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hemangiopericytoma/œdème
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Comparison of CT perfusion parameters and microvessel density in intracranial hemangiopericytomas with peritumoral edema.
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OBJECTIVE
Intracranial hemangiopericytomas (HPCs) are rare, and they have a tendency for local recurrence and metastases. The purpose of this study was to evaluate the relationship between CT perfusion (CTP) parameters and microvessel density (MVD) of HPCs and compare CTP parameters in parenchyma
Quantitative evaluation of benign meningioma and hemangiopericytoma with peritumoral brain edema by 64-slice CT perfusion imaging.
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BACKGROUND
Hemangiopericytomas (HPCs) have a relentless tendency for local recurrence and metastases, differentiating between benign meningiomas and HPCs before surgery is important for both treatment planning and the prognosis appraisal. The purpose of this study was to evaluate the correlations
MRS study of meningeal hemangiopericytoma and edema: a comparison with meningothelial meningioma.
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Intracranial hemangiopericytomas (HPCs) are rare tumors and their radiological appearance resembles that of meningiomas, especially meningothelial meningiomas. To increase the knowledge on the biochemical composition of this type of tumor for better diagnosis and prognosis, we performed a molecular
Sudden death due to undiagnosed intracranial hemangiopericytoma.
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A previously healthy 9-year-old Japanese boy with a 4-day history of vomiting and headache died suddenly and unexpectedly. An external examination revealed no abnormalities other than foam around the mouth and nose. An internal examination revealed severe pulmonary edema and hemorrhagic
Primary cardiac hemangiopericytoma causing rupture of the right atrium and chronic cardiac tamponade.
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A 53-year-old woman presented with symptoms of dyspnea on exertion and edema of lower extremities. Chronic cardiac tamponade caused by the rupture of the right atrial wall was diagnosed by two-dimensional contrast echocardiography. Autopsy findings revealed primary cardiac hemangiopericytoma.
Treatment of advanced malignant hemangiopericytoma with combination adriamycin and DTIC: a report of four cases.
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One patient with a large inoperable malignant hemangiopericytoma and three patients with local recurrence and/or metastases were treated with combination adriamycin, 50 mg/m2, and DTIC, 600-700 mg/m2, intravenously every 4 weeks. Two achieved palliation, one with measureable shrinkage of tumor, and
Preoperative radiologic characters to predict hemangiopericytoma from angiomatous meningioma.
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BACKGROUND
Hemangiopericytoma is clinically difficult to be differentiated from angiomatous meningioma. We set out to determine if the preoperative MRI parameters can predict HPC from angiomatous meningioma.
METHODS
A retrospective review of medical records was conducted for12 HPC patients and 17
[X-ray computed tomographic aspects of malignant meningioma and meningeal hemangiopericytoma].
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OBJECTIVE
To correlate the computed tomography (CT) features with the histologic findings of meningiomas.
METHODS
The authors reviewed 184 intracranial meningiomas (161 primary and 23 recurrent lesions in 172 patients) and classified the lesions on the basis of six histologic characteristics as
Gamma Knife stereotactic radiosurgery for intracranial hemangiopericytomas.
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The purpose of this study is to determine the efficacy of Gamma Knife stereotactic radiosurgery (GK SRS) for intracranial hemangiopericytomas, and to investigate the optimal dose for successful tumor control without adverse effects. We evaluated 17 hemangiopericytomas of nine patients treated with
Apparent diffusion coefficient values in differential diagnosis and prognostic prediction of solitary of fibrous tumor/hemangiopericytoma (WHOII) and atypical meningioma.
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Signal value difference between white matter and tumor parenchyma in T1- and T2- weighted images may help differentiating solitary fibrous tumor/ hemangiopericytoma and angiomatous meningioma
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Background: Solitary fibrous tumor / hemangiopericytoma (SFT/HPC) has a similar radiographic appearance to angiomatous meningioma (AM). However, not like angiomatous meningioma with benign outcome, SFT/HPC tend to exhibit aggressive
MR imaging of intracranial hemangiopericytomas.
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OBJECTIVE
To describe the MR features of primary intracranial hemangiopericytomas (HPCs) on conventional imaging, diffusion and MR spectroscopy and aim to determinate distinguishing features from meningiomas.
METHODS
From 2006 to 2012, seven patients with pathologically confirmed primary
Intracranial hemangiopericytomas: MR and CT features.
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OBJECTIVE
To describe the MR and CT imaging features of hemangiopericytoma and to identify the characteristics that might distinguish them from meningioma.
METHODS
We retrospectively reviewed the CT and MR findings in 34 pathologically proved cases of hemangiopericytoma. We evaluated the size,
Thirty-nine cases of intracranial hemangiopericytoma and anaplastic hemangiopericytoma: a retrospective review of MRI features and pathological findings.
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OBJECTIVE
To retrospectively review the imaging features of surgically and pathologically confirmed intracranial hemangiopericytoma and anaplastic hemangiopericytoma.
METHODS
Thirty-nine cases of surgically and pathologically confirmed hemangiopericytoma and anaplastic hemangiopericytoma were
Comparison of ADC values of intracranial hemangiopericytomas and angiomatous and anaplastic meningiomas.
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OBJECTIVE
This study aimed to determine whether the use of apparent diffusion coefficient (ADC) values can improve the diagnostic efficacy of magnetic resonance imaging (MRI) to differentiate hemangiopericytoma (HPC) from angiomatous and anaplastic meningioma.
METHODS
Preoperative diffusion-weighted
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