Preoperative differentiation of gastric schwannomas and gastrointestinal stromal tumors based on computed tomography: a retrospective multicenter observational study.

Introduction: Gastric schwannoma is a rare benign tumor accounting for only 1-2% of alimentary tract mesenchymal tumors. Owing to their low incidence rate, most cases are misdiagnosed as gastrointestinal stromal tumors (GISTs), especially tumors with a diameter of less than 5 cm. Therefore, this study aimed to develop and validate a diagnostic nomogram based on computed tomography (CT) imaging features for the preoperative prediction of gastric schwannomas and GISTs (diameters = 2-5 cm).

Deleted in lymphocytic leukemia 2 induces retinoic acid receptor beta promoter methylation and mitogen activated kinase-like protein activation to enhance viability and mobility of colorectal cancer cells.

Abnormal expression of long non-coding RNAs (lncRNAs) is frequently linked to the pathogenesis of colorectal cancer (CRC). This work explored the function of lncRNA deleted in lymphocytic leukemia 2 (DLEU2) in CRC and the epigenetic mechanism. Candidate oncogenes in CRC were predicted using a GSE146587 dataset.

Analysis of CT, MRI imaging features of renal cell carcinoma with different histopathological types.

Purpose: This study aimed to investigate the computed tomography (CT) and magnetic resonance imaging (MRI) features of different histological types of renal cell carcinoma (RCC) (clear cell RCC (ccRCC), papillary RCC (pRCC), chromophobe RCC (chRCC).

Methods: The clinical data of 67 patients (including 38 patients with ccRCC, 20 patients with pRCC and 9 patients with chRCC) with RCC confirmed pathologically in the Affiliated Hospital of Jining Medical University were retrospectively analyzed. All patients underwent CT, MRI plain scan and three-phase enhanced scan, and their CT and MRI imaging features were analyzed.

MOB1 Inhibits Malignant Progression of Colorectal Cancer by Targeting PAK2.

Objective: We aimed at studying the mechanism of MOB1 inhibiting the proliferation and metastasis of colorectal cancer (CRC), to provide a new guidance for the early diagnosis and treatment of CRC.

Methods: MOB1 expression level in 68 pairs of CRC tissues and adjacent ones was detected by quantitative real-time polymerase chain reaction (qRT-PCR) analysis, and the associations between the expression level of MOB1 and the clinicopathological indicators as well as the prognosis of CRC patients were analyzed. After constructing CRC cell lines that stably overexpressing or silencing MOB1, the changes of cell proliferation and metastasis ability were examined by Cell Counting Kit (CCK-8) and Transwell assay.

Intracranial Arterial Fenestration and Risk of Aneurysm: A Systematic Review and Meta-Analysis.

Background: Previous studies have been inconsistent regarding risk for intracranial aneurysm related to intracranial arterial fenestration. We conducted a meta-analysis to examine the association between intracranial arterial fenestration and risk of aneurysm.

Methods: We performed a systematic review of PubMed and Embase through August 2017 for potentially relevant articles.

Application of CT perfusion to assess hemodynamics in symptomatic Moyamoya syndrome: focus on affected side and parameter characteristic.

Objective: Vascular and hemodynamic changes were not consistent in symptomatic and non-symptomatic cerebral hemisphere in patients with symptomatic moyamoya syndrome (MMS). Thus, the purpose of this study is to evaluate the hemodynamic difference between symptomatic and non-symptomatic cerebral hemisphere in patients with symptomatic MMS.

Methods: Patients who were diagnosed with symptomatic MMS were retrospectively collected.

Dual-Source Computed Tomography Evaluation of Children with Congenital Pulmonary Valve Stenosis.

Background: Despite dual-source computed tomography (DSCT) technology has been performed well on adults or infants with heart disease, specific knowledge about children with congenital pulmonary valve stenosis (PS) remained to be established.

Objectives: This original research aimed to establish a professional approach of DSCT performing technology on children and to assess the image quality performed by DSCT to establish a diagnostic evaluation for children with PS.

Patients And Methods: Ninety-eight children with congenital PS referred to affiliated hospital of Jining medical college were recruited from October 2013 to March 2015.

Differential diagnosis of solitary pulmonary nodules with dual-source spiral computed tomography.

The aim of the present study was to analyze the value of applying dual-source 64-layer spiral computed tomography (CT) in the differential diagnosis of solitary pulmonary nodules (SPNs). Mediastinal windows from 45 cases were selected to study SPNs (maximum diameter, ≤3 cm), and the pathological nature of lesions was determined by clinical and pathological diagnosis. Conventional 64-layer spiral CT scanning, local enhancement and 3D recombination technologies were used to determine the occurrence rate, lesion diameter, degree of enhancement, lobular sign, spicule sign, pleural indentation sign, vessel convergence sign and bronchus sign.

CT perfusion assessment of Moyamoya syndrome before and after direct revascularization (superficial temporal artery to middle cerebral artery bypass).

Purpose: To evaluate the utility of CT perfusion (CTP) for the assessment of superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis in patients with Moyamoya syndrome (MMS).

Subjects And Methods: Twenty-four consecutive MMS patients, who underwent unilateral STA-MCA bypass surgery, received CTP before and after surgery. The relative perfusion parameter values of surgical hemispheres before treatment were compared with post-treatment values.