scholarly journals Image-guided stereotactic radiosurgery for treatment of spinal hemangioblastoma

2017 ◽  
Vol 42 (1) ◽  
pp. E12 ◽  
Author(s):  
James Pan ◽  
Allen L. Ho ◽  
Myreille D'Astous ◽  
Eric S. Sussman ◽  
Patricia A. Thompson ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Symptomatic Relief ◽  
Symptomatic Improvement ◽  
Attractive Alternative ◽  
Imaging Evaluation ◽  
Image Guided ◽  
Contrast Enhanced Ct ◽  
The Mean ◽  
Vhl Disease

OBJECTIVE Stereotactic radiosurgery (SRS) has been an attractive treatment option for hemangioblastomas, especially for lesions that are surgically inaccessible and in patients with von Hippel-Lindau (VHL) disease and multiple lesions. Although there has been a multitude of studies examining the utility of SRS in intracranial hemangioblastomas, SRS has only recently been used for spinal hemangioblastomas due to technical limitations. The purpose of this study is to provide a long-term evaluation of the effectiveness of image-guided radiosurgery in halting tumor progression and providing symptomatic relief for spinal hemangioblastomas. METHODS Between 2001 and 2011, 46 spinal hemangioblastomas in 28 patients were treated using the CyberKnife image-guided radiosurgery system at the authors' institution. Fourteen of these patients also had VHL disease. The median age at treatment was 43.5 years (range 19–85 years). The mean prescription radiation dose to the tumor periphery was 21.6 Gy (range 15–35 Gy). The median tumor volume was 0.264 cm3 (range 0.025–70.9 cm3). Tumor response was evaluated on serial, contrast-enhanced CT and MR images. Clinical response was evaluated by clinical and imaging evaluation. RESULTS The mean follow-up for the cohort was 54.3 months. Radiographic follow-up was available for 19 patients with 34 tumors; 32 (94.1%) tumors were radiographically stable or displayed signs of regression. Actuarial control rates at 1, 3, and 5 years were 96.1%, 92.3%, and 92.3%, respectively. Clinical evaluation on follow-up was available for 13 patients with 16 tumors; 13 (81.2%) tumors in 10 patients had symptomatic improvement. No patient developed any complications related to radiosurgery. CONCLUSIONS Image-guided SRS is safe and effective for the primary treatment of spinal hemangioblastomas and is an attractive alternative to resection, especially for those with VHL disease.

STEREOTACTIC RADIOSURGICAL TREATMENT OF CRANIAL AND SPINAL HEMANGIOBLASTOMAS

Neurosurgery ◽  
2009 ◽  
Vol 65 (1) ◽  
pp. 79-85 ◽  
Author(s):  
Jason M. Moss ◽  
Clara Y.H. Choi ◽  
John R. Adler ◽  
Scott G. Soltys ◽  
Iris C. Gibbs ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Treatment Effectiveness ◽  
Attractive Alternative ◽  
Von Hippel Lindau ◽  
Spinal Lesions ◽  
Large Patient ◽  
Von Hippel Lindau Disease ◽  
The Mean

ABSTRACT OBJECTIVE Stereotactic radiosurgery has been used for nearly 2 decades to treat hemangioblastomas, particularly those that are in surgically inaccessible locations or that are multiple, as is common in von Hippel-Lindau disease. There is a paucity of long-term published radiosurgical treatment outcomes, particularly for spinal lesions, in a large patient population. The purpose of this study was to provide a long-term retrospective evaluation of radiosurgical hemangioblastoma treatment effectiveness, with a special emphasis on the relatively recent use of frameless, image-guided radiosurgery in the treatment of spinal lesions. METHODS From 1991 to 2007, 92 hemangioblastomas in 31 patients, 26 with von Hippel-Lindau disease, were treated with radiosurgery (27 tumors treated with frame-based linear accelerator radiosurgery, and 67 tumors were treated with CyberKnife radiosurgery). The mean patient age was 41 years (range, 18–81 years). The radiation dose to the tumor periphery averaged 23.4 Gy (range, 12–40 Gy). The mean tumor volume was 1.8 cm3 (range, 0.058–65.4 cm3). Tumor response was evaluated in serial, contrast-enhanced, computed tomographic, and magnetic resonance imaging scans. RESULTS Clinical and radiographic follow-up data were available for 82 hemangioblastoma tumors. Only 13 (16%) of the treated hemangioblastomas progressed, whereas 18 tumors (22%) showed radiographic regression, and 51 tumors (62%) remained unchanged in size. With median follow-up of 69 months (range, 5–164 months), the actuarial local control rates at 36 and 60 months were 85% and 82%, respectively. Radiosurgery improved lesion-associated symptoms in 36 of 41 tumors. During the follow-up period, 9 patients died of causes unrelated to the progression of their treated hemangioblastomas, and 5 patients developed radiation necrosis. CONCLUSION Stereotactic radiosurgery is safe and effective in the treatment of hemangioblastomas and is an attractive alternative to surgery for patients, including those with von Hippel-Lindau disease.

