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Deep sulcus sign
  1. Yao-Hui Tseng,
  2. Kao-Lang Liu,
  3. I-Lun Shih
  1. Department of Medical Imaging, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
  1. Correspondence to Dr I-L Shih, Department of Medical Imaging, National Taiwan University Hospital, No 7, Chung-Shan South Road, Taipei, Taiwan; rinkoss{at}

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A 22-year-old man came to our emergency department with sudden onset of left-sided chest pain. The pain was aggravated while taking deep breaths. Two similar episodes had occurred in the …

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  • Competing interests None.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; not externally peer reviewed.