腮裂，是指咽部两侧一系列成对的裂缝，直接或间接与外界相通，主要存在于低等脊索动物及鱼类。
目的分析腮裂囊肿的CT表现及诊断价值。
Objective To investigate the ct manifestation and the key points of diagnosis of branchial cleft cyst.
典型的第二腮裂囊肿位于下颌角或稍下方。
A second BCC is typically found at or slightly below the Angle of the mandible.
目的：探讨腮裂瘘管及囊肿的临床特点及诊治方法。
Objective: To study the clinical features and the diagnosis and treatment of branchial fistula and cyst.
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