scholarly journals Biological and clinical impact of hemangioblastoma-associated peritumoral cysts in von Hippel-Lindau disease

2016 ◽  
Vol 124 (4) ◽  
pp. 971-976 ◽  
Author(s):  
Kristin Huntoon ◽  
Tianxia Wu ◽  
J. Bradley Elder ◽  
John A. Butman ◽  
Emily Y. Chew ◽  
...  
Keyword(s):  
Clinical Impact ◽  
Anatomical Location ◽  
Von Hippel Lindau ◽  
Study Enrollment ◽  
Common Location ◽  
Younger Age ◽  
The Mean ◽  
A Prospective Study ◽  
Vhl Disease

OBJECT Peritumoral cysts are frequently associated with CNS hemangioblastomas and often underlie neurological morbidity and mortality. To determine their natural history and clinical impact, the authors prospectively analyzed hemangioblastoma-associated peritumoral cysts in patients with von Hippel-Lindau (VHL) disease. METHODS Patients with VHL disease who had 2 or more years of follow-up and who were enrolled in a prospective study at the National Institutes of Health were included. Serial prospectively acquired laboratory, genetic, imaging, and clinical data were analyzed. RESULTS One hundred thirty-two patients (of 225 in the VHL study with at least 2 years of follow-up) had peritumoral cysts that were followed for more than 2 years (total of 292 CNS peritumoral cysts). The mean age at study entrance was 37.4 ± 13.1 years ([mean ± SD], median 37.9, range 12.3–65.1 years). The mean follow-up was 7.0 ± 1.7 years (median 7.3, range 2.1–9.0 years). Over the study period, 121 of the 292 peritumoral cysts (41.4%) became symptomatic. Development of new cysts was associated with a larger number cysts at study enrollment (p = 0.002) and younger age (p < 0.0001). Cyst growth rate was associated with anatomical location (cerebellum cysts grew faster than spine and brainstem cysts; p = 0.0002 and p = 0.0008), younger age (< 35 years of age; p = 0.0006), and development of new neurological symptoms (p < 0.0001). Cyst size at symptom production depended on anatomical location (p < 0.0001; largest to smallest were found, successively, in the cerebellum, spinal cord, and brainstem). The most common location for peritumoral cysts was the cerebellum (184 cysts [63%]; p < 0.0001). CONCLUSIONS Peritumoral cysts frequently underlie symptom formation that requires surgical intervention in patients with VHL disease. Development of new cysts was associated with a larger number of cysts at study enrollment and younger age. Total peritumoral cyst burden was associated with germline partial deletion of the VHL gene.

