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Akgun B, Aytekın A, Balta H, Yıldırım G. A Large Intracranial Cystic Cavernous Angioma. Neurol India 2024; 72:429-430. [PMID: 38691494 DOI: 10.4103/ni.neurol-india-d-23-00268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 06/02/2023] [Indexed: 05/03/2024]
Affiliation(s)
- Bekir Akgun
- Department of Neurosurgery, Firat University Hospital, Elazig, Turkıye
| | - Akin Aytekın
- Department of Neurosurgery, Firat University Hospital, Elazig, Turkıye
| | - Hilal Balta
- Department of Clinical Pathology, Firat University Hospital, Elazig, Turkıye
| | - Gokhan Yıldırım
- Department of Neurosurgery, Firat University Hospital, Elazig, Turkıye
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Shroff K, Deopujari C, Karmarkar V, Mohanty C. Cystic Cerebral Cavernous Malformations: Report of Five Cases and a Review of Literature. Asian J Neurosurg 2023; 18:272-292. [PMID: 37397055 PMCID: PMC10310445 DOI: 10.1055/s-0043-1768577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023] Open
Abstract
Introduction Cerebral cavernous malformations (CCMs) account for about 5 to 13% of intracranial vascular malformations. Cystic cerebral cavernous malformations (cCCMs) are a rare morphological variant and can cause diagnostic and therapeutic dilemmas. We describe our five such cases and review the existing literature on this entity. Methods A search of the PubMed database for cCCMs was done, and all articles in English emphasizing the reporting of cCCMs were selected. A total of 42 publications describing 52 cases of cCCMs were selected for analysis. Epidemiological data, clinical presentation, imaging features, the extent of resection, and outcome were analyzed. Radiation-induced cCCMs were excluded. We have also described five of our cases of cCCMs and reported our experience. Results The median age at presentation was 29.5 years. Twenty-nine patients had supratentorial lesions, 21 had infratentorial lesions, and 2 had lesions in both compartments. Among our four patients, three had infratentorial lesions, whereas one had a supratentorial lesion. Multiple lesions were seen in four patients. A majority (39) had symptoms of mass effect (75%), and 34 (65.38%) had raised intracranial pressure (ICP), whereas only 11 (21.15%) had seizures. Among our four operated patients, all of them had symptoms of mass effect, and two of them also had features of raised ICP. The extent of resection was gross total in 36 (69.23%), subtotal in 2 (3.85%), and not reported in 14 (26.93%). All four of our operated patients underwent gross total resection, but two of them underwent a second surgery. Of the 48 patients in whom the surgical outcome was reported, 38 improved (73.08%). One showed a transient worsening followed by improvement, one developed a worsening of the pre-existing focal neurological deficit (FND), two developed a new FND, and 5 had no improvement in their FNDs. Death occurred in one patient. All four of our operated patients improved after surgery, although three of them showed a transient worsening of FNDs. One patient is under observation. Conclusion cCCMs are rare morphological variants and can cause considerable diagnostic and therapeutic dilemmas. They should be considered in the differential diagnosis of any atypical cystic intracranial mass lesion. Complete excision is curative, and the outcome is generally favorable; although transient deficits may be seen.
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Affiliation(s)
- Krishna Shroff
- Department of Neurosurgical Oncology, Tata Memorial Centre, Parel, Mumbai, Maharashtra, India
| | - Chandrashekhar Deopujari
- Department of Neurosurgery, Bombay Hospital Institute of Medical Sciences, Mumbai, Maharashtra, India
| | - Vikram Karmarkar
- Department of Neurosurgery, Bombay Hospital Institute of Medical Sciences, Mumbai, Maharashtra, India
| | - Chandan Mohanty
- Department of Neurosurgery, Bombay Hospital Institute of Medical Sciences, Mumbai, Maharashtra, India
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Pathological Changes in Surgically Resected Cystic Cerebral Cavernous Malformation 13 Years After Radiosurgery: Case Report and Review of the Literature. World Neurosurg 2020; 143:392-397. [PMID: 32679360 DOI: 10.1016/j.wneu.2020.07.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/05/2020] [Accepted: 07/07/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND Stereotactic radiosurgery (SRS) as a treatment for cerebral cavernous malformation (CCM) has been controversial, but there are few pathological reports showing its long-term therapeutic effect, and literature reporting the CCM cyst formation after SRS is also rare. CASE DESCRIPTION We present a 30-year-old woman with a ruptured right parietal CCM treated with SRS 13 years ago. The post-SRS imaging follow-up revealed CCM rehemorrhage and cyst formation. Surgical resection was performed, and a subsequent pathological examination revealed that the CCM still had some incomplete occluded vessels and a large number of newly formed capillaries, and hemorrhagic band and hemosiderin were seen around the nodule. CONCLUSIONS Recurrent hemorrhage after SRS for CCM could be related to incomplete occluded vessels and newly formed capillaries. Repeated hemorrhage from CCM newly formed capillaries into the small cavity increased the osmotic pressure, resulting in fluid entering the cavity and cyst enlargement.
