Dorsal extradural meningioma: Case report and literature review

Abstract

Background:Extradural spinal mass lesions are most commonly metastatic tumors. Extradural meningiomas are rare, accounting for approximately 2.5–3.5% of spinal meningiomas; intraoperatively, they are easily mistaken for malignant tumors, especially in the en plaque variety, resulting in inadequate surgical treatment.Case Description:Our case is one of the first to describe a patient with two purely extradural meningiomas, one each between D3–D4 and between D5–D6 vertebral levels. Surgical resection was radical, and pathologically both lesions were meningothelialmeningiomas.Conclusions:Reviewing the literature, we discuss the pathogenesis, treatment strategies, and long-term behavior of these uncommon lesions.

Imaging Appearances and Pathologic Characteristics of Spinal Epidural Meningioma

“…Among the 14 patients with epidural meningiomas in the current study, the male/female ratio was 4:10 and the mean age was 44.9 years; this sex distribution and age are consistent with those in previous reports. 10,17 In terms of tumor location, 12 tumors in this series were in the cervical spinal canal and 2 were in the thoracic spinal canal. This location is contrary to the findings of Frank et al, 18 who reported that the thoracic spine is the typical location of epidural meningioma.…”

Purely extradural spinal meningioma: A case report and literature review

“…Most patients present with pain (57%), motor deficits (57%), and sensory deficits (50%), typically over an average of 19 months. [ 2 - 5 ]…”

Spinal Epidural En Plaque Meningioma Misdiagnosed as Lymphoma: A Case Report

“…MRI is the modality of choice for the diagnosis of spinal meningioma because it clearly defines the mass and its relation to the spinal cord. Mostly, the lesion shows iso to hypointensity on T1-weighted images, variable signal intensity on T2-weighted images, with homogeneous enhancement after Gadolinium injection (1,6). Epidural meningiomas may be en plaque, dumbbell-shaped, or fusiform/ovoid (1).…”