【摘要】 目的：分析不典型的影像表现以提高诊断的准确性。材料和方法：收集不典型脑转移瘤２７例作回顾性影像分析。结果：不典型脑转移瘤可分为部位不典型１２例，影像学表现不典型１５例。结论：在转移瘤与脑内血肿的鉴别诊断应注意血肿周围含铁血黄素沉积圈的完整性和规则性；脑室内的转移瘤常有清楚的界面，但发生早期种植转移更多还原

【Abstract】 PURPOSE:To analyse the atypical intracerebral metastases(AICM)and improve the diagnostic accuracy. METARIALS AND METHODS:A retrospective study of 27 AICMs was performed. RESULTS:The AICMs were consisted of atypical locations in 12 cases and atypical appearances in 15 cases. RESULTS:The irregular and damaged hemosiderin rim may be a important clue to consideration of AICM in the differentiation of hemotoma; The intraventricular metastases are commonly well-circumscribed and tended to seed early.更多还原