The aim of this work was to study the handedness differences in the height of the right and left ethmoid roofs. Hand preference was assessed using the Edinburgh Handedness Inventory. The height of the right and left ethmoid roofs was measured with computerised tomography (CT). The incidence of persons who had a lower ethmoid roof on the right side was significantly greater among right-handers than among left-handers; the incidence of persons who had a lower ethmoid roof on the left side was significantly greater among left-handers than among right-handers; and right and left ethmoid roofs were equal in all ambidextrous subjects. The relationship between the asymmetric ethmoid roofs and handedness may result from the right or left embryonic craniofacial region being smaller in the right- or left-handed subjects. This is particularly important in the light of the high degree of variability in the ethmoid roof, and even between the right and left sides in a given individual. Preoperative awareness of a patient's unique sinus anatomy may help prevent iatrogenic injury to the surrounding vital structures during ethmoid sinus surgery (ESS).

Spinal hydatid cyst is an uncommon but serious condition. Intradural presentation is extremely rare. The case reported herein describes an unusual recurrent hydatidosis with progression of recurrence and spreading into intradural extramedullary field.

The veins of the azygos system vary greatly in mode of origin, course, numbers of tributaries and anastomoses, and nature of termination. The azygos vein system can take different courses. Such variation is important in mediastinal surgery, and knowledge of congenital variations can be of clinical importance. It is imperative for reporting radiologists to identify such anomalies.

Background: This expanded study presents the characteristic features of patients with novel Coronavirus 2019 (COVID-19) in intensive care units (ICUs). On the other hand, it has revealed an issue of triage on admission to ICUs for patients with COVID-19. Methods: The critically ill patients’ characteristics, laboratory findings, treatment and outcomes data were recorded. All chest computed tomography (c-CT) images were reviewed by two experienced radiologists in chest imaging. Collected data were compared between the confirmed and suspected COVID-19 cases. Moreover, some detected parameters were evaluated via c-CT findings among suspected COVID-19 cases. Results: The study population included 105 patients hospitalized in ICUs. Twenty-seven patients (25.7%) were confirmed COVID-19 through real-time reverse-transcription polymerase-chain-reaction (RT-PCR) assay, and 78 patients (74.3%) were suspected COVID-19. There was a significant difference between the confirmed COVID-19 and suspected COVID-19 patients in terms of PaO2/FiO2 ratio, APACHE II scoring system, the number of comorbidities. Interestingly, in suspected cases, mean PaO2/FiO2 ratio, APACHE II score, and the number of comorbidities were significantly higher in patients with typical c-CT findings for COVID-19 (P = 0.038, P = 0.034 and P = 0.020, respectively). Considering all three parameters, 33.3% of cases with typical CT findings could be reconsidered as highly probable COVID-19 infections. Moreover, 16.7% of the cases with atypical CT findings could be excluded and the unnecessary burden on ICUs could be reduced. Conclusion: In many contagious diseases such as COVID-19, for a new triage system, specific characteristics, selected general physiological findings, and typical laboratory parameters may be standardized in addition to RT-PCR testing and c-CT examination.

edilen toplam 22 retroperitoneal tümörlü hastanın kayıtları retrospektif olarak değerlendirildi. GEREÇ VE YÖNTEM: Retroperitoneal tümör nedeniyle 2011-2013 arasında cerrahi girişim yapılan olgular geriye dönük olarak incelendi. Primer retroperitoneal tümörü kontrol altına alınan, başka uzak organ metastazı olmayan cerrahi tedavi uygulanan olgular çalışmaya dahil edildi. Yaş, cinsiyet, primer tanı anında tümör evresi, cerrahi tedavi yöntemi, patolojik tanı ve takip açısından olguların dosyaları retrospektif olarak değerlendirildi. BULGULAR: Olgularımızın 9'u (%40) erkek, 13'ü (%60) kadındı. Ortalama yaş erkeklerde 71 ay (3-132), kadınlarda 37 ay (6-204) idi. Histopatolojik olarak olguların 15 (%68)'i nöroblastom, 4'ü (%18.5) Wilms tümörü, 1'i (%4.5) embriyonal rabdomyosarkom, 1'i (%4.5) berrak hücreli sarkom, 1'i (%4.5) malign sinir kılıfı tümörü olarak değerlendirildi. Tanı anında olguların 8'i (%36) evre I, 7'si (%32) Evre III, 7'si (%32) evre IV safhasındaydı. SONUÇ: Olgularımızın %68'i nöroblastom olup, tanı anında hastaların %64'ü evre III ve evre IV idi. Anatomik lokalizasyonları nedeniyle ileri evrelere kadar sessiz tümörler olan retroperitoneal tümörlerin çoğu nöroblastomdur ve genellikle ileri evrelerde tanı alırlar.