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"Intussusception (Radiology)"의 두 판 사이의 차이

 
(같은 사용자의 중간 판 7개는 보이지 않습니다)
1번째 줄: 1번째 줄:
 
[[분류:Radiology]]  
 
[[분류:Radiology]]  
Intussusception (Radiology)
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[[Intussusception]]의 Key imaging features는 multiple layered target like lesion.
  
 
==Imaging features==
 
==Imaging features==
9번째 줄: 9번째 줄:
 
**Multiple layers and concentric rings
 
**Multiple layers and concentric rings
 
*Small amount of peritoneal fluid or Large amount of peritoneal fluid(suggests perforation, especially echogenic ascites)
 
*Small amount of peritoneal fluid or Large amount of peritoneal fluid(suggests perforation, especially echogenic ascites)
*Diameter
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*Diameter<ref>https://pubs.rsna.org/doi/full/10.1148/radiol.13122639</ref>
<ref>https://pubs.rsna.org/doi/full/10.1148/radiol.13122639</ref>
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**Mean diameter: 2.63 cm(range, 1.3–4.0 cm) for ileocolic intussusception(1.42 cm(range, 0.8–3.0 cm) for small-bowel intussusception)
 
*Etc
 
*Etc
 
**Spontaneous reduction of intussusception is a well-known phenomenon that has been documented sonographically
 
**Spontaneous reduction of intussusception is a well-known phenomenon that has been documented sonographically
 
**Transient small bowel intussusception is a common occurrence, especially in patients with hyperperistalsis
 
**Transient small bowel intussusception is a common occurrence, especially in patients with hyperperistalsis
 
***not associated with substantial edema in the intussuscepted loops->thinner peripheral rim
 
***not associated with substantial edema in the intussuscepted loops->thinner peripheral rim
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==Differential diagnosis==
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*[[Transient small bowel intussuseption]]: target like lesion으로 보여 감별이 필요함.
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**비교적 작은 직경과 길이, wall thickness에 비해 inner fat core의 크기가 작음
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*[[Psoas muscle]](pitfall)
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2019년 3월 2일 (토) 13:31 기준 최신판

Intussusception의 Key imaging features는 multiple layered target like lesion.

Imaging features

USG[1]

  • Oval hypoechoic mass
    • Pseudokidney or doughnut sign
    • Hypoechoic rim with central echogenicity
    • Multiple layers and concentric rings
  • Small amount of peritoneal fluid or Large amount of peritoneal fluid(suggests perforation, especially echogenic ascites)
  • Diameter[2]
    • Mean diameter: 2.63 cm(range, 1.3–4.0 cm) for ileocolic intussusception(1.42 cm(range, 0.8–3.0 cm) for small-bowel intussusception)
  • Etc
    • Spontaneous reduction of intussusception is a well-known phenomenon that has been documented sonographically
    • Transient small bowel intussusception is a common occurrence, especially in patients with hyperperistalsis
      • not associated with substantial edema in the intussuscepted loops->thinner peripheral rim

Differential diagnosis