A 36-year-old man presented to the hospital with a 2-day history of fever, sore throat, and fatigue 5 days after visiting Wuhan, China. His temperature on admission was 37.8°C (100.04°F). Pulmonary auscultation was normal. Laboratory studies showed a normal white blood cell count (4.6 × 10 9 /L) with a differential count of 53.1% neutrophils. The blood procalcitonin level was normal. Chest CT showed multiple peripheral ground-glass opacities in both lungs with more involvement of the left upper lobe, lingular segment (Figure a-c). At admission, the real-time fluorescence polymerase chain reaction (RT-PCR) assay of the sputum was negative for the 2019 novel coronavirus (2019-nCoV) nucleic acid.Repeat CT chest performed 3 days after admission showed transformation of ground-glass opacities to more consolidation (Figure d-f ). A repeat RT-PCR 2019-nCoV Images in a 36-year-old man with a 2-day history of fever, sore throat, and fatigue 5 days after visiting Wuhan, China, and a negative sputum real-time fluorescence polymerase chain reaction assay for the 2019 novel coronavirus. (a, b) Chest CT scans obtained at presentation show ground-glass opacities (red box) in the right upper lobe and the lingular segment and left lower lobe (b). (c) Volume rendering of chest CT scan obtained at admission. (d, e) CT scans obtained 3 days after admission show progression of ground-glass opacities to an atoll sign in the right upper lobe (red boxes in d) and left lower lobe consolidation (red boxes in e). (f) Volume rendering of chest CT scan obtained 3 days after admission shows the new areas of consolidation. See also Movies 1 and 2 (online)This copy is for personal use only. To order printed copies, contact reprints@rsna.org

Zinner syndrome (ZS) is a rare anomaly of the Wolffian duct. We searched for case reports and case series to identify the most effective methods for examination and treatment. The PubMed/Medline, Embase, and Scopus databases were searched. Our searches yielded 160 case reports/case series and included 214 patients. The mean age at diagnosis was 29.35 years. The R:L distribution was 1:1. The most common symptoms were: frequency (24.3%), dysuria (23.1%) and perineal pain (20.2%) in ZS patients with clinical symptoms. The diagnostic investigations used most frequently were magnetic resonance imaging (MRI) (67.8%) and ultrasonography (65.0%). Maximum flow rate on uroflowmetry, semen ejaculate volume, sperm count, and sperm motility were significantly lower in patients with ZS. Among 193 patients with treatment details, 65.8% underwent surgery; 9.8% underwent aspiration; 24.3% were followed with observation.Two patients died after surgery; all other patients remained asymptomatic after surgery. Fifty-two patients had complications and comorbidities. In patients with ZS, the most common symptoms are seminal vesicle cyst enlargement and compression of the bladder, ureter, and reproductive system. The diagnosis mostly depends on radiological examination. Surgery may be effective, but complications may occur.

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Background. Serum chitinase-3-like protein 1 (CHI3L1) is a promising marker for diagnosing liver fibrosis. This meta-analysis was carried out to assess the diagnostic performance of serum CHI3L1 for the estimation of liver fibrosis. Methods. Systematic searches were performed on PubMed, Embase, Web of Science, Scopus, the Cochrane Library, Google Scholar, Sinomed, the China National Knowledge Infrastructure (CNKI), the Chinese Medical Journal Database, and the Wanfang databases for available studies. The primary studies were screened strictly according to inclusion and exclusion criteria, and sensitivity, specificity, and other measures of accuracy of serum CHI3L1 for evaluating liver fibrosis were pooled with 95% confidence intervals. I 2 was calculated to assess heterogeneity, and sources of heterogeneity were explored by subgroup analysis. Deeks’ test was used to assess for publication bias, and likelihood ratio was used to determine posttest probability. Results. Our research integrated 11 articles, accounting for 1897 patients older than 18 years old. The pooled sensitivity and specificity for significant fibrosis, advanced fibrosis, and cirrhosis were 0.79 and 0.82 with an area under the receiver operating characteristic curve (AUC) of 0.85, 0.81 and 0.83 with an AUC of 0.91, and 0.72 and 0.74 with an AUC of 0.85, respectively. Random-effects models were used to assess for significant heterogeneity, and subgroup analysis showed that age and aetiology of included patients were likely sources of heterogeneity. No potential publication bias was found for serum CHI3L1 in the diagnosis of significant fibrosis, advanced fibrosis, or cirrhosis, and posttest probability was moderate. Conclusion. Measurement of serum CHI3L1 is a feasible diagnostic tool for liver fibrosis.

We presented our experience on how to effectively reduce the risk of radiographers being infected during the global pandemic of coronavirus disease 2019 (COVID-19) [1]. The National Health Commission of China announced that achieved zero report of newly confirmed and suspected cases of COVID-19 for the first time on March 19 in China [2]. On April 8, Wuchang railway station (in Wuhan, China) reopened after being closed for more than two months, which is the sign of economic recovery of China [3]. At the same time, the number of