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Multiple Large-Size Cystic Cerebral Cavernomas. World Neurosurg 2020; 139:410-414. [PMID: 32376377 DOI: 10.1016/j.wneu.2020.04.189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND Cerebral cavernomas are vascular malformations characterized by networks of abnormally dilated capillaries. They typically present as nodules with mixed signal intensity and a surrounding hemosiderin rim on magnetic resonance imaging. They may occur as multiple lesions in the autosomal-dominant familial form. In rare cases, cavernomas may form cystic masses, mimicking other pathologies. CASE DESCRIPTION A 35-year-old man presented with recurrent seizures, aphasia, and gait disturbance with onset at age 14 years. He had previously undergone surgical drainage of multiple cysts across the brain with suspected parasitic infection. On magnetic resonance imaging, 22 cystic lesions were seen across the brain. A large cyst was located in the midline cerebellum, compressing the fourth ventricle. Occipital craniotomy and transvermian dissection allowed total resection of the cyst along with its wall. The postoperative course was uneventful and symptoms progressively improved. Histological analysis revealed cavernoma. Three more surgeries were performed for removal of large supratentorial cavernomas. CONCLUSIONS In patients with cystic lesions of the brain, the neurosurgeon should consider the possibility of cavernoma. Total excision along with the cyst wall is crucial for timely diagnosis and therapy.
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Yeo JJY, Chang KTE, Ng LP, Seow WT, Low DCY, Low SYY. Cystic Cavernoma of Fourth Ventricle in Pediatric Patient. World Neurosurg 2017; 111:255-257. [PMID: 29288111 DOI: 10.1016/j.wneu.2017.12.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 12/14/2017] [Accepted: 12/15/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Cystic cerebral cavernomas belong to a rare subset of cavernous malformations in the brain. At present, there is limited information with regard to the demographics and etiology of this condition. CASE DESCRIPTION The authors present a case of a previously well 13-year-old male who presented with symptoms secondary to a cystic lesion of the fourth ventricle compressing on his brainstem. He underwent stereotactic aspiration of the cystic lesion and insertion of an Ommaya reservoir in the same setting. Postoperatively, his symptoms improved. The cyst fluid did not yield any positive cytology or culture results. A repeat MRI brain did not demonstrate evidence of any underlying lesion. However, the patient was readmitted for hemorrhage into the region of his previous fourth ventricular lesion. Surgical evacuation of the haematoma was performed and intraoperative tissue was sent for pathological interrogation. The final histology reported a cavernoma. CONCLUSIONS This is an unusual presentation of an intracranial vascular anomaly in a pediatric patient. Key features of the case include the diagnostic dilemma and management challenges faced from a neurosurgical perspective.
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Affiliation(s)
- Jared J Y Yeo
- National Neuroscience Institute, Jalan Tan Tock Seng, Singapore, Singapore
| | - Kenneth T E Chang
- National Neuroscience Institute, Jalan Tan Tock Seng, Singapore, Singapore
| | - Lee Ping Ng
- National Neuroscience Institute, Jalan Tan Tock Seng, Singapore, Singapore
| | - Wan Tew Seow
- National Neuroscience Institute, Jalan Tan Tock Seng, Singapore, Singapore
| | - David C Y Low
- National Neuroscience Institute, Jalan Tan Tock Seng, Singapore, Singapore
| | - Sharon Y Y Low
- National Neuroscience Institute, Jalan Tan Tock Seng, Singapore, Singapore.