STEREOTACTIC RADIOSURGERY FOR CAVERNOUS SINUS OR ORBITAL HEMANGIOMAS

Neurosurgery ◽  
2009 ◽  
Vol 65 (5) ◽  
pp. 914-918 ◽  
Author(s):  
Aftab A. Khan ◽  
Ajay Niranjan ◽  
Hideyuki Kano ◽  
Douglas Kondziolka ◽  
John C. Flickinger ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Cavernous Sinus ◽  
Tumor Regression ◽  
Target Volume ◽  
Symptomatic Improvement ◽  
Primary Treatment ◽  
Vascular Tumors ◽  
Presenting Symptoms ◽  
Primary Treatment Modality

Abstract OBJECTIVE Hemangiomas are rare but highly vascular tumors that may develop in the cavernous sinus or orbit. These tumors pose diagnostic as well as therapeutic challenges to neurosurgeons during attempted removal. We analyzed our increasing experience using stereotactic radiosurgery (SRS). METHODS Eight symptomatic patients with hemangiomas underwent SRS between 1988 and 2007. The presenting symptoms included headache, orbital pain, diplopia, ptosis, proptosis and impaired visual acuity. The hemangiomas were located in either the cavernous sinus (7 patients) or the orbit (1 patient). Four patients underwent SRS as primary treatment modality based on clinical and imaging criteria. Four patients had previous microsurgical partial excision or biopsy. The median target volume was 6.8 mL (range, 2.5–18 mL). The median prescription dose delivered to the margin was 14.5 Gy (range, 12.5–19 Gy). The dose to the optic nerve in all patients was less than 9 Gy (range, 4.5–9 Gy). RESULTS The median follow-up period after SRS was 80 months (range, 40–127 months). Six patients had symptomatic improvement; 2 patients reported persistent diplopia. Follow-up imaging revealed tumor regression in 7 patients and no change in tumor volume in 1 patient. All the patients improved after SRS. CONCLUSION Our extended experience confirms that SRS is an effective management strategy for symptomatic intracavernous and intraorbital hemangiomas. Our study is the first long-term report on the safety and efficacy of SRS.

scholarly journals Endoscopic Ultrasound-Guided Drainage without Fluoroscopic Guidance for Extraluminal Complicated Cysts

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Hyeong Seok Nam ◽  
Hyung Wook Kim ◽  
Dae Hwan Kang ◽  
Cheol Woong Choi ◽  
Su Bum Park ◽  
...  
Keyword(s):  
Endoscopic Ultrasound ◽  
Complete Resolution ◽  
Symptomatic Improvement ◽  
Lesion Size ◽  
Endoscopic Drainage ◽  
Fluoroscopic Guidance ◽  
The Mean ◽  
Fluid Collections ◽  
Mean Time

Background. Endoscopic ultrasound- (EUS-) guided drainage is generally performed under fluoroscopic guidance. However, improvements in endoscopic and EUS techniques and experience have led to questions regarding the usefulness of fluoroscopy. This study aimed to retrospectively evaluate the safety and efficacy of EUS-guided drainage of extraluminal complicated cysts without fluoroscopic guidance.Methods. Patients who had undergone nonfluoroscopic EUS-guided drainage of extraluminal complicated cysts were enrolled. Drainage was performed via a transgastric, transduodenal, or transrectal approach. Single or double 7 Fr double pigtail stents were inserted.Results. Seventeen procedures were performed in 15 patients in peripancreatic fluid collections (n=13) and pelvic abscesses (n=4). The median lesion size was 7.1 cm (range: 2.8–13.0 cm), and the mean time spent per procedure was26.2±9.8minutes (range: 16–50 minutes). Endoscopic drainage was successful in 16 of 17 (94.1%) procedures. There were no complications. All patients experienced symptomatic improvement and revealed partial to complete resolution according to follow-up computed tomography findings. Two patients developed recurrent cysts that were drained during repeat procedures, with eventual complete resolution.Conclusion. EUS-guided drainage without fluoroscopic guidance is a technically feasible, safe, and effective procedure for the treatment of extraluminal complicated cysts.

scholarly journals The role of radiosurgery for hemangiopericytomas

2003 ◽  
Vol 14 (5) ◽  
pp. 1-5 ◽  
Author(s):  
Steven D. Chang ◽  
Gordon T. Sakamoto
Keyword(s):  
Stereotactic Radiosurgery ◽  
Distant Metastases ◽  
Residual Tumor ◽  
High Rate ◽  
Tumor Control ◽  
Small Subset ◽  
Patient Database ◽  
The Mean

