Cystic meningiomas, a diagnostic and pathogenic challenge

Awada, A.; Scherman, Brian; Palkar, Vijay

doi:10.1016/s0720-048x(96)01148-5

Cited by 8 publications

(2 citation statements)

References 5 publications

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“…[13] Peritumoral cysts may frequently be caused by peritumoral edema into cyst, peritumoral demyelination, intratumoral hemorrhage, or entrapment of cerebrospinal fluid. [14–17] However, intratumoral cysts may result from ischemic necrosis, cystic degeneration, intratumoral hemorrhage, and active secretion of tumor cells. [2,13,14,18,19] In our opinion, as the solid part of cyst is frequently characterized by a rich blood supply, [5,12,20] we supposed that cyst formation in a meningioma might result from ultrafiltrate of tumor vessels and that increased permeability of tumor vessels may accelerate cyst formation.…”

Section: Discussionmentioning

confidence: 99%

A case report on cystic meningioma in cerebellopontine angle and recommendations for management

Wang

et al. 2018

Medicine

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Rationale:Cystic meningioma located at the cerebellopontine angle (CPA) is an extremely rare occurrence. It is frequently misdiagnosed preoperatively. Little is known about the clinical features and outcome of this rare disease.Patient concerns:A 70-year-old male presenting with progressive headache and gait disturbance.Diagnosis:According to the symptoms, signs, and Gd-enhanced magnetic resonance images (MRI), a preoperative diagnosis of hemangioblastoma located in left CPA was made. Finally, the histological examination revealed a meningioma.Interventions:A complete resection, including the part of the solid mass together with cyst, was performed.Outcomes:The postoperative course of the patient was uneventful, and no residual or recurrent tumor was found during the 24-month follow-up period.Lessons:Cystic meningioma should be included in the differential diagnosis of a CPA mass with atypical radiologic features, such as a large cyst and enhanced mural nodule. By summarizing the related literature, we found that the most common pathological subtype of CPA cystic meningioma is the clear cell subtype, which belongs to WHO grade II. Gross total resection including the enhanced cyst wall is extremely important. A close follow-up is necessary because of the high recurrence rate in this subset of meningioma.

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Section: Discussionmentioning

confidence: 99%

A case report on cystic meningioma in cerebellopontine angle and recommendations for management

Wang

et al. 2018

Medicine

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“…Necrotic lesions form a single cyst or multiple cysts, a peripheral brain tumor, tissue edema, ischemia, demyelination, or effusion enclosing with cerebrospinal fluid, or attaching to the formed cyst in the tumor outside the periphery of the external tumor. The proliferation of glial cells in the fluid of the cyst tumor may occur from any combination of the above [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Cystic meningioma of the brain

Long

2024

Nervenheilkunde

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Meningiomas with a cystic component are quite rare and account for 1.7–7.3 % of all intracranial meningiomas. The incidence of cystic meningioma in adults is 2–4 % of all meningiomas. Women have a higher incidence rate in comparison to men. Between 2014 and 2019, at the State Institution Romodanov Neurosurgery Institute of the National Academy of Medical Sciences of Ukraine, we collected data for a database of cystic meningioma cases. The data included preoperative imaging, surgery notes, and pathology reports. Over the course of 6 years, 1408 meningioma cases have been observed, and 1326 of those instances have undergone surgical treatment for intracranial meningioma. 73 (5.5 %) cases of cyst-associated meningiomas have been analyzed: 26 (2.0 %) of true cysts (primary), 47 (3.5 %) cases of pseudocysts (secondary). Nauta type IV was the most common cyst type accounting for 52.1 %, whereas atypical (27.4 %) and anaplastic (17.8 %) meningioma types were the most common histological subtypes. All patients were monitored for 24 months; only 73 patients had access to long-term monitoring, which lasted for an average of 49 months (range 36–96 months). The majority of atypical (2.7 %) and anaplastic (5.5 %) types of pseudocystic meningioma relapsed after radical tumor surgery removal. The preoperative diagnosis needs to be integrated with the examination performance, the surgical treatment is selected based on the Nauta classification, and most of the surgical operations can result in the complete resection of the tumor.

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