Radiosurgical treatment of recurrent hemangiopericytomas of the meninges: preliminary results

1993 ◽  
Vol 78 (6) ◽  
pp. 903-908 ◽  
Author(s):  
Robert J. Coffey ◽  
Terrence L. Cascino ◽  
Edward G. Shaw
Keyword(s):  
Radiation Therapy ◽  
Surgical Resection ◽  
Treatment Session ◽  
Tumor Shrinkage ◽  
Previous Surgery ◽  
Content Type ◽  
Intracranial Lesion ◽  
Visceral Metastases ◽  
Field Defect ◽  
Fine Print

✓ Hemangiopericytomas of the meninges, classified previously as angioblastic meningiomas, have a propensity to recur either locally or at distant sites within the nervous system after surgical resection. Visceral metastases also develop much more commonly in these lesions than in other types of histologically benign meningiomas. The radiosurgical gamma knife was used to treat five patients with 11 meningeal hemangiopericytomas (seven new, two recurrent, and two residual tumors) after surgical resection of an initially solitary intracranial lesion. Three patients had undergone multiple craniotomies and radiation therapy before referral, and two patients underwent a second radiosurgical procedure for lesions that appeared between 5 and 13 months after the first treatment session. Dramatic tumor shrinkage occurred in most patients within 6 to 10 months after treatment. The only treatment-related morbidity in this series was a partial visual-field defect in one patient with a large falx-tentorial junction hemangiopericytoma who had previously undergone radiation therapy. Radiosurgery appears to cause dramatic early shrinkage of small and medium-sized intracranial hemangiopericytomas that have recurred or developed after previous surgery and/or radiation therapy.

Surgical resection and radiation therapy versus biopsy and radiation therapy in the treatment of glioblastoma multiforme

1993 ◽  
Vol 78 (5) ◽  
pp. 762-766 ◽  
Author(s):  
Friedrich W. Kreth ◽  
Peter C. Warnke ◽  
Rudolf Scheremet ◽  
Christoph B. Ostertag
Keyword(s):  
Radiation Therapy ◽  
Glioblastoma Multiforme ◽  
Surgical Resection ◽  
Cytoreductive Surgery ◽  
Neurological Deficits ◽  
Karnofsky Performance Scale ◽  
Treatment Variable ◽  
Content Type ◽  
Resection Group ◽  
Fine Print

✓ There has been considerable controversy over the concept of treating glioblastoma multiforme with cytoreductive surgery. Therefore, a retrospective study of cases treated between 1986 and 1991 was conducted to analyze and compare the results of stereotactic biopsy followed by radiation therapy performed in 58 patients with those of surgical resection plus radiation therapy in 57 patients. In both groups, conventionally fractionated radiation (1.7 to 2.0 Gy/day) was delivered, with a total dose of 50 to 60 Gy. Biopsy was performed only in patients with tumors judged to be inoperable. These patients carried a higher surgical risk and were in worse neurological condition than the patients in the resection group. The median survival time for the resection group was 39.5 weeks, as compared with 32 weeks for the biopsy group. This difference was not significant. The most important prognostic factor was the patient's age. The treatment variable biopsy versus resection did not reach prognostic relevance. In patients with midline shift who underwent biopsy, the Karnofsky Performance Scale score decreased in more patients during radiation therapy. The clinical status 6 weeks after surgery, however, showed no significant differences between the two groups. The comparable survival times for the two groups place doubt on the concept of treating glioblastoma multiforme with cytoreductive surgery. Presently, radiation therapy is the most effective treatment for patients with glioblastoma. There is no question that decompressive surgery followed by radiation therapy should be performed whenever necessary for severe space-occupying lesions and when it will not cause new neurological deficits.

Management of intracranial plasmacytoma

1995 ◽  
Vol 83 (2) ◽  
pp. 218-221 ◽  
Author(s):  
Ajay K. Bindal ◽  
Rajesh K. Bindal ◽  
Harry van Loveren ◽  
Raymond Sawaya
Keyword(s):  
Multiple Myeloma ◽  
Radiation Therapy ◽  
Skull Base ◽  
Surgical Resection ◽  
Postoperative Period ◽  
Definitive Treatment ◽  
Content Type ◽  
Complete Surgical Resection ◽  
Fine Print

✓ The authors report on a study of eight cases of intracranial plasmacytoma to identify the risk of progression to multiple myeloma and suggest the treatment required for cure of solitary lesions. The diagnosis of multiple myeloma or myelomatous changes was made in the immediate postoperative period in four patients (50%), two of whom had skull base lesions. Of the four remaining patients, three were treated with complete surgical resection and radiation therapy and had no recurrence of plasmacytoma or progression to multiple myeloma during mean follow up of 12 years (range 2–25 years); one patient underwent subtotal surgical resection and had recurrence of the tumor despite radiation therapy. It is concluded that multiple myeloma is unlikely to develop during the long term in patients with intracranial plasmacytoma who do not develop multiple myeloma or myelomatous changes in the early postoperative period. However, lesions that infiltrate the skull base are not likely to be solitary, and patients who harbor these neoplasms should undergo complete evaluation and close follow-up review to exclude multiple myeloma. A recurrence of solitary intracranial plasmacytoma is possible with subtotal surgical resection despite radiation therapy. Definitive treatment should consist of complete surgical resection with adjuvant radiation therapy.