Object Hemangiopericytomas represent a small subset of meningeal tumors. Despite their relatively uncommon nature, they are aggressive tumors known for recurrence. Resection is the standard treatment in most, although regrowth and metastases are common even after resection. The authors evaluate the role of stereotactic radiosurgery in the treatment of recurrent hemangiopericytomas. Methods In a review of the Stanford radiosurgery patient database between 1989 and 2002, the authors found eight patients with recurrent hemangiopericytoma who underwent stereotactic radiosurgery. The mean age of this population was 45.1 years (range 24–67 years). All patients had been previously treated with resection, and five patients (63%) had undergone conventional radiotherapy. The mean radiosurgery dose to the tumor margin was 20.5 Gy (range 16–24 Gy). The mean clinical and radiographic follow-up period was 44 months (range 8–77 months). Of the eight tumors treated with radiosurgery, six decreased in size and two ultimately progressed. There were no radiosurgery-related complications. Conclusions Stereotactic radiosurgery of hemangiopericytomas can result in increased tumor control and should be considered as a treatment option for patients in whom the diagnosis has been established and in whom residual tumor is demonstrated postoperatively. Close clinical and radiographic follow-up evaluation is necessary in this patient population because of the high rate of local recurrence and distant metastases.

The long-term results of gamma knife radiosurgery for hemangioblastomas of the brain

2005 ◽  
Vol 102 ◽  
pp. 225-229 ◽  
Author(s):  
En-Min Wang ◽  
Li Pan ◽  
Bing-Jiang Wang ◽  
Nan Zhang ◽  
Liang-Fu Zhou ◽  
...  
Keyword(s):  
Gamma Knife ◽  
Tumor Control ◽  
Content Type ◽  
Prescription Dose ◽  
The Mean ◽  
Vhl Disease ◽  
The Brain ◽  
Fine Print

Object. The authors assessed the long-term result of gamma knife surgery (GKS) for hemangioblastomas of the brain (HABs) and show histopathological findings after GKS. Methods. Thirty-five patients, 28 men and seven women, with a mean age of 36 years underwent GKS. Eighteen patients presented with multiple tumors and 17 with a solitary tumor. Twenty-one patients had von Hippel—Lindau (VHL) disease. The mean tumor diameter was 13 mm (range 5–55 mm). The mean follow up after GKS was 66 months (range 24–114 months). The mean prescription dose was 17.2 Gy (range 12–24 Gy) at the tumor margin. For tumors close to or within the brainstem a prescription dose of 12 to 13 Gy was used. At the most recent follow up, 29 patients were alive, six were dead, and satisfactory tumor control had been achieved in 29. A stable or improved neurological status was obtained in 21 patients. Eight patients underwent open surgery because of tumor-associated cyst enlargement or the development of new tumors after GKS. Seven patients developed new tumors and five of them required a second GKS. The 1-year tumor control rate was 94%; 2 years, 85%; 3 years, 82%; 4 years, 79%; and 5 years, 71%. Histopathology showed that no tumor cells were found and there was degeneration and necrosis in a tumor nodule 48 months after GKS with a prescription dose of 18 Gy. Conclusions. Gamma knife surgery was a useful choice for small- or medium-sized, solid HAB in the long term, especially when the tumor margin dose was 18 Gy. Although GKS can treat multiple tumors in a single session, for HABs associated with VHL disease, GKS faces the dual problems of tumor recurrence or development of a new tumor.

The natural history of pineal cysts in children and young adults

2010 ◽  
Vol 5 (2) ◽  
pp. 162-166 ◽  
Author(s):  
Wajd N. Al-Holou ◽  
Cormac O. Maher ◽  
Karin M. Muraszko ◽  
Hugh J. L. Garton
Keyword(s):  
Natural History ◽  
Mr Imaging ◽  
Initial Study ◽  
Older Children ◽  
Imaging Evaluation ◽  
Imaging Appearance ◽  
Imaging Characteristics ◽  
History Of ◽  
The Mean

