CAJ | 학술논문

目的：探讨非典型侵袭性垂体瘤的磁共振表现及误诊分析。方法复习20例经手术病理证实误诊为脊索瘤或脑膜瘤的非典型侵袭性垂体瘤的磁共振表现。结果本组20例 MR T1 WI 表现为等或稍低信号,T2 WI 为等或稍高信号；增强扫描为不均匀明显强化。动态增强曲线均表现为快速强化型。9例侵犯双侧海绵窦,垂体及垂体柄显示不清。其中12例向鞍上及前颅窝底生长者误诊为脑膜瘤；8例斜坡破坏者误诊为脊索瘤。结论侵袭性垂体瘤的 MR表现多种多样,应根据各种征象综合分析,以避免误诊。
목적：탐토비전형침습성수체류적자공진표현급오진분석。방법복습20례경수술병리증실오진위척색류혹뇌막류적비전형침습성수체류적자공진표현。결과본조20례 MR T1 WI 표현위등혹초저신호,T2 WI 위등혹초고신호；증강소묘위불균균명현강화。동태증강곡선균표현위쾌속강화형。9례침범쌍측해면두,수체급수체병현시불청。기중12례향안상급전로와저생장자오진위뇌막류；8례사파파배자오진위척색류。결론침습성수체류적 MR표현다충다양,응근거각충정상종합분석,이피면오진。
Objective To investigate MR findings and analysis of misdiagnosis of atypical invasive pituitary adenoma.Methods The MR findings of twenty cases of atypical invasive pituity adenomas confirmed by pathology were reviewed ,which were misdiag-nosed as chordomas or meningiomas.Results All the twenty cases showed iso-or slightly hypo-signal on T1 WI,iso-or slightly hy-per-signal on T2 WI;Enhanced scan displayed heterogeneous enhancement.The dynamic enhancement curve showed rapid enhance-ment phase.The bilateral cavernous sinuswere infringed in nine cases,in which the pituity and pituity stalk were not well seen. Among the twenty cases,twelve cases with suprasellar and anterior cranial fossa extension were misdiagnosed as meningiomas;eight cases with clival destruction were misdiagnosed as chordomas.Conclusion The MR features of atypical invasive pituity adenomas are various.In order to avoid misdiagnosis,a comprehensive analysis should be based on a variety of signs.