Solitary subdural osteoma: A case report and literature review.

Hu Yang, Liang Niu, Yinian Zhang, Juan Jia, Qiao Li, Junqiang Dai, Lei Duan, Yawen Pan

Journal: Clinical neurology and neurosurgery 2019;172():87-89

PMID: 29986201

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Abstract

BACKGROUND

Subdural osteomas are benign neoplasms that are rarely encountered. We report the case of a 64‑year‑old female patient with a left temporal subdural osteoma.

CASE DESCRIPTION

The patient presented with intermittent dizziness that first began two years earlier. Non-contrast computed tomography revealed a densely calcified left temporal extra-axial mass. Magnetic resonance imaging of the lesion revealed signal loss on T1-weighted and T2-weighted images and non-enhancement on Gadolinium enhanced T1-weighted images, and diffusion-weighted and ADC images demonstrated reduced values attributed to calcium-induced signal loss. Histologically, the lesion predominantly consisted of lamellar bone without bone marrow elements. The patient underwent stereotactic magnetic resonance imaging-guided neurosurgical resection and recovered without complication.

CONCLUSIONS

Subdural osteomas may not be enhanced on magnetic resonance imaging. Surgical tumourectomy can be considered for symptomatic patients with subdural osteomas.

Address: Department of Neurosurgery, Lanzhou University Second Hospital, China.; Department of Anesthesiology, Lanzhou University Second Hospital, China.; Department of Neurosurgery, Lanzhou University Second Hospital, China; Institute of Neurology, Lanzhou University Second Hospital, China. Electronic address: [email protected].

DOI: 10.1016/j.clineuro.2018.07.004

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MeSH Terms: Brain Neoplasms, Female, Gadolinium, Humans, Magnetic Resonance Imaging, Middle Aged, Osteoma, Subdural Space, Tomography, X-Ray Computed