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Komura M, Kodaka T, Terawaki K, Yonekawa H, Ikebukuro K, Komuro H, Kin R, Yamada T. A case of cystic hemangioma in mesentery. JOURNAL OF PEDIATRIC SURGERY CASE REPORTS 2017. [DOI: 10.1016/j.epsc.2017.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Wu H, Yu T, Wang S, Zhao J, Zhao Y. Surgical Treatment of Cerebellar Cavernous Malformations: A Single-Center Experience with 58 Cases. World Neurosurg 2015; 84:1103-11. [PMID: 26070634 DOI: 10.1016/j.wneu.2015.05.062] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 05/25/2015] [Accepted: 05/28/2015] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The goal of this study was to discuss the surgical indications, surgical approaches, and prognostic factors of cerebellar cavernous malformation (CM). METHODS We retrospectively reviewed the presentation, surgery, and outcome of 58 consecutive patients who underwent resection of cerebellar CMs between 2009 and 2013 in our center. RESULTS The study population consisted of 31 males and 27 females, mean age 39.9 years. Fifty-eight patients experienced 67 symptomatic hemorrhages. The median diameter of all lesions was 2.2 ± 0.9 cm (range, 0.8-4.8 cm). The locations were classified into 3 groups: group 1, cerebellar hemisphere (17 cases, 29.3%); group 2, vermis (18 cases, 31.0%); and group 3, cerebellar peduncle (23 cases, 39.7%). Complete resection was achieved in all patients without surgical mortality. Postoperatively, 11 patients developed new surgical complications, including facial paralysis in 6 patients, ataxia in 2 patients, dizziness in 2 patients, and decrease in facial sensation in 1 patient. The mean modified Rankin Scale (mRS) at final follow-up was significantly improved compared with the preoperative score (0.5 ± 0.5 vs. 1.4 ± 0.7, P = 0.035). The symptoms and neurologic deficits improved in most patients. The lesion location was the only factor that predicted a worse outcome, and the mRS was significantly lower in group 3 than groups 1 and group 2 (P = 0.019). CONCLUSIONS Patients with cerebellar CMs usually achieve favorable outcomes via surgery. Cerebellar peduncle CMs cause significantly more neurologic deficits than other locations. A reasonable surgical approach and meticulous manipulation are necessary to prevent impairment of neurologic function.
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Affiliation(s)
- Hongji Wu
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, People's Republic of China; Department of Neurosurgery, Baoding No. 1 Central Hospital, Hebei, People's Republic of China
| | - Tao Yu
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Shuo Wang
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jizong Zhao
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yuanli Zhao
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, People's Republic of China.
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Pathological characteristics of cyst formation following gamma knife surgery for arteriovenous malformation. Acta Neurochir (Wien) 2015; 157:293-8. [PMID: 25503297 DOI: 10.1007/s00701-014-2298-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 11/28/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND The pathological characteristics of cyst development after gamma knife surgery (GKS) for arteriovenous malformation (AVM) were analysed. METHOD Sixteen male and 12 female patients aged 17-67 years (mean 31.3 years) were retrospectively identified among 868 patients who underwent GKS for AVM at our hospital. The pathological characteristics of the reddish nodular lesion and chronic encapsulated expanding haematoma associated with cyst following GKS for AVM were examined. RESULTS Cyst was associated with chronic encapsulated expanding haematoma in 13, and with nodular lesion in 12 patients. The nidus volume at GKS was 0.1-36 ml (median 6.0 ml), and the prescription dose at the nidus margin was 18-25 Gy (median 20 Gy). Cyst formation was detected from 1.1 to 16 years (mean 7.3 years) after GKS. Seven of the 12 patients with nodular lesion underwent surgery. Ten of the 13 patients with expanding haematoma underwent surgical removal of expanding haematoma. Histological examination was possible in 17 cases. Dilated capillary vessels with wall damage such as hyalinisation and fibrinoid necrosis, marked protein exudation and haemorrhage were the most common findings. Brain parenchyma was observed among the dilated vessels in some cases. Structureless necrotic tissue was not evident. CONCLUSIONS The present study suggests that enhanced nodular lesion on magnetic resonance imaging and chronic encapsulated expanding haematoma associated with cyst may have common aetiopathology caused by late radiation effects, mainly consisting of dilated capillary vessels with wall damage. Massive protein exudation from such damaged capillary vessels is important in cyst development.