Primary intracerebral malignant lymphoma: report of 248 cases

2000 ◽  
Vol 92 (2) ◽  
pp. 261-266 ◽  
Author(s):  
Benoit Bataille ◽  
Vincent Delwail ◽  
Emmanuelle Menet ◽  
Pierre Vandermarcq ◽  
Pierre Ingrand ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Surgical Resection ◽  
Univariate Analysis ◽  
Large Cell ◽  
Tumor Location ◽  
Cranial Irradiation ◽  
Content Type ◽  
Medical Centers ◽  
Impact On Survival ◽  
Fine Print

Object. The authors present a retrospective analysis of 248 immunocompetent patients with primary intracerebral lymphoma treated at 19 French and Belgian medical centers between January 1980 and December 1995.Methods. This study involved 127 female and 121 male patients with a median age of 61 years (range 2–88 years). All tumors available for review were classic diffuse non-Hodgkin's lymphoma, for which the phenotype was determined in 220 patients: 212 (96.4%) were B-cell and eight (3.6%) were T-cell type tumors. According to the Revised European—American classification of lymphoid neoplasms, most lesions were diffuse large cell tumors (62%). A total of 196 tumors were reviewed in 127 patients for whom preoperative computerized tomography and magnetic resonance studies were available. There was a single lesion in 66% of the cases, with a supratentorial location in 87%. Tumor location in the basal ganglia, corpus callosum, or fornix, infiltration of the periventricular ependyma, or a mirror pattern, were strongly suggestive of a lesion of lymphomatous origin. The histological diagnosis was obtained after surgical resection in 116 patients, with the remainder undergoing biopsy sampling only. Of the 248 patients studied, 129 (52%) received chemotherapy plus radiation therapy, 60 (24%) received radiation therapy alone, 35 (14%) received chemotherapy alone, and 24 (10%) received no postsurgical treatment.Conclusions. Using univariate analysis, the authors determined prognostic factors that were significantly associated with a favorable impact on survival including age younger than 60 years, radiation therapy (without evidence of a dose—response relationship), radiation therapy combined with chemotherapy, and chemotherapy consisting of anthracycline. Partial surgical resection was an unfavorable prognostic factor. Multivariate analysis was used to confirm the independent prognostic value of radiation therapy, age, chemotherapy consisting of anthracyclines or methotrexate, and partial surgical resection. This European survey provides a reasonable basis for the treatment of primary intracerebral lymphoma with the following sequence: stereotactic biopsy sampling, chemotherapy with a methotrexate- and anthracycline-based regimen, followed by cranial irradiation.

Combined stereotactic split-course fractionated gamma knife radiosurgery and conventional radiation therapy for unfavorable gliomas: a phase I study

2000 ◽  
Vol 93 (supplement_3) ◽  
pp. 37-41 ◽  
Author(s):  
William F. Regine ◽  
Roy A. Patchell ◽  
James M. Strottmann ◽  
Ali Meigooni ◽  
Michael Sanders ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Disease Progression ◽  
Gamma Knife ◽  
Gamma Knife Radiosurgery ◽  
External Beam Radiation ◽  
Low Grade ◽  
Beam Radiation ◽  
Content Type ◽  
Group B ◽  
Fine Print

Object. This investigation was performed to determine the tolerance and toxicities of split-course fractionated gamma knife radiosurgery (FSRS) given in combination with conventional external-beam radiation therapy (CEBRT). Methods. Eighteen patients with previously unirradiated, gliomas treated between March 1995 and January 2000 form the substrate of this report. These included 11 patients with malignant gliomas, six with low-grade gliomas, and one with a recurrent glioma. They were stratified into three groups according to tumor volume (TV). Fifteen were treated using the initial FSRS dose schedule and form the subject of this report. Group A (four patients), had TV of 5 cm3 or less (7 Gy twice pre- and twice post-CEBRT); Group B (six patients), TV greater than 5 cm3 but less than or equal to 15 cm3 (7 Gy twice pre-CEBRT and once post-CEBRT); and Group C (five patients), TV greater than 15 cm3 but less than or equal to 30 cm3 (7 Gy once pre- and once post-CEBRT). All patients received CEBRT to 59.4 Gy in 1.8-Gy fractions. Dose escalation was planned, provided the level of toxicity was acceptable. All patients were able to complete CEBRT without interruption or experiencing disease progression. Unacceptable toxicity was observed in two Grade 4/Group B patients and two Grade 4/Group C patients. Eight patients required reoperation. In three (38%) there was necrosis without evidence of tumor. Neuroimaging studies were available for evaluation in 14 patients. Two had a partial (≥ 50%) reduction in volume and nine had a minor (> 20%) reduction in size. The median follow-up period was 15 months (range 9–60 months). Six patients remained alive for 3 to 60 months. Conclusions. The imaging responses and the ability of these patients with intracranial gliomas to complete therapy without interruption or experiencing disease progression is encouraging. Excessive toxicity derived from combined FSRS and CEBRT treatment, as evaluated thus far in this study, was seen in patients with Group B and C lesions at the 7-Gy dose level. Evaluation of this novel treatment strategy with dose modification is ongoing.

