Mut Melike, Cataltepe Oğuz, Bakar Bülent, Cila Ayşenur, Akalan Nejat
Departmrnt of Neurosurgery, Hacettepe University Institute of Neurological and Psychiatric Sciences, Sihhiye, 06100 Ankara, Turkey.
Childs Nerv Syst. 2004 Oct;20(10):765-9. doi: 10.1007/s00381-004-0913-7.
Eosinophilic granuloma (EG), a benign bone lesion, represents a focal form of histiocytosis X. Here, the authors report a case of an extremely rare presentation of a solitary EG of the skull.
A 9-year-old boy presented with headache and vomiting for 3 days. His examination was unremarkable except for a tender mass in his left occipital region. Radiological studies revealed a huge bilateral epidural haematoma under the occipital bone, extending supratentorially and infratentorially, and a nonenhanced, epidural, soft tissue mass overlying the left transverse sinus. Evacuation of the epidural haematoma was performed and it was noted that the left transverse sinus wall was eroded by the EG at one point with venous oozing.
The acute presentation of a solitary EG of the skull with an epidural haematoma was described in only four cases in the literature. This is the first documented case in terms of the origin of an epidural haematoma.
嗜酸性肉芽肿（EG）是一种良性骨病变，是组织细胞增多症X的一种局灶性形式。在此，作者报告一例极为罕见的孤立性颅骨EG表现病例。
一名9岁男孩因头痛和呕吐3天就诊。除左枕部有一压痛性肿块外，其检查无异常。影像学研究显示枕骨下方巨大的双侧硬膜外血肿，向上延伸至幕上，向下延伸至幕下，以及左横窦上方一个无强化的硬膜外软组织肿块。进行了硬膜外血肿清除术，术中发现左横窦壁有一处被EG侵蚀并有静脉渗血。
文献中仅描述了4例颅骨孤立性EG伴硬膜外血肿的急性表现病例。就硬膜外血肿的起源而言，这是首例有记录的病例。
