Deep Sylvian fissure meningiomas:A case report

BACKGROUND Deep Sylvian meningiomas are rare and difficult to diagnose when small tumours lead to various symptoms.The difficulty associated with surgery is underestimated.Our case involved a mass(11 mm×12 mm×12 mm in size)in the right Sylvian fissure.It is the smallest deep Sylvian meningioma known and might be more easily misdiagnosed than previous examples.CASE SUMMARY A well-enhanced mass in the right Sylvian fissure of a 26-year-old male with a three-month history of seizure was identified via magnetic resonance imaging.The patient underwent operations twice for seizure control.During the first operation,the tumour was surrounded by the second segment of the middle cerebral artery and its numerous perforators.Partial resection had to be selected due to mild arterial damage.After the first operation,the patient presented with simple partial seizure.During reoperation,we isolated the anatomical structure near the tumour and the tumour over and removed it from its dorsal side by piecemeal resection.CONCLUSION This case reported the smallest deep Sylvian meningioma according to a literature review.Preoperative diagnosis is a crucial step due to deep Sylvian meningioma firmly adhering to the middle cerebral artery and its perforators.Adequate preparation is crucial to ensure the success of surgery.

Endometrial MicroRNA Signature during the Window of Implantation Changed in Patients with Repeated Implantation Failure

Background： At present, a diagnostic tool with high specificity for impaired endometrial receptivity, which may lead to implantation failure, remains to be developed. We aimed to assess the different endometrial microRNA （miRNA） signatures for impaired endometrial receptivity by microarray analysis. Methods： A total of 12 repeated implantation failure （RIF） patients and I0 infertile patients, who conceived and delivered after one embryo transfer attempt, were recruited as RIF and control groups, respectively. Endometrial specimens from the window of implantation （WOI） were collected from these two groups. MiRNA microarray was conducted on seven and five samples from the RIF and control groups, respectively. Comparative, functional, and network analyses were performed for the microarray results. Quantitative real-time polymerase chain reaction （PCR） was performed on other samples to validate the expression of specific miRNAs. Results： Compared with those in the control group, the expression levels of 105 miRNAs in the RIF group were found to be significantly up- or down-regulated （at least 2-fold） by microarray analysis. The most relevant miRNA functional sets of these dysregulated miRNAs were miR-30 family, human embryonic stern cell regulation, epithelial-mesenchymal transition, and miRNA tumor suppressors by tool for annotations ofmicroRNA analysis. Network regulatory analysis found 176 miRNA-mRNA interactions, and the top 3 core miRNAs were has-miR-4668-5p, has-miR-429, and has-miR-5088. Expression levels of the 18 selected miRNAs in new samples by real-time PCR were found to be regulated with the same trend, as the result ofmicroarray analysis. Conclusions： There is a significant different expression of certain miRNAs in the WOI endometrium for RIF patients. These miRNAs may contribute to impaired endometrial receptivity.