Gamma knife treatment for multiple metastatic brain tumors compared with whole-brain radiation therapy

2000 ◽  
Vol 93 (supplement_3) ◽  
pp. 32-36 ◽  
Author(s):  
Toru Serizawa ◽  
Toshihiko Iuchi ◽  
Junichi Ono ◽  
Naokatsu Saeki ◽  
Katsunobu Osato ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Gamma Knife ◽  
Gamma Knife Radiosurgery ◽  
Cerebral Metastases ◽  
Whole Brain Radiation Therapy ◽  
Whole Brain ◽  
Content Type ◽  
Whole Brain Radiation ◽  
Brain Radiation ◽  
Fine Print

Object. The purpose of this retrospective study was to compare the effectiveness of gamma knife radiosurgery (GKS) for multiple cerebral metastases with that of whole-brain radiation therapy (WBRT). Methods. Ninety-six consecutive patients with cerebral metastases from nonsmall cell lung cancer were treated between 1990 and 1999. The entry criteria were the presence of between one and 10 multiple brain lesions at initial diagnosis, no surgically inaccessible tumors with more than a 30-mm diameter, no carcinomatous meningitis, and more than 2 months of life expectancy. The patients were divided into two groups: the GKS group (62 patients) and the WBRT group (34 patients). In the GKS group, large lesions (> 30 mm) were removed surgically and all other small lesions (≤ 30 mm) were treated by GKS. New distant lesions were treated by repeated GKS without prophylactic WBRT. In the WBRT group, the patients were treated by the traditional combined therapy of WBRT and surgery. In both groups, chemotherapy was administered according to the primary physician's protocol. The two groups did not differ in terms of age, sex, initial Karnofsky Performance Scale (KPS) score, type, lesion number, and size of lesion, systemic control, and chemotherapy. Neurological survival and qualitative survival of the GKS group were longer than those of the WBRT group. In multivariate analysis, significant poor prognostic factors were systemically uncontrolled patients, WBRT group, and poor initial KPS score. Conclusions. Gamma knife radiosurgery without prophylactic WBRT could be a primary choice of treatment for patients with as many as 10 cerebral metastases from nonsmall cell cancer.

Monstrous, crablike hypertrophy of the cerebellar vermis and its relationship with Lhermitte—Duclos disease

1996 ◽  
Vol 85 (1) ◽  
pp. 157-162 ◽  
Author(s):  
Guillermo A. de León ◽  
John A. Grant ◽  
Crystal F. Darling
Keyword(s):  
Surgical Resection ◽  
Basic Structure ◽  
Cerebellar Vermis ◽  
Biological Behavior ◽  
Content Type ◽  
Neuroepithelial Cells ◽  
Poorly Differentiated ◽  
New Interpretation ◽  
Fine Print

✓ The case of an infant with a peculiar tumorous malformation of the cerebellum is described. The tumor apparently developed as an exophytic, hypertrophic sprout of the inferior vermis. It had a monstrous appearance resembling a crab, with a metameric body and multiple pairs of limbs attached to the folia of both cerebellar hemispheres. Histologically, the lesion was formed by poorly differentiated neuroepithelial cells without any evidence of organization into nuclei, cortex, or fascicles. Clinically, the tumor behaved in an indolent manner and did not regrow after subtotal surgical resection. Because of its gross appearance and its biological behavior, this unusual hamartoblastomatous growth is readily distinguished from medulloblastoma. The morphology of the cerebellum in Lhermitte—Duclos disease is reviewed, and a new interpretation of its basic structure is proposed. This and other known types of cerebellar hypertrophy are different from the malformation in the present case.

