hernia 종류별로 internal mechanical paralytic 등 CT 특징들

Q (사용자 질문)

hernia 종류별로 internal, mechanical, paralytic 등 CT 특징들 비교해서 사진 보여줘

A (b 응답)

최바름님, 질문의 internal / mechanical / paralytic은 엄밀히는 “hernia 종류”라기보다 bowel obstruction/ileus CT pattern으로 보는 게 맞아서, 아래처럼 비교하면 됩니다.

MEDIA:/tmp/ileus_ct_comparison_radiopaedia.jpg

CT에서 제일 중요한 한 줄 - Internal hernia / closed-loop: “국소적으로 뭉친 C/U-shaped loop + mesenteric swirl + 2 transition points” → strangulation/ischemia 위험 높음. - Mechanical SBO: “proximal small bowel dilatation + distal collapse + single transition point” → 원인 adhesion/hernia/tumor/stricture 찾기. - Paralytic/adynamic ileus: “small bowel + colon이 diffuse하게 dilated, rectal gas 가능, 뚜렷한 transition point 없음.”

구분                    CT 핵심 소견                              감별 포인트
Internal hernia          clustered small bowel loops,               closed-loop이면 bowel ischemia 위험.
 / closed-loop           C/U-shaped loop, mesenteric swirl,          mesenteric edema, reduced enhancement,
                         converging vessels, 2 transition points     pneumatosis, ascites 보면 수술 쪽.

Mechanical SBO           proximal small bowel dilatation             transition point가 핵심.
                         >2.5–3 cm, distal bowel/colon collapse,     fecalization sign, beak sign,
                         air-fluid level, single transition point     원인 lesion/adhesion/hernia 확인.

Paralytic ileus           diffuse gaseous/fluid distension            mechanical obstruction처럼 한 지점에서
 / adynamic ileus         of small + large bowel, no focal TP         caliber change가 없어야 함.
                         colon/rectum gas preserved 가능             postop, sepsis, electrolyte, opioid 등 맥락.

응급실에서 놓치면 안 되는 CT red flags - closed-loop configuration - mesenteric swirl / vessel crowding - bowel wall hypoenhancement 또는 marked thickening - mesenteric edema, ascites - pneumatosis intestinalis, portal venous gas - free air

사진은 Radiopaedia teaching CT examples를 합쳐서 만든 비교 이미지입니다. 내용 근거: Radiopaedia Internal hernia, Small bowel obstruction, Adynamic ileus; ACR Appropriateness Criteria acute abdominal pain/suspected bowel obstruction.

(quick: gpt-5.5)