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101.
Central giant cell granuloma (CGCG) is a benign lesion of unknown etiology that especially affects the jaws, usually appears in patients younger than 30 years and is more common in females than in males. Lesions generally occur in the anterior portion of the jaws and mandibular lesions frequently cross the midline. The conventional treatment of CGCG is surgical removal. According to clinical and radiological features, the extent of tissue removal ranges from simple curettage to an en bloc resection. We present an 8-year-old male patient, lack of any systemic disease or syndrome, complaining from painless swelling of the left posterior part of the mandible. In intraoral examination, a firm, expansive swelling with overlying intact mucosa, extending from mandibular primary canine to the distal portion of the left permanent first molar, was detected. A panoramic radiograph exhibited an ill-defined radiolucent lesion of 1.5 x 2 cm, extending from left permanent first molar to angulus mandibula and a well-defined, unilocular radiolucent lesion of 1 x 2 cm, extending from angulus to ramus mandibula on the asymptomatic right side. After the assessment of MRI, surgical removal was planned with the otorhinolaryngology department and lesions were totally removed under general anesthesia in two consecutive operation. Histopathologic examination revealed typical giant cell granuloma containing numerous multinucleated giant cells embedded in a fibrous stroma. In presenting this case we aimed to share occurrence of bilateral central giant cell granulomas of the mandible in the absence of hyperparathyroidism and associated syndromes, which is very rare in the literature.  相似文献   
102.
Metallic hip implants: CT with multiplanar reconstruction   总被引:4,自引:0,他引:4  
Thirty consecutive patients with metallic implants in the hip were evaluated with both standard transaxial computed tomography (CT) and multiplanar reconstruction (MPR) to assess the contribution of MPR. The metallic devices included total hip replacements (n = 6), one or more surgical plates with screws (n = 9), acetabular pins or screws (n = 9), and Knowles pins (n = 6). The metallic implants were on the side of interest in 25 hips and in the contralateral hip in five cases. One patient had bilateral hardware. MPR reformats axially acquired data into other planes. The reconstruction program weights the true signal over the randomly distributed artifacts by integrating adjacent axial images. Examination using standard transaxial imaging was graded as excellent in five cases, adequate in 15 cases, and inadequate in ten cases. After MPR, 19 studies were classified as excellent, 11 were classified as adequate, and none were classified as inadequate. It is concluded that MPR significantly reduced artifacts caused by metal present in transaxial images.  相似文献   
103.

Background  

Interest is increasing in the application of standardised outcome measures in clinical practice. Measures designed for use in research may not be sufficiently precise to be used in monitoring individual patients. However, little is known about how clinicians and in particular, multidisciplinary teams, score patients using these measures. This paper explores the challenges faced by multidisciplinary teams in allocating scores on standardised outcome measures in clinical practice.  相似文献   
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A 2 year old girl presented with epilepsy 16 months after being diagnosed as having autosomal recessive chronic granulomatous disease. Computed tomography showed a cerebral mass which was surgically removed and proved histologically to be an aspergilloma. This case illustrates the application of molecular diagnostic techniques to the diagnosis of chronic granulomatous disease. The occurrence of, and unusual reaction to, cerebral aspergillus infection indicates the need to consider this possibility in the differential diagnosis of mass lesions in chronic granulomatous disease. Furthermore, it is clear that autosomal recessive chronic granulomatous disease cannot be considered to be a clinically mild form that is exempt from major neurological complications.  相似文献   
107.
During fetal life, human liver sinusoids, which differentiate between 4 and 12 weeks of gestation from capillaries of the septum transversum, must support an important hematopoietic function and acquire the structural and functional characteristics of adult sinusoids. To gain insight into their differentiation process, we studied the expression of (1) markers of continuous endothelia, absent from adult sinusoidal endothelial cells (PECAM-1, CD34, and 1F10); (2) functional markers of adult sinusoidal endothelial calls (CD4, 1CAM-1, CD32, and CD14); and (3) extracellular matrix components (laminin, tenascin, fibronectin, and thrombospondin) in 37 fetuses of different gestational ages. We identified two successive differentiation events. (1) An early structural differentiation, occurring from 5 to 12 weeks of gestation, was characterized by the loss of continuous endothelial cell markers and a reduction in the perisinusoidal amount of laminin and in the deposition of tenascin, fibronectin, and thrombospondin; at the end of this process, fetal liver sinusoids present structural characteristics comparable to those of the sinuses in adult hematopoietic bone marrow. (2) A later functional differentiation was characterized by the acquisition of the markers of adult sinusoidal endothelial cells, initiating at 10 weeks of gestation and completed by 20 weeks of gestation; this process likely contributes to adapt liver sinusoids to the specific functions of the adult hepatic tissue.  相似文献   
108.

Background

Camel-related injuries have been less well studied than other animal-related injuries. We aimed to study prospectively the incidence, mechanism, distribution of injury, and outcome of patients admitted to hospital with camel-related injuries in Al-Ain, United Arab Emirates.

Methods

All patients who were admitted to Al-Ain Hospital with a camel-related injury were prospectively studied during the period of October 2001 to January 2010. Patient’s demography, time of injury, mechanism of injury, and distribution and severity of injury were studied.

Results

A total of 212 patients, all male, with a median age of 28?years (5–89?years) were studied. The estimated incidence of hospitalized camel-related injured patients in Al-Ain City was 6.88 per 100,000 population per year. Camel kicks were most common (36.8?%) followed by a fall from a camel (26.4?%) and camel bites (25.0?%). Camel kicks and falling from a camel were more common during the hot month of August, and camel bites were more common during the rutting season (November to February). Patients with a kick-related injury had a significantly higher rate of maxillofacial fractures compared with other mechanisms. Spinal injuries occurred significantly more often in vehicle occupants who collided with camels compared with other mechanisms (3/7 compared with 7/205, p?=?0.0022, Fisher’s exact test). Twelve patients (5.7?%) were admitted to the intensive care unit. The mean hospital stay was 8.6?days (1–103?days). Two patients died (overall mortality 1?%).

Conclusions

Understanding the biomechanisms and patterns of injury and correlating them with the behavior of the camel is important for identification and prevention of camel-related injuries.  相似文献   
109.
110.
Clinical and epidemiological research suggests that behavioral addictions (BA) are associated with a wide range of psychiatric disorders. However, the relationship between BA and bipolar disorders (BD) has not been thoroughly explored. The aim of this systematic review was to critically summarize and evaluate the current available evidence regarding a possible association between BA and BD. A systematic review of major electronic databases according to PRISMA guidelines was conducted from inception to 31st December 2017. We sought quantitative studies data concerning prevalence of comorbidity, features and treatment related to BA-BD comorbidity. Data were narratively synthesized. Of the 1250 studies returned from the search, a total of 28 articles were included in this review. BA may be overrepresented in BD samples, and the other way around. Pathological gambling and kleptomania were the most prevalent conditions followed by compulsive buying, compulsive sexual behavior and internet addiction. BA was also associated with other mood disorders, anxiety disorders and substance use disorder. BD-BA comorbidity was related with more severe course of illness. Studies on treatment strategies for BD–BA comorbidity are rather limited; only one randomized controlled trial that fulfilled inclusion criteria was identified. Methodological heterogeneity in terms of design and results among studies was found. BD-BA commonly co-occurs although there is a need for rigorous studies. Routine screening and adequate assessment may be helpful in BD patients to identify individuals at risk for BA and to effectively manage the complex consequences associated with BA-BD comorbidity.  相似文献   
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