Object The authors reviewed their experience with pediatric pineal cysts to define the natural history and clinical relevance of this common intracranial finding. Methods The authors identified all patients with pineal cysts who had been clinically evaluated at their institution over an 11.5-year interval and were < 25 years of age at the time of diagnosis. All inclusion criteria were met in 106 patients, and included repeated MR imaging as well as repeated clinical evaluation over at least a 6-month interval. Results The mean age at diagnosis was 11.7 ± 7.2 years. Forty-two patients were male and 64 were female. On follow-up MR imaging evaluation at a mean interval of 3.0 years from the initial study, 98 pineal cysts had no increase in size and no change in imaging appearance. Six pineal cysts increased in size and 2 others had a change in imaging characteristics without associated growth. Younger age was associated with cyst change or growth on follow-up imaging (p = 0.02). The mean age of patients with cysts that changed or grew was 5.5 years, and the mean age of patients with stable pineal cysts was 12.2 years. Initial cyst size and appearance on MR imaging were not significant predictors of growth or change in imaging appearance at follow-up. Similarly, the patient's sex was not a significant predictor of growth or change in imaging characteristics. Conclusions Follow-up imaging and neurosurgical evaluation may be considered optional in older children with pineal cysts.

Long-term outcome of Gamma Knife stereotactic radiosurgery for arteriovenous malformations graded by the Spetzler-Martin classification

2013 ◽  
Vol 118 (1) ◽  
pp. 74-83 ◽  
Author(s):  
Michael T. Koltz ◽  
Adam J. Polifka ◽  
Andreas Saltos ◽  
Robert G. Slawson ◽  
Young Kwok ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Arteriovenous Malformations ◽  
Lesion Size ◽  
Karnofsky Performance Scale ◽  
The Mean ◽  
Gamma Knife Stereotactic Radiosurgery ◽  
Karnofsky Performance Scale Score ◽  
Performance Scale

Object The object of this study was to assess outcomes in patients with arteriovenous malformations (AVMs) treated by Gamma Knife stereotactic radiosurgery (SRS); lesions were stratified by size, symptomatology, and Spetzler-Martin (S-M) grade. Methods The authors performed a retrospective analysis of 102 patients treated for an AVM with single-dose or staged-dose SRS between 1993 and 2004. Lesions were grouped by S-M grade, as hemorrhagic or nonhemorrhagic, and as small (< 3 cm) or large (≥ 3 cm). Outcomes included death, morbidity (new neurological deficit, new-onset seizure, or hemorrhage/rehemorrhage), nidus obliteration, and Karnofsky Performance Scale score. Results The mean follow-up was 8.5 years (range 5–16 years). Overall nidus obliteration (achieved in 75% of patients) and morbidity (19%) correlated with lesion size and S-M grade. For S-M Grade I–III AVMs, nonhemorrhagic and hemorrhagic combined, treatment yielded obliteration rates of 100%, 89%, and 86%, respectively; high functional status (Karnofsky Performance Scale Score ≥ 80); and 1% mortality. For S-M Grade IV and V AVMs, outcomes were less favorable, with obliteration rates of 54% and 0%, respectively. The AVMs that were not obliterated had a mean reduction in nidus volume of 69% (range 35%–96%). On long-term follow-up, 10% of patients experienced hemorrhage/rehemorrhage (6% mortality rate), which correlated with lesion size and S-M grade; the mean interval to hemorrhage was 81 months. Conclusions For patients with S-M Grade I–III AVMs, SRS offers outcomes that are favorable and that, except for the timing of obliteration, appear to be comparable to surgical outcomes reported for the same S-M grades. Staged-dose SRS results in lesion obliteration in half of patients with S-M Grade IV lesions.

scholarly journals Cyst formation after stereotactic radiosurgery for brain arteriovenous malformations: a systematic review

2018 ◽  
Vol 128 (5) ◽  
pp. 1354-1363 ◽  
Author(s):  
Adeel Ilyas ◽  
Ching-Jen Chen ◽  
Dale Ding ◽  
Panagiotis Mastorakos ◽  
Davis G. Taylor ◽  
...  
Keyword(s):  
Systematic Review ◽  
Stereotactic Radiosurgery ◽  
Arteriovenous Malformations ◽  
Time Course ◽  
Surgical Intervention ◽  
Latency Period ◽  
Cyst Formation ◽  
Brain Arteriovenous Malformations ◽  
The Mean

