原发性骨内囊性脑膜瘤：病例报告
A primary intraosseous cystic meningioma: Case report.
作者信息
Caruso Riccardo, Fini Giuseppina, Pesce Alessandro, Wierzbicki Venceslao, Marrocco Luigi, Piccione Emanuele, Pasquini Paola
机构信息
Army Hospital of Rome "Celio", Neurosurgery Department, Via S. Stefano Rotondo n. 4, 00184, Roma, Italy; Sapienza University of Rome, Department of Neurology and Psychiatry, Viale dell 'Università n.30, 00185, Roma, Italy.
Azienda Ospedaliera Sant'Andrea, Maxillofacial Surgery Department, Sapienza University of Rome, Italy, Via di Grottarossa 1035, 00189, Roma, Italy.
出版信息
Int J Surg Case Rep. 2017;37:189-192. doi: 10.1016/j.ijscr.2017.06.049. Epub 2017 Jun 29.
INTRODUCTION
This is a very rare case of intraosseous cystic meningioma. There have been no reports of similar cases in the last 30 years.
PRESENTATION OF CASE
A 62-year-old man, suffering from a swelling of the lateral wall of the left orbit was admitted to our hospital. MRI and CT scan showed a large intradiploic lesion involving the lateral wall of the orbit and the greater wing of the sphenoid. The lesion was cystic with a mural nodule. We operated the patient and removed completely the mural nodule and the fibrous wall of cyst. Histological examination showed that the mural nodule was a benign meningothelial meningioma.
DISCUSSION
Primary intraosseous meningiomas represent a subtype of primary extradural meningiomas; they comprise about 2% of all meningiomas and are therefore rare entities. Cystic meningiomas are rare, their incidence compared to all other types of meningiomas is of 2-4%. The presence of a meningioma with both characteristics: cystic and intraosseous, like in our case, is an exceptional occurrence.
CONCLUSION
The surgical management of tumor was easy; its rarity means that the case is interesting.
引言
这是一例极为罕见的骨内囊性脑膜瘤。在过去30年中尚无类似病例的报道。
病例介绍
一名62岁男性，因左眼眶外侧壁肿胀入住我院。磁共振成像（MRI）和计算机断层扫描（CT）显示，一个巨大的板障内病变累及眼眶外侧壁和蝶骨大翼。该病变为囊性，伴有壁结节。我们对患者进行了手术，完整切除了壁结节和囊肿的纤维壁。组织学检查显示壁结节为良性脑膜皮型脑膜瘤。
讨论
原发性骨内脑膜瘤是原发性硬膜外脑膜瘤的一种亚型；它们约占所有脑膜瘤的2%，因此是罕见的实体。囊性脑膜瘤很罕见，与所有其他类型的脑膜瘤相比，其发病率为2% - 4%。如我们病例中同时具备囊性和骨内这两种特征的脑膜瘤则极为罕见。
结论
肿瘤的手术处理较为容易；其罕见性意味着该病例很有意思。
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