Guzmán-De-Villoria Juan A, Fernández-García Pilar, Ferreiro-Argüelles Concepción
Department of Radiology/Neuroradiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
Semin Ultrasound CT MR. 2010 Jun;31(3):246-59. doi: 10.1053/j.sult.2010.03.001.
Brainstem lesions can be classified as focal or diffuse. Magnetic resonance imaging is the most suitable imaging modality for evaluating these lesions. As a rule, focal lesions are not large and have well-defined margins. Causes include tumors, vascular malformations, demyelinating diseases, brain abscesses, hypertrophic olivary degeneration, and dilated Virchow-Robin spaces. Differential diagnoses of these numerous entities mandates a review of magnetic resonance imaging findings in conjunction with epidemiologic aspects, clinical features, and other medical test results.
脑干病变可分为局灶性或弥漫性。磁共振成像（MRI）是评估这些病变最合适的成像方式。通常，局灶性病变不大且边界清晰。病因包括肿瘤、血管畸形、脱髓鞘疾病、脑脓肿、肥大性橄榄核变性和扩张的Virchow-Robin间隙。对这些众多疾病进行鉴别诊断需要结合流行病学特征、临床特点和其他医学检查结果来回顾磁共振成像的表现。
