Meningioma is the most common tumor of the central nervous system (CNS). Except for the CNS, it can be detected at a rate of 1-2% in the head and neck region. Primary pulmonary meningiomas (PPM) are extremely rare. They are detected incidentally as a solitary pulmonary nodule during radiological examinations. On computerized tomography (CT), the lesions are generally seen as a uniform and homogeneous mass. Although they are usually benign and the prognosis is excellent, they may be subject to misdiagnosis and overtreatment. (1-3). Here we have aimed to present a case of primary pulmonary meningioma that appeared as a solitary pulmonary nodule and to discuss its clinical and pathological features.

The analysis of pleural complications of Covid-19 pneumonia.

The increasing number of studies published on coronavirus disease 2019 (COVID-19) pneumonia has improved our knowledge of the disease itself and its complications. Despite a considerable number of publications on COVID-19 pneumonia-associated pneumothorax, no article on spontaneous hemopneumothorax has been found in the English-language literature. According to published case reports, pneumothorax generally occurs in hospitalized patients during treatment, whereas cases that arise in the late period after discharge are exceptional. Herein, we present a case of spontaneous hemopneumothorax occurring as a late complication of COVID-19 pneumonia on day 17 after discharge.

Background The use of laryngeal mask airway (LMA) ventilation in surgeries to be performed in upper tracheal stenosis has been reported in the case series. However, there is no generally accepted standardized approach for the use of LMA. In this study, LMA usage areas and advantages of trachea surgery were examined. Methods The records of 21 patients who underwent tracheal surgery using LMA ventilation between March 2016 and May 2020 were evaluated retrospectively. The patient data were analyzed according to age, gender, mean follow-up time, surgical indication, mean tracheal resection length, anastomosis duration, mean oxygen saturation, mean end-tidal CO2 levels, and postoperative complications. Results Four patients were female and 17 were male, their median age was 43 (11–72 range) and the mean follow-up time was 17.6 months. The most common surgical indication was postintubation tracheal stenosis. The mean tracheal resection length was 26.6 mm and the mean anastomosis duration was 11.3 minutes. The mean pulse oximetry and mean end-tidal CO2 during laryngeal mask ventilation was 97.6% ± 2.1 and 38.1 ± 2.8 mm Hg, respectively. Postoperative complications were higher in patients with comorbidities. Conclusion LMA-assisted tracheal surgery is a method that can be used safely as a standard technique in the surgery of benign and malignant diseases of both the upper and lower airway performed on pediatric patients, patients with tracheostomy, and suitable patients with tracheoesophageal fistula.

The aim: Gamma-glutamyl transferase (GGT) is a membrane-dependent enzyme and is primarily involved in glutathione metabolism. While a correlation between high GGT levels and oxidative stress, cardiovascular diseases, and some cancers has been shown in the literature, its prognostic effect in patients with non-small-cell lung cancer remains unclear. The aim of this study was to investigate the correlation between the preoperative GGT levels and the prognosis of non-small-cell lung cancers treated surgically. Materials and methods: Following the approval of the loc al ethics committee, the medical records of patients surgically treated in our department for stage-I non-small-cell lung cancer between January 2010 and December 2019 were retrospectively reviewed. The patients were classified into a high group (high-GGT) and low group (low-GGT) according to the preoperative GGT cut-off levels, which were specific to our series and calculated by receiver operating characteristic (ROC) analysis. Survival differences between the groups were also investigated by Kaplan-Meier, log-rank, and Cox regression tests. Results: A total of 219 patients fulfilled the inclusion criteria and were included in the study. The median survival was 75 (range: 58.4–91.1) months in the high-GGT group and 91 (range: 85–96.8) months in the low-GGT group, and this difference was statistically significant (Hazard Ratio: 2.0, 95% CI 1.0-3.9, p = 0.03). Conclusions: Preoperative GGT may be an inexpensive and easily applicable prognostic indicator in early-stage non-small-cell lung cancers.