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| IMAGING FOR RESIDENTS – QUIZ |
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| Year : 2022 | Volume
: 30
| Issue : 2 | Page : 163 |
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Diverging artifact in a subcutaneous abscess
Wei-Ting Wu, Yu-Chun Hsu, Ke-Vin Chang
Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| Date of Submission | 16-Jan-2021 |
| Date of Decision | 29-Mar-2021 |
| Date of Acceptance | 14-Apr-2021 |
| Date of Web Publication | 16-Jun-2021 |
Correspondence Address:
Dr. Ke-Vin Chang
Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Bei-Hu Branch and National Taiwan University College of Medicine, No. 87 Neijiang Street, Wanhua District, Taipei City 108
Taiwan
 Source of Support: None, Conflict of Interest: None
DOI: 10.4103/JMU.JMU_12_21
How to cite this article:
Wu WT, Hsu YC, Chang KV. Diverging artifact in a subcutaneous abscess. J Med Ultrasound 2022;30:163 |
| Section 1 – Quiz | |  |
A 60-year-old male had one painful, erythematous mass of the inferior abdominal wall for 3 months. He received a hernia repair surgery 1 year ago. Wound infection developed after the surgery, and an abscess was formed nearby. He received debridement, but there was only partial improvement. Under the impression of a residual abscess, ultrasound was arranged, revealin a hypoechoic lesion [Figure 1]a with peripheral hyperemia [Figure 1]b. A subcutaneous abscess with active inflammation was diagnosed. Furthermore, a hyperechoic structure was found in its center with diverging acoustic shadows [Figure 1c]. What is your impression about these findings in [Figure 1]c? | Figure 1: (a) The image was obtained by placing the transducer in the sagittal plane over the mass (arrowheads). (b) The image was obtained in the power Doppler mode showing hyperemia surrounding the mass. (c) The diverging artifacts (white arrows) behind the hyperechoic structure (black arrowhead) were observed
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Declaration of patient consent
The authors certify that they have obtained all appropriate patient consent forms. In the form, the patient has given his consent for his images and other clinical information to be reported in the journal. The patient understands that his name and initials will not be published and due efforts will be made to conceal the identity, but anonymity cannot be guaranteed.
Financial support and sponsorship
Nil.
Conflicts of interest
Dr. Ke-Vin Chang, an editorial board member at Journal of Medical Ultrasound, had no role in the peer review process of or decision to publish this article. The other authors declared no conflicts of interest in writing this paper.
[Figure 1]
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