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Kim WH, Lim DJ, Choi JI, Ha SK, Kim SD, Kim SH. Unusual Presentation of Cerebral Cavernous Malformation. J Cerebrovasc Endovasc Neurosurg 2015; 17:257-62. [PMID: 26523262 PMCID: PMC4626352 DOI: 10.7461/jcen.2015.17.3.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 08/02/2015] [Accepted: 08/23/2015] [Indexed: 11/23/2022] Open
Abstract
Cerebral cavernous malformations (CMs) are vascular malformations of the central nervous system, which can be detected in the absence of any clinical symptoms. Nodules and cysts with mixed signal intensity and a peripheral hemosiderin rim are considered brain magnetic resonance imaging (MRI) findings typical of CMs. A 48-year-old man was admitted to our hospital because of abnormal MRI findings without significant neurological symptoms. A cyst with an internal fluid-fluid level was found in the left basal ganglia on the initial brain MRI. We decided to observe the natural course of the asymptomatic lesion with serial MRI follow-up. On MRI at the 5-month follow-up, the cystic mass was enlarged and showed findings consistent with those of cystic CM. Surgical resection was performed and the pathological diagnosis was CM. Our experience suggests that the initial presentation of a CM can be a pure cyst and neurosurgeons should consider the likelihood of CMs in cases of cystic cerebral lesions with intracystic hemorrhage.
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Affiliation(s)
- Won-Hyung Kim
- Department of Neurosurgery, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Dong-Jun Lim
- Department of Neurosurgery, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Jong-Il Choi
- Department of Neurosurgery, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Sung-Kon Ha
- Department of Neurosurgery, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Sang-Dae Kim
- Department of Neurosurgery, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Se-Hoon Kim
- Department of Neurosurgery, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
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Intraosseous cystic cavernous angioma with occipital skull osteolysis. INTERDISCIPLINARY NEUROSURGERY 2014. [DOI: 10.1016/j.inat.2014.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Kim IC, Kwon KY, Rhee JJ, Lee JW, Hur JW, Lee HK. Giant cystic cerebral cavernous malformation with multiple calcification - case report. J Cerebrovasc Endovasc Neurosurg 2013; 15:255-9. [PMID: 24167810 PMCID: PMC3804668 DOI: 10.7461/jcen.2013.15.3.255] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 07/16/2013] [Accepted: 08/22/2013] [Indexed: 11/23/2022] Open
Abstract
Cerebral cavernous malformation with giant cysts is rare and literature descriptions of its clinical features are few. In this case study, the authors describe the clinical symptoms, radiological findings, and pathological diagnosis of cerebral cavernous malformations with giant cysts, reviewing the relevant literature to clearly differentiate this from other disease entities. The authors present a case of a 19-year-old male with a giant cystic cavernous malformation, who was referred to the division of neurosurgery due to right sided motor weakness (grade II/II). Imaging revealed a large homogenous cystic mass, 7.2×4.6×6 cm in size, in the left fronto-parietal lobe and basal ganglia. The mass had an intra-cystic lesion, abutting the basal portion of the mass. The initial diagnosis considered this mass a glioma or infection. A left frontal craniotomy was performed, followed by a transcortical approach to resect the mass. Total removal was accomplished without post-operative complications. An open biopsy and a histopathological exam diagnosed the mass as a giant cystic cavernous malformation. Imaging appearances of giant cavernous malformations may vary. The clinical features, radiological features, and management of giant cavernous malformations are described based on pertinent literature review.
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Affiliation(s)
- Il-Chun Kim
- Department of Neurosurgery, Cheongju St. Mary's hospital, Cheongju, Korea
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Ghanta RK, Tangella P, Koti K, Dandamudi S. A rare case of an extra-axial cavernous angioma in the cerebellopontine angle. J Neurosci Rural Pract 2013; 4:210-2. [PMID: 23914109 PMCID: PMC3724311 DOI: 10.4103/0976-3147.112772] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Intracranial extra-axial cavernous angiomas are rare lesions. We report a rare case of extra-axial cavernous angioma in the cerebellopontine angle (CPA) in a 50-year-old male, who presented with lower cranial nerve palsy and gait ataxia. Computed tomography (CT) scan of the brain showed a hyperdense lesion in the left cerebellopontine angle. The lesion was totally excised by the retrosigmoid approach and a pathological examination confirmed the lesion to be a cavernous angioma. Following surgery, the lower cranial nerve palsy recovered significantly.
