Atypical Meningioma With Large Cyst-Case Report-

Senbokuya, Nobuo; Asahara, Takayuki; Uchida, Motoyuki; Yagishita, Tsutomu; Naganuma, Hirofumi

doi:10.2176/nmc.46.147

Cited by 7 publications

(6 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This suggests that the presence of cyst may not affect the extent of meningioma resection. The presence of cyst is believed to be re ective of higher grade meningioma [12,34,35,21]. Analogous to Weber et al [29], we noted that most cystic meningiomas were WHO grade I and had low Ki-67/MIB proliferation index.…”

Section: Discussionsupporting

confidence: 82%

Outcomes following surgical resection of cystic intracranial meningiomas

et al. 2022

View full text Add to dashboard Cite

IntroductionCystic meningiomas are rare, accounting for 2-7% of all intracranial meningiomas. Little is known regarding whether these meningiomas behave differently compared to solid meningiomas. We sought to study this relatively uncommon imaging appearance of meningioma and to evaluate its clinical signi cance. MethodsA single-institution retrospective cohort study of surgically-treated meningioma patients between 2000-2019 was conducted. Cystic meningioma was de ned as a tumor with an intratumoral or peritumoral cyst present on preoperative imaging. Demographics, preoperative imaging, histopathology characteristics, operative data, and surgical outcomes were reviewed. Imaging variables, histopathology and outcomes were reported for cystic meningiomas and compared with non-cystic meningiomas.Univariate/multivariable analyses were conducted. ResultsOf 737 total meningiomas treated surgically, 38 (5.2%) were cystic. Gross total resection (GTR) was achieved in 84.2% of cystic meningioma patients. Eighty-two percent of cystic meningiomas were WHO grade I (n = 31), 15.7% were grade II and 2.6% were grade III. Most cystic meningiomas had low Ki-67/MIB-1 proliferation index (n = 24, 63.2%). A total of 18.4% (n = 7) patients with cystic meningioma had recurrence compared to 12.2% (n = 80) of patients with non-cystic meningioma (p = 0.228). No signi cant difference in median time to recurrence was observed between cystic and non-cystic meningiomas (25.4,

show abstract

Section: Discussionsupporting

confidence: 82%

Outcomes following surgical resection of cystic intracranial meningiomas

et al. 2022

View full text Add to dashboard Cite

show abstract

“…4,8 Many etiologies have been suggested for cyst formation in meningiomas, which may represent rapid growth or aggressive behavior of tumor cells, including cystic degeneration, direct secretion of fluid by tumor cells, ischemic necrosis and absorption of hemorrhage within the tumors. 4,10,11 Our study showed that intratumoral cystic change was significantly more frequent in grade II/III meningiomas (43.8%) than in grade I meningiomas (6.8%) (p = 0.001).…”

Section: Discussionmentioning

confidence: 62%

Do aggressive imaging features correlate with advanced histopathological grade in meningiomas?

Hsu

Pai

Kao

et al. 2010

Journal of Clinical Neuroscience

View full text Add to dashboard Cite

“…9,19 The frequency of atypical meningioma among cystic meningioma is 12%, higher than that among all meningiomas, and suggests that atypical meningioma tends to form a cyst compared with other subtypes. 20 Review of the histological classification of 69 cystic meningiomas showed meningotheliomatous (42.0%) and fibroblastic (27.5%) lesions were the most common types. Lesions were malignant in 7.2% of cases.…”

Section: Discussionmentioning

confidence: 99%

Extra-Axial Cystic Meningioma without Dural Attachment in an Adult: Case Report and Review of Literature

et al. 2022

View full text Add to dashboard Cite

Intraparenchymal meningiomas, meningiomas without dural attachment, and cystic meningioma are atypical and extremely rare, especially in adults. Only four cases of intraparenchymal cystic meningioma without dural attachment have been reported. A 47-year-old female presented with an altered sensorium. She had a progressive bifrontal headache for 2 months. Computed tomography scan of the brain showed an 8 cm × 6 cm cystic lesion with a solid component in the left frontoparietal region with a midline shift. The solid part of the lesion was enhancing on contrast but the cyst rim was not. Intraoperatively, the cyst was filled with amber-colored fluid, which was drained, and the solid component was completely excised. Histopathological examination of the solid tumor component confirmed cystic meningioma. At 2 years of follow-up, she has no evidence of recurrence. We report the fifth case of this very rare entity and review the literature.

show abstract

Atypical Meningioma With Large Cyst-Case Report-

Cited by 7 publications

References 30 publications

Outcomes following surgical resection of cystic intracranial meningiomas

Outcomes following surgical resection of cystic intracranial meningiomas

Do aggressive imaging features correlate with advanced histopathological grade in meningiomas?

Extra-Axial Cystic Meningioma without Dural Attachment in an Adult: Case Report and Review of Literature

Contact Info

Product

Resources

About