醫療影像教學- whirl sign (curved arrow) :當腸子發生扭結時(volvulus).我們會看到所謂的whirl sign .小腸及腸繫膜纏繞著上腸繫膜動脈而成旋炫渦狀. 是不是很像衛星雲圖上的颱風呢
![The ''whirl sign'' and typical appearance of a sigmoid volvulus. (a)... | Download Scientific Diagram The ''whirl sign'' and typical appearance of a sigmoid volvulus. (a)... | Download Scientific Diagram](https://www.researchgate.net/publication/47519696/figure/fig2/AS:601679644868620@1520463014315/The-whirl-sign-and-typical-appearance-of-a-sigmoid-volvulus-a-Axial-CT-slice.png)
The ''whirl sign'' and typical appearance of a sigmoid volvulus. (a)... | Download Scientific Diagram
Whirlpool sign (arrow) with torsion of the sigmoid vessels in abdominal CT. | Download Scientific Diagram
![The ultrasonographic “whirlpool sign” in testicular torsion: valuable tool or waste of valuable time? A systematic review and meta-analysis | SpringerLink The ultrasonographic “whirlpool sign” in testicular torsion: valuable tool or waste of valuable time? A systematic review and meta-analysis | SpringerLink](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs10140-018-1579-x/MediaObjects/10140_2018_1579_Fig1_HTML.gif)
The ultrasonographic “whirlpool sign” in testicular torsion: valuable tool or waste of valuable time? A systematic review and meta-analysis | SpringerLink
![Abdo-pelvic CT scan with IV and PO contrast showing the whirlpool sign... | Download Scientific Diagram Abdo-pelvic CT scan with IV and PO contrast showing the whirlpool sign... | Download Scientific Diagram](https://www.researchgate.net/publication/328966935/figure/fig1/AS:703905080016901@1544835457221/Abdo-pelvic-CT-scan-with-IV-and-PO-contrast-showing-the-whirlpool-sign-yellow-arrow.png)
Abdo-pelvic CT scan with IV and PO contrast showing the whirlpool sign... | Download Scientific Diagram
![Whirlpool sign on ultrasound imaging in a preterm infant with suspected malrotation volvulus | ADC Fetal & Neonatal Edition Whirlpool sign on ultrasound imaging in a preterm infant with suspected malrotation volvulus | ADC Fetal & Neonatal Edition](https://fn.bmj.com/content/fetalneonatal/106/4/441/F1.large.jpg)