Relevance of Simpson grading system and recurrence-free survival after surgery for World Health Organization Grade I meningioma

Nanda, Anil; Bir, Shyamal C.; Maiti, Tanmoy; Konar, Subhas; Missios, Symeon; Guthikonda, Bharat

doi:10.3171/2016.1.jns151842

Cited by 150 publications

(110 citation statements)

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“…In addition, WHO grade I meningioma have good prognosis after gross total resection. The recurrence rates of WHO Grade I convexity meningiomas are quite small (0.4%) after complete resection [15]. Our study also demonstrated good prognosis of angiomatous meningioma after gross total resection.…”

Section: Discussionsupporting

confidence: 69%

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Clinical and Radiological Characteristics of Angiomatous Meningiomas

Hwang

Kong

Seol

et al. 2016

Brain Tumor Res Treat

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BackgroundAngiomatous meningioma is a rare histological subtype of meningioma. Therefore, this specific medical condition is rarely reviewed in the literature. In the present work, we report the clinical and radiological features with postoperative outcomes of angiomatous meningioma.MethodsThis retrospective study included the patients who were pathologically diagnosed with angiomatous meningioma after surgical resection between February 2010 and September 2015 in our institute. We analyzed the clinical data, radiological manifestation, treatment and prognosis of all patients.ResultsThe 15 patients (5 males and 10 females) were diagnosed with angiomatous meningioma during the study period. The median age of patients at the time of surgery was 63 years (range: 40 to 80 years). According to Simpson classification, 7, 5, and 3 patients achieved Simpson grade I, II, and IV resection, respectively. In the follow-up period, recurrence was noted in one patient. Ten out of the 15 patients showed homogeneous enhancement. Two patients demonstrated cystic changes. There was no occurrence of calcification or hemorrhage in our patients. Characteristically, 14 out of 15 patients showed signal voids of vessels. Significant peritumoral edema was observed in the majority of tumors (67%).ConclusionAngiomatous meningiomas are rare benign meningioma. Brain images of angiomatous meningioma usually demonstrate signal void signs and peritumoral edema. In the present study, angiomatous meningiomas showed good prognosis after surgical resection.

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Section: Discussionsupporting

confidence: 69%

“…Since angiomatous meningioma belongs to this group, it has a similar behavior. In a recent study, overall tumor recurrence rates of WHO grade I meningioma for Simpson resection Grades I, II, III, and IV were 5%, 22%, 31%, and 35%, respectively [15]. In addition, WHO grade I meningioma have good prognosis after gross total resection.…”

Section: Discussionmentioning

confidence: 99%

Clinical and Radiological Characteristics of Angiomatous Meningiomas

Hwang

Kong

Seol

et al. 2016

Brain Tumor Res Treat

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“…10 Of gliomas and meningiomas, which are the major subgroup, the gliomas are more common in males and meningiomas are more common in females. 19,27 The white (Caucasian) race has been shown to be at moderate-to-high risk for gliomas, although a similar association is not evident for meningiomas. Based on tumor occurrence, a similar pattern is expected in the incidence of hydrocephalus in these patients.…”

Section: Tumorsmentioning

confidence: 98%

Epidemiology of adult-onset hydrocephalus: institutional experience with 2001 patients

Bir

Patra

Maiti

et al. 2016

FOC

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OBJECTIVE Adult-onset hydrocephalus is not commonly discussed in the literature, especially regarding its demographic distribution. In contrast to pediatric hydrocephalus, which is related to a primary CSF pathway defect, its development in adults is often secondary to other pathologies. In this study, the authors investigated the epidemiology of adult-onset hydrocephalus as it pertains to different etiologies and in reference to age, sex, and race distributions. METHODS The authors retrospectively reviewed the clinical notes of 2001 patients with adult-onset hydrocephalus who presented to Louisiana State University Health Sciences Center within a 25-year span. Significant differences between the groups were analyzed by a chi-square test; p < 0.05 was considered significant. RESULTS The overall mean (± SEM) incidence of adult hydrocephalus in this population was 77 ± 30 per year, with a significant increase in incidence in the past decade (55 ± 3 [1990–2003] vs 102 ± 6 [2004–2015]; p < 0.0001). Hydrocephalus in a majority of the patients had a vascular etiology (45.5%) or was a result of a tumor (30.2%). The incidence of hydrocephalus in different age groups varied according to various pathologies. The incidence was significantly higher in males with normal-pressure hydrocephalus (p = 0.03) or head injury (p = 0.01) and higher in females with pseudotumor cerebri (p < 0.0001). In addition, the overall incidence of hydrocephalus was significantly higher in Caucasian patients (p = 0.0002) than in those of any other race. CONCLUSIONS Knowledge of the demographic variations in adult-onset hydrocephalus is helpful in achieving better risk stratification and better managing the disease in patients. For general applicability, these results should be validated in a large-scale meta-analysis based on a national population database.

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“…Survival times are known to be prolonged if GTR is achieved in patients with glioblastoma. 7,8 In human patients with meningioma, GTR resulted in a decrease in the rate of recurrence 29 and prolonged survival. 30 The intraoperative use of FS may assist in the resection of homogeneously stained brain tumors in dogs, leading to improved rates of GTR and, hence, long-term survival; however, additional studies are required to confirm this.…”

Section: Discussionmentioning

confidence: 99%