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.
A primary intraosseous cystic meningioma. case report / Caruso, Riccardo; Fini, Giuseppina; Pesce, Alessandro; Wierzbicki, Venceslao; Marrocco, Luigi; Piccione, Emanuele; Pasquini, Paola. - In: INTERNATIONAL JOURNAL OF SURGERY CASE REPORTS. - ISSN 2210-2612. - STAMPA. - 37:(2017), pp. 189-192. [10.1016/j.ijscr.2017.06.049]
A primary intraosseous cystic meningioma. case report
CARUSO, Riccardo;FINI, Giuseppina;PESCE, ALESSANDRO;
2017
Abstract
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.File | Dimensione | Formato | |
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