OBJECTIVECyst formation can occasionally occur after stereotactic radiosurgery (SRS) for brain arteriovenous malformations (AVMs). Given the limited data regarding post-SRS cyst formation in patients with AVM, the time course, natural history, and management of this delayed complication are poorly defined. The aim of this systematic review was to determine the incidence, time course, and optimal management of cyst formation after SRS for AVMs.METHODSA literature review was performed using PubMed to identify studies reporting cyst formation in AVM patients treated with SRS. Baseline and outcomes data, including the incidence and management of post-SRS cysts, were extracted from each study that reported follow-up duration. The mean time to cyst formation was calculated from the subset of studies that reported individual patient data.RESULTSBased on pooled data from 22 studies comprising the incidence analysis, the overall rate of post-SRS cyst formation was 3.0% (78/2619 patients). Among the 26 post-SRS cyst patients with available AVM obliteration data, nidal obliteration was achieved in 20 (76.9%). Of the 64 cyst patients with available symptomatology and management data, 21 (32.8%) were symptomatic; 21 cysts (32.8%) were treated with surgical intervention, whereas the remaining 43 (67.2%) were managed conservatively. Based on a subset of 19 studies reporting individual time-to-cyst-formation data from 63 patients, the mean latency period to post-SRS cyst formation was 78 months (6.5 years).CONCLUSIONSCyst formation is an uncommon complication after SRS for AVMs, with a relatively long latency period. The majority of post-SRS cysts are asymptomatic and can be managed conservatively, although enlarging or symptomatic cysts may require surgical intervention. Long-term follow-up of AVM patients is crucial to the appropriate diagnosis and management of post-SRS cysts.

Spinal lesions treated with Novalis shaped beam intensity-modulated radiosurgery and stereotactic radiotherapy

2004 ◽  
Vol 101 (Supplement3) ◽  
pp. 435-440 ◽  
Author(s):  
Antonio A. F. De Salles ◽  
Alessandra G. Pedroso ◽  
Paul Medin ◽  
Nzhde Agazaryan ◽  
Timothy Solberg ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Stereotactic Radiotherapy ◽  
Systemic Disease ◽  
Content Type ◽  
Shaped Beam ◽  
Intensity Modulated ◽  
Asymptomatic Patients ◽  
The Mean ◽  
Fine Print

Object. Spinal radiosurgery was implemented to improve quality of life (QOL) in patients with malignancies. It may also be applicable to the treatment of benign lesions. Methods. Between July 2002 and January 2004, 14 patients harboring 22 lesions were treated; 13 received single-dose stereotactic radiosurgery. Six were women. The mean age was 60.2 years (range 48–82 years). There were 11 metastases, two neurofibromas, and one meningioma. Six lesions were cervical, 10 thoracic, and six lumbar. Ten patients suffered pain, three paresthesias, two weakness, and three were asymptomatic. Seven patients underwent spinal surgery, with four receiving instrumentation. Twelve patients underwent conventional irradiation before stereotactic radiosurgery/stereotactic radiotherapy. A mean dose of 12 ± 2.7 Gy (range 8–21 Gy) was prescribed to the 91% isodose line (range 85–97%). The mean tumor volume was 25 ± 27.1 ml (range 0.75–91.8 ml). Treatment was planned using intensity-modulated radiosurgery (IMRS) fields in 15 cases, dynamic arcs in five, and conformal beams in two. The mean follow-up period was 6.1 ± 3.9 months (range 1–16 months). Three patients became pain free and four experienced considerable relief. Weakness improved in the two patients with this preoperative symptom and the asymptomatic patients remained so. Four lesions decreased in size, five remained stable, seven progressed, and six were not followed up (two patients died before follow up). Four patients in all died, three of systemic disease and one of thoracic lesion progression. No complications due to shaped beam and IMRS/intensity-modulated radiotherapy (IMRT) techniques were observed. Conclusions. Shaped beam and IMRS/IMRT involving the Novalis system may delay neurological deterioration, improving QOL. The lack of complication suggests that higher doses can be delivered to improve the control rate in patients with metastases.

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