患者女,52岁。9个月前头顶部撞伤,后渐发现有一蚕豆大小包块,有搏动感,随包块增大,搏动更加明显。后出现包块周围疼痛。在当地医院诊为“脓肿”,经穿刺抽出鲜红色液体。病后体重无变化。体检发现头顶部有一6cm×6cm包块,高出头皮约1.2cm,有压痛及搏动,搏动次数与脉率一致。颈部浅表淋巴结无肿大,甲状腺不肿大。甲状腺扫描:左上叶稀疏。血沉8mm/1h,血红 Female patient, 52 years old. 9 months ago hit the top of the head, and gradually found that there is a broad bean-sized mass, a sense of beating, with the mass increases, the beating more pronounced. Appeared after the mass of pain around the mass. In the local hospital diagnosed as “abscess”, by puncturing out bright red liquid. No change in body weight after illness. Physical examination found a 6cm × 6cm mass at the top of the head, about 1.2cm above the scalp, tenderness and pulsation, pulse frequency consistent with the pulse rate. Superficial cervical lymph nodes without swelling, thyroid enlargement. Thyroid scan: sparse left upper lobe. ESR 8mm / 1h, blood red