Pathological and clinical features of cystic and noncystic glioblastomas.

Pathological and clinical features of cystic and noncystic glioblastomas. Research Abstract Details 

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Pathological and clinical features of cystic and noncystic glioblastomas. Abstract Text:

Satoshi Utsuki,Hidehiro Oka,Sachio Suzuki,Satoru Shimizu,Yoshinori Tanizaki,Koji Kondo,Satoshi Tanaka,Nobuyuki Kawano,Kiyotaka Fujii,

The aim of this study is to review the different histological and clinical characteristics of glioblastoma multiforme (GBM) with and without cysts (cystic and noncystic GBM, respectively). Thirty-seven GBM were collected; these were tumors for which more than 80% of the volume was surgically resected, including a portion of the peripheral parenchyma of the brain. Based on preoperative magnetic resonance (MR) imaging studies, tumors were tentatively classified as cystic GBM if more than 50% of their volume appeared to be liquid; otherwise, they were considered to be noncystic GBM. Tumor volumes were estimated from contrast-enhanced T(1)-weighted MR images. Edema was deduced from the maximum width of contrast-enhanced edges. Peritumoral pathological analysis showed distinct margins, indicating little or no infiltration of tumor cells into white matter. Five cases were classified as cystic and 32 were noncystic GBMs. There was a statistically significant difference in age (Mann-Whitney U test; P < 0.05) between the patients with cystic tumors (median, 44 years; range, 26-59 years) and those with noncystic tumors (median, 54 years; range, 26-81 years). Four of the cystic tumors and eight of the noncystic tumors were more than 5 cm in maximum diameter. Cystic GBMs had a well-defined tumor interface and less than 2-cm-thick peritumoral edema compared to the noncystic GBMs (Fisher's exact test; P < 0.05). For patients with cystic GBMs, median survival time after surgery was 19.8 months and the 2-year survival rate was 50%. Patients with noncystic GBMs had a median survival time of 12.8 months and a 2-year survival rate of only 17%. Median time to tumor recurrence was 13.3 months for patients harboring cystic GBMs and 8.5 months for those with noncystic GBMs (log-rank test; P < 0.05). Thus, the prognosis for cystic GBM was significantly better than that for noncystic GBM, possibly because cystic GBMs showed comparatively little infiltration of the peritumoral brain parenchyma.

Pathological and clinical features of cystic and noncystic glioblastomas. Publishing Authors By Initials

S Utsuki,H Oka,S Suzuki,S Shimizu,Y Tanizaki,K Kondo,S Tanaka,N Kawano,K Fujii,

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Pathological and clinical features of cystic and noncystic glioblastomas. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Brain tumor pathology

VOLUME: 23

Page Numbers: 29-34

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ISSN: 1433-7398

DAY: 20

MONTH: 12

YEAR: 2006

Pathological and clinical features of cystic and noncystic glioblastomas. Information

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LANGUAGE: eng

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AFFILIATION: Department of Neurosurgery, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa, 228-8555, Japan, utsuki@med.kitasato-u.ac.jp.

Country: Japan

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MEDLINETA: Brain Tumor Pathol

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