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Affiliation(s)
- Rajesh K Ghanta
- Department of Neurosurgery, Suraksha Hospital, Vijayawada, Andhra Pradesh, India
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Giant cerebellar cavernous malformation in 4-month-old boy. Case report and review of the literature. Neurol Neurochir Pol 2013; 47:596-600. [DOI: 10.5114/ninp.2013.39078] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Nair SR, Rahmat K, Alhabshi SMI, Ramli N, Seong MK, Waran V. Mural nodules in multiple cavernous haemangioma. Clin Neurol Neurosurg 2012; 115:1150-3. [PMID: 23031746 DOI: 10.1016/j.clineuro.2012.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2012] [Revised: 08/30/2012] [Accepted: 09/09/2012] [Indexed: 11/20/2022]
MESH Headings
- Accidental Falls
- Adult
- Brain Neoplasms/complications
- Brain Neoplasms/pathology
- Brain Neoplasms/surgery
- Brain Stem Neoplasms/surgery
- Central Nervous System Cysts/pathology
- Central Nervous System Cysts/surgery
- Decompression, Surgical
- Drainage
- Female
- Gait Disorders, Neurologic/etiology
- Hemangioma, Cavernous, Central Nervous System/complications
- Hemangioma, Cavernous, Central Nervous System/pathology
- Hemangioma, Cavernous, Central Nervous System/surgery
- Humans
- Hydrocephalus/complications
- Image-Guided Biopsy
- Magnetic Resonance Imaging
- Neurosurgical Procedures
- Surgery, Computer-Assisted
- Tomography, X-Ray Computed
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Affiliation(s)
- Shalini Rajandran Nair
- Department of Biomedical Imaging, University Malaya Research Imaging Centre, University of Malaya, Malaysia
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Wu B, Liu W, Zhao Y. Coexistence of Extra-Axial Cavernous Malformation and Cerebellar Developmental Venous Anomaly in the Cerebellopontine Angle. World Neurosurg 2012; 78:375.e5-9. [DOI: 10.1016/j.wneu.2011.12.087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2011] [Revised: 10/06/2011] [Accepted: 12/20/2011] [Indexed: 10/14/2022]
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Huang H, Xu K, Qu L, Li Y, Yu J. Cystic cavernous malformation of the cerebellopontine angle: case report and literature review. World J Surg Oncol 2011; 9:36. [PMID: 21429201 PMCID: PMC3070677 DOI: 10.1186/1477-7819-9-36] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Accepted: 03/23/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cavernous malformations (CMs) in the cerebellopontine angle (CPA) are rare, and most of such CMs reported to date are solid and extend from the internal auditory canal into the CPA. In contrast, cystic CMs that arise in the CPA and do not involve the internal auditory canal and dura of the skull base are extremely rare. CASE PRESENTATION A 50-year-old man presented with vertigo and progressive hearing loss in the right ear. MRI examination revealed a lesion in the CPA with solid and cystic components. Surgery was performed. Well-circumscribed adhesion to cranial nerves, the cerebellum, or the brain stem was noted during surgery. The lesion was totally resected. Pathological examination suggested the lesion to be a CM. At 1-year follow-up, the symptoms at presentation had resolved and no complications had occurred. CONCLUSION Although cystic CMs of the CPA have no established imaging features, a diagnosis of CMs may be suspected when a cystic lesion is present in the CPA and does not involve internal acoustic meatus or dura mater of the skull base. Skillful microsurgical techniques and monitoring of cranial nerves will secure good outcomes for patients with cystic CMs in the CPA.
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Affiliation(s)
- Haiyan Huang
- Department of Neurosurgery, The First Hospital of Jilin University, 71 Xinmin Avenue, Changchun 130021, PR China
| | - Kan Xu
- Department of Neurosurgery, The First Hospital of Jilin University, 71 Xinmin Avenue, Changchun 130021, PR China
| | - Limei Qu
- Department of Pathology, The First Hospital of Jilin University, 71 Xinmin Avenue, Changchun 130021, PR China
| | - Ye Li
- Department of Radiology, The First Hospital of Jilin University, 71 Xinmin Avenue, Changchun 130021, PR China
| | - Jinlu Yu
- Department of Neurosurgery, The First Hospital of Jilin University, 71 Xinmin Avenue, Changchun 130021, PR China
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