Progressive neurological dysfunction secondary to postoperative cervical pseudomeningocele in a C-4 quadriplegic

1978 ◽  
Vol 48 (2) ◽  
pp. 289-291 ◽  
Author(s):  
Kenneth P. Burres ◽  
Frances K. Conley
Keyword(s):  
Neurological Deficit ◽  
Neurological Symptoms ◽  
Diagnostic Evaluation ◽  
Neurological Dysfunction ◽  
Previous Surgery ◽  
Content Type ◽  
Progressive Neurological Deficit ◽  
Operative Closure ◽  
Fine Print

✓ A case is detailed of a patient who developed progressive neurological deficit above a fixed quadriplegic level at C-4 18 years after posterior cervical decompression for trauma. Diagnostic evaluation revealed a pseudomeningocele at the site of his previous surgery. Subsequent operative closure resulted in reversal of his neurological symptoms.

Intraoperative angiography in the resection of arteriovenous malformations

1994 ◽  
Vol 80 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Shigetaka Anegawa ◽  
Takashi Hayashi ◽  
Ryuichiro Torigoe ◽  
Katsuhiko Harada ◽  
Shun-ichi Kihara
Keyword(s):  
Surgical Resection ◽  
Arteriovenous Malformations ◽  
Three Dimensional ◽  
Initial Operation ◽  
Total Resection ◽  
Intraoperative Angiography ◽  
Content Type ◽  
Fine Print

✓ Surgical resection of 13 operatively obscure arteriovenous malformations (AVM's) was accomplished with the assistance of intraoperative angiography, which was performed stereographically to provide three-dimensional orientation and was repeated until total resection of the AVM was confirmed. All films obtained were subtracted to improve clarity. The method presented here may be useful for the resection of all types of AVM. Only two patients had residual AVM after the initial operation. No complications attributable to angiography were noted.

Teratomas of the central nervous system: treatment considerations based on 34 cases

1998 ◽  
Vol 89 (5) ◽  
pp. 728-737 ◽  
Author(s):  
Yutaka Sawamura ◽  
Tsutomu Kato ◽  
Jun Ikeda ◽  
Jun-ichi Murata ◽  
Mitsuhiro Tada ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Radiation Therapy ◽  
Adjuvant Therapy ◽  
Karnofsky Performance Scale ◽  
Content Type ◽  
Treatment Considerations ◽  
Low Incidence ◽  
A Prospective Study ◽  
Fine Print

Object. The optimum clinical management of central nervous system (CNS) teratomas, particularly postsurgical adjuvant therapy, is still unclear, partly as a result of the tumors' low incidence. In this study the authors analyze 34 cases of CNS teratomas so that they may adequately indicate management of these lesions. Methods. The median age of the 34 patients was 13 years. Twenty-seven patients treated between 1970 and 1991 were retrospectively reviewed. Four of these 27 patients died as a result of radical surgery; each of them had a teratoma involving the hypothalamus. After initial treatment, which included radiation therapy, 20 patients (48%) had died. In all seven cases of mature teratomas there was no recurrence. In two cases of immature teratomas in which there was complete surgical resection there was recurrence; however, salvage therapies were effective. Seven of eight patients with highly malignant teratomas died; for these patients salvage therapies, including repeated radiation and chemotherapy, failed. Seven patients who presented with CNS teratomas between 1992 and 1996 received adjuvant chemotherapy and radiation therapy according to a prospective study protocol. All seven patients were free from recurrence with a 70 to 100% Karnofsky Performance Scale score at a median follow-up period of 41 months. Patients with CNS teratomas rarely responded completely to chemotherapy or radiation therapy; an effective adjuvant therapy produced a partial response at best. Conclusions. Because teratomas show various responses to adjuvant therapy, a misdiagnosis of their histological subtype will lead to inadequate therapy. A diverse therapeutic protocol based on histological diagnosis is necessary to plan appropriate management. Treatment recommendations are discussed in detail in the article.

Surgical experience with chromophobe adenomas of the pituitary gland

1971 ◽  
Vol 34 (6) ◽  
pp. 726-729 ◽  
Author(s):  
Bronson S. Ray ◽  
Russell H. Patterson
Keyword(s):  
Radiation Therapy ◽  
Pituitary Gland ◽  
Operative Mortality ◽  
Postoperative Radiation ◽  
Surgical Experience ◽  
Postoperative Radiation Therapy ◽  
Content Type ◽  
Chromophobe Adenoma ◽  
First Time ◽  
Fine Print

✓ Between 1950 and 1969, 165 operations were performed on 146 patients for the treatment of chromophobe adenoma of the pituitary gland unassociated with either acromegaly or Cushing's syndrome. The over-all operative mortality was 1.2%, and no deaths occurred in 138 cases operated on for the first time. In 106 of the patients who had not received prior treatment, vision was improved in 80% of cases and returned to normal in 50%. In the group of patients whose initial treatment was surgery, postoperative radiation therapy was administered in one-half of the cases. The rate of recurrence was 8% in those who received radiation and 22% in those who did not. Recurrence of symptoms within less than 1 year often was due to a hemorrhagic cyst which could be treated better by reoperation than by radiation therapy.

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