Kim Min Ju
J Korean Soc Radiol. 2023 May;84(3):565-585. doi: 10.3348/jksr.2023.0018. Epub 2023 May 30.
Perianal fistula is a common inflammatory condition in the general population and affects the area around the anal canal. Although most cases are benign, they cause serious morbidity and require surgical treatment due to a high risk of recurrence. MR imaging is a gold standard technique for the evaluation of perianal fistulas and provides accurate information on the anatomy of the anal canal, its relationship to the anal sphincter complex, accurate identification of secondary tracts or abscesses, and reporting associated complications. MR imaging can help monitor treatment effects and determine treatment methods. Crohn's disease-related fistulas often require medical rather than surgical treatment. The radiologist is required to know the anatomy and MR imaging findings of the perianal fistula to present an accurate diagnosis to the clinician.
肛周瘘是普通人群中一种常见的炎症性疾病，累及肛管周围区域。尽管大多数病例为良性，但由于复发风险高，它们会导致严重的发病率且需要手术治疗。磁共振成像（MR）是评估肛周瘘的金标准技术，可提供有关肛管解剖结构、其与肛门括约肌复合体的关系、准确识别继发管道或脓肿以及报告相关并发症的准确信息。MR成像有助于监测治疗效果并确定治疗方法。克罗恩病相关的瘘通常需要药物治疗而非手术治疗。放射科医生需要了解肛周瘘的解剖结构和MR成像表现，以便向临床医生提供准确的诊断。
