J Korean Neurosurg Soc.  2014 Dec;56(6):509-512. 10.3340/jkns.2014.56.6.509.

Primary Osteolytic Intraosseous Atypical Meningioma with Soft Tissue and Dural Invasion: Report of a Case and Review of Literatures

• Yun JH
• Lee SK

• KMID: 2191146
• DOI: http://doi.org/10.3340/jkns.2014.56.6.509

Abstract

Primary intraosseous meningioma is a rare tumor, and atypical pathologic components both osteolytic lesion and dura and soft tissue invasion is extremely rare. A 65-year-old woman presented with a 5-month history of a soft mass on the right frontal area. MR imaging revealed a 4 cm sized, multilobulated, strongly-enhancing lesion on the right frontal bone, and CT showed a destructive skull lesion. The mass was adhered tightly to the scalp and dura mater, and it extended to some part of the outer and inner dural layers without brain invasion. The extradural mass and soft tissue mass were totally removed simultaneously and we reconstructed the calvarial defect with artificial bone material. The pathological study revealed an atypical meningioma as World Health Organization grade II. Six months after the operation, brain MR imaging showed that not found recurrence in both cranial and spinal lesion. Here, we report a case of primary osteolytic intraosseous atypical meningioma with soft tissue and dural invasion.

Keyword

Atypical; Intraosseous; Meningioma; Osteolysis

MeSH Terms

Aged
Brain
Dura Mater
Female
Frontal Bone
Humans
Magnetic Resonance Imaging
Meningioma*
Osteolysis
Recurrence
Scalp
Skull
World Health Organization