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目的提高对耳源性脑脓肿CT表现的认识和诊断水平。方法对21例脑脓肿患者行多层螺旋CT平扫与增强扫描后对其CT表现进行回顾性分析。结果病灶位于颞叶16例,小脑半球4例,顶叶1例;CT平扫表现为不规则片状低密度影,边界模糊,占位效应不明显16例;平扫表现为类圆形囊状低密度影5例,其中2例内有液气平面,注射造影剂后,斑片状、脑回样强化、环状强化17例;无明显强化4例。结论多层螺旋CT在耳源性脑脓肿的诊断中具有重要诊断价值。
Objective To improve the understanding and diagnosis of CT findings of otogenic brain abscess. Methods The CT findings of 21 patients with brain abscess were analyzed retrospectively after performing multi-slice spiral CT scan and enhanced scan. Results The lesions were located in 16 cases of temporal lobe, 4 cases of cerebellar hemispheres and 1 case of parietal lobe. CT showed irregular low-density lamellar lesions with vague boundary and no obvious space-occupying effect. 16 cases showed round-like cysts Like low density in 5 cases, of which 2 cases had a liquid-gas plane, injection of contrast agent, patchy, brain back-like enhancement, annular enhancement in 17 cases; no significant enhancement in 4 cases. Conclusion Multi-slice spiral CT has important diagnostic value in the diagnosis of otogenic brain abscess.