Predictive performance of CT for adverse outcomes among COVID-19 suspected patients: a two-center retrospective study

The aim of the study was to compare the performance of various computed tomography (CT) reporting tools, including zonal CT visual score (ZCVS), the number of involved lobes, and Radiological Society of North America (RSNA) categorization in predicting adverse outcomes among patients hospitalized due to the lower respiratory symptoms during the coronavirus disease 2019 (COVID-19) pandemic. A total of 405 patients admitted with severe respiratory symptoms who underwent a chest CT were enrolled. The primary adverse outcome was intensive care unit (ICU) admission of patients. Predictive performances of reporting tools were compared using the area under the receiver operating characteristic curves (AUC ROC). Among the 405 patients, 39 (9.63%) required ICU support during their hospital stay. At least two or more observers reported a typical and indeterminate COVID-19 pneumonia CT pattern according to RSNA categorization in 70% (285/405) of patients. Among these, 63% (179/285) had a positive polymerase chain reaction (PCR test for the SARS-CoV-2 virus. The median number of lobes involved according to CT was higher in patients who required ICU support (median interquartile range [IQR], 5[3; 5] vs. 3[0; 5]). The median ZCVS score was higher among the patients that subsequently required ICU support (median [IQR], 4[0; 12] vs. 13[5.75; 24]). The bootstrap comparisons of AUC ROC showed significant differences between reporting tools, and the ZCVS was found to be superior (AUC ROC, 71-75%). The ZCVS score at the first admission showed a linear and significant association with adverse outcomes among patients with the lower respiratory tract symptoms during the COVID-19 pandemic

Successful Treatment of Acanthamoeba Meningoencephalitis in an Immunocompetent Child

Acanthamoeba meningoencephalitis is a very rare entity with high mortality rate. Its diagnosis is usually delated, and the optimal approach for its treatment is uncertain. In presented case, early diagnosis was made with direct examination of cerebral spinal fluid, and immediate initiation of accurate treatment with amphotericin B and fluconazole survived patient

Clinical Outcomes after En Bloc Resection of Periosteal Chondroma: A Retrospective Clinical Study

Aim: Periosteal chondroma is a rare chondroma that is difficult to differentiate. Its localization is similar to other surface periosteal lesions. These lesions have a wide distribution of age. Curettage, marginal excision, or en bloc resection are applied in the surgical treatment. En bloc resection is preferred to reduce recurrence. In this study, we aimed to share the experience of two orthopedic oncology centers in the differential diagnosis and treatment of periosteal chondroma. Material and Methods: Data from two clinics were analyzed retrospectively. Data were collected on demographic data (age, gender), clinical findings (pain, swelling, pressure-related symptom, duration of follow-up), radiological findings (size, bony invasion), pathology results (biopsy, excision), and postoperative complications (recurrence). Results: Fourteen patients were included in the study. En bloc resection was performed in all cases. The mean age of the patients was 31.5±16.5 (range, 8-58) years. 10 (71.4%) patients were male. The mean duration of symptoms was 6.6±4.8 (range, 0-18) months, and the mean follow-up was 46.7±39.6 (range, 6-132) months. Nine (64.3%) patients had pain. Six (42.9%) patientshadswelling.Onepatient(7.1%)hadapalpablemass.Therewasnocomplaint in 1 (7.1%) patient. One (7.1%) patient underwent biopsy. During the follow-up, no recurrence or complication was observed after en bloc resection. Conclusion: Imaging and histopathological findings of benign and malignant periosteal chondroid tumors may overlap, and accurate differential diagnosis is crucial in the treatment of these lesions. En bloc resection prevents recurrence during follow-up