• Chengan Xu, Zhewen Zhou, Shouhao Wang, Wenya Ren, Xingdi Yang, Hanzhu Chen, Wei Zheng, Qiaoqiao Yin, and Hongying Pan.
• Center for General Practice Medicine, Department of Infectious Diseases, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), 158# Shangtang Road, Hangzhou 314408, China.
• Postgrad Med J. 2024 Jun 28; 100 (1185): 482487482-487.

BackgroundPsoas abscess (PA) is an uncommon disease that has been increasingly reported in the recent years. We reviewed patients with PA and analyzed their clinical characteristics to improve our understanding of this rare disorder.MethodsWe retrospectively reviewed the clinical presentations, microbiology, and outcomes of patients with PA between 2011 and 2022 at the Zhejiang Provincial People's Hospital in China.ResultsThere were 40 adult patients identified with the discharge diagnosis of PA. The mean age was 60 years, and 67.5% of the patients were male. Primary symptoms were typically nonspecific. In all, 20 abscesses were considered secondary, and the most common was infective spondylitis. The most common causative organism for primary PA was Staphylococcus aureus, followed by Escherichia coli, whereas multiple bacterial species were found in secondary abscesses. The overall in-hospital mortality rate was 5%. Patients with secondary PA had a longer hospital stay.ConclusionPA, as a serious infectious condition, usually presents with nonspecific symptoms and laboratory test results, making early diagnosis difficult. These profiles differed from those reported in the present study. The initial clinical status and subsequent imaging studies can lead to favorable outcomes.© The Author(s) 2024. Published by Oxford University Press on behalf of Fellowship of Postgraduate Medicine.

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