"Intussusception (Radiology)"의 두 판 사이의 차이
| (같은 사용자의 중간 판 7개는 보이지 않습니다) | |||
| 1번째 줄: | 1번째 줄: | ||
[[분류:Radiology]] | [[분류:Radiology]] | ||
| − | Intussusception | + | [[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 | + | *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> | + | **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 | ||
| + | |||
| + | ==Differential diagnosis== | ||
| + | *[[Transient small bowel intussuseption]]: target like lesion으로 보여 감별이 필요함. | ||
| + | **비교적 작은 직경과 길이, wall thickness에 비해 inner fat core의 크기가 작음 | ||
| + | *[[Psoas muscle]](pitfall) | ||
| + | ----------------------------------------------- | ||
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
- Transient small bowel intussuseption: target like lesion으로 보여 감별이 필요함.
- 비교적 작은 직경과 길이, wall thickness에 비해 inner fat core의 크기가 작음
- Psoas muscle(pitfall)
- ↑ Diagnostic ultrasound 5th edition
- ↑ https://pubs.rsna.org/doi/full/10.1148/radiol.13122639