tiny lesions to large lobulated masses in the IAC and CP angles, Meckel caves and within the right lateral ventricle respectively with surrounding brain parenchymal mass effect. We review other intracranial masses in NF 2 tho...

Nurse staffing and scheduling is a major health human resource issue currently facing healthcare organizations. To increase the capacity of healthcare organizations to address a variety of issues related to nurse staffing and scheduling, a mult-isite collaborative project was undertaken. The primary focus of this project was