OBJECTIVETo probe into the incidence, mechanism and clinical characteristics of chronic subdural hematoma (CSDH) evolving from traumatic subdural effusion (TSE).

METHODSThe clinical materials of 32 patients with CSDH evolving from TSH were analyzed retrospectively and the correlative literature was reviewed.

RESULTS16.7% of the patients with TSH evolved into CSDH. The time of evolution was 22 - 100 days after head injury. All patients were cured with hematoma drainage.

CONCLUSIONSTSE is one of the origins of CSDH. The clinical characteristics of TSE evolving into CSDH include polarization of patient age, and chronic small effusion. The patients are usually injured deceleratedly and accompanied with mild cerebral damage.

Adolescent ; Adult ; Child ; Child, Preschool ; Chronic Disease ; Female ; Hematoma, Subdural ; etiology ; Humans ; Infant ; Male ; Middle Aged ; Retrospective Studies ; Subdural Effusion ; physiopathology ; Wounds and Injuries ; physiopathology

Glioma is the most common primary central nervous system tumor,mainly derived from glial cells,with strong invasiveness,easy recurrence,and poor prognosis.Glioblastoma is a high-grade glioma with the highest degree of malignancy.The clinical treatment method is mainly surgical resection,supplemented by compre-hensive treatment such as radiotherapy,chemotherapy,and electric field therapy,but the treatment effect is not satisfactory.In recent years,with the rapid development of the field of tumor immunotherapy,CD73 is a novel immune checkpoint related to adenosine metabolism,which can promote tumor progression by inhibiting anti-tumor immune responses and promoting angiogenesis.This article systematically reviews the mechanism of action of CD73 and discusses its biological role and application in glioma,aiming to provide potential treatment options for glioma patients.

Objective To investigate the clinical features, treatments and prognoses of pediatric intracranial aneurysms. Methods The clinical and follow-up data of 16 consecutive patients with pediatric intracranial aneurysms (≤16 years), admitted to our hospital from January 2003 to December 2014, were analyzed retrospectively. Results Pediatric intracranial aneurysms in this study accounted for 0.78%of all intracranial aneurysms. Of the 16 children, 14 were male, 2 were female. There were 12 anterior circulation aneurysms and 5 posterior circulation aneurysms; there were 4 large aneurysms (diameter 11-25 mm) and 2 giant aneurysms (diameter≥25 mm);there were 14 complex aneurysms. At a mean follow-up duration of 16.8 months, no death was noted. Of the 12 patients received microsurgical therapy, 10 patients had favorable outcomes (modified Rankin scale [mRS] 0-1) and 2 patients had some sequelae: different degrees of disability (mRS 2-4). Of the 4 patients received endovascular therapy, 3 patients had favorable outcomes (mRS 0-1) and one patient had hemiparesis (mRS 2). Conclusions Pediatric intracranial aneurysms are different from adult intracranial aneurysms. The treatment effects and prognosis are relatively well when we select individualized treatment mode according to the clinical features of pediatric intracranial aneurysms.

Objective:To discuss the diagnostic methods, clinical features and treatment options of bronchogenic cysts.Methods:A total of 86 patients with bronchogenic cysts and 5 patients with esophageal cysts and esophageal cysts were selected from January 2011 to May 2020 in the Affiliated Tumor Hospital of Harbin Medical University. There were 37 males and 49 females with bronchogenic cysts, aged 23 to 70(49.27±10.70)years old. According to the location of the disease, the patients were divided into mediastinal type(65 cases, 75.6%); intrapulmonary type(21 cases, 24.4%); bronchogenic cyst originating from the esophagus(9 cases, 10.5%).Results:The preoperative diagnosis coincidence rate was 9.3% in 8 cases. The rate of thoracoscopic surgery(59.3% in 51 cases), compared with the indwelling time of thoracic drainage tube after thoracotomy[(3.80±1.25) days vs.(4.97±1.54)days, P<0.001] and hospital stay[(7.08±1.75) days vs.(9.60±2.58)days, P<0.001] significantly shortened. 65 cases(71.4%, 65/91) were successfully followed up, with a median follow-up time of 34(2-111) months, and no recurrence was found. Conclusion:Bronchial cysts have no characteristic clinical manifestations, and it is difficult to make a clear diagnosis before surgery. Chest MRI has a great advantage in the diagnosis of cysts. For most cases, thoracoscopic surgery can achieve better clinical treatment results and has minimally invasive advantages. It is difficult to distinguish between bronchogenic cysts that originated in the esophagus and esophageal cysts, and there is no significant difference in clinical characteristics.

Alzheimer's disease (AD) is associated with the impairment of white matter (WM) tracts. The current study aimed to verify the utility of WM as the neuroimaging marker of AD with multisite diffusion tensor imaging datasets [321 patients with AD, 265 patients with mild cognitive impairment (MCI), 279 normal controls (NC)], a unified pipeline, and independent site cross-validation. Automated fiber quantification was used to extract diffusion profiles along tracts. Random-effects meta-analyses showed a reproducible degeneration pattern in which fractional anisotropy significantly decreased in the AD and MCI groups compared with NC. Machine learning models using tract-based features showed good generalizability among independent site cross-validation. The diffusion metrics of the altered regions and the AD probability predicted by the models were highly correlated with cognitive ability in the AD and MCI groups. We highlighted the reproducibility and generalizability of the degeneration pattern of WM tracts in AD.
Humans ; White Matter/diagnostic imaging* ; Diffusion Tensor Imaging/methods* ; Alzheimer Disease/complications* ; Reproducibility of Results ; Cognition ; Cognitive Dysfunction/complications* ; Brain/diagnostic imaging*