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Frontal Sinus Osteoma Accompanied by Intracranial Mucocele and Local Hyperostosis Frontalis Interna
Yang Yang1, Liang Wang1, Zhen Wu1
1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.
Abstract:
Frontal sinus osteoma accompanied by intracranial mucocele and local hyperostosis frontalis interna has never been reported. A 47-year-old woman presented with a 3-month history of intermittent headache. Physical examination revealed no neurologic abnormality. Contrasted magnetic resonance imaging showed a frontal heterogeneously enhanced lesion with adjacent nonenhanced cyst. Computed tomography showed a bone density mass, which was accompanied by local hyperostosis frontalis interna, which filled the left frontal sinus and extended intracranially. The patient underwent a left frontobasal craniotomy. Both the osseous mass and cyst capsule were removed totally via a frontal craniotomy, followed by skull base reconstruction. The postoperative course was uneventful. The final pathologic diagnosis was osteoma and mucocele.
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