Surgical neurology international最新文献

{"title":"Central retinal artery occlusion caused by external carotid artery plaque dispersal during carotid artery stenting: A case report.","authors":"Akihiro Kambara, Yuji Kitada, Sou Sawamura, Hiroto Kakita, Fuminori Shimizu, Yoshinori Akiyama, Takashi Yoshida, Nobuyuki Sakai","doi":"10.25259/SNI_431_2025","DOIUrl":"10.25259/SNI_431_2025","url":null,"abstract":"<p><strong>Background: </strong>Central retinal artery occlusion (CRAO) is a serious complication caused by carotid artery plaque dispersal into the ophthalmic artery (OA) during carotid artery stenting (CAS). The purpose of this study is to determine the cause of CRAO despite CAS with both external carotid artery (ECA) and internal carotid artery (ICA) protection.</p><p><strong>Case description: </strong>An 85-year-old man was hospitalized two years ago for cerebral infarction and was diagnosed with left carotid artery stenosis. Carotid ultrasound showed low-intensity plaque, and peak systolic velocity had worsened to 466 cm/s, and magnetic resonance imaging (MRI) also suggested unstable plaque. Angiography showed American Symptomatic Carotid Endarterectomy Trial (NASCET) 90% stenosis. Distal ICA was protected with Filter Wire EZ, and ECA and common carotid artery were protected with Mo.Ma Ultra, and CAS was performed using PRECISE Pro RX. Immediately after treatment, patient complained of visual field loss in the left eye, caused by CRAO.</p><p><strong>Conclusion: </strong>Risk factors for CRAO after CAS include older age, severe stenosis, and the OA fed from the ECA. In this case, ECA was protected with the Mo.Ma Ultra and ICA with the Filter Wire EZ, but the patient developed CRAO. No plaque in filter, no cerebral infarction at all on MRI, likely due to crushing of unstable plaque in the ECA during induction of the Mo.Ma Ultra. It is important to develop a treatment strategy after understanding the characteristics of the plaque and effective embolic protection.</p>","PeriodicalId":94217,"journal":{"name":"Surgical neurology international","volume":"16 ","pages":"352"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12482751/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two illustrative cases of papillary tumor of the pineal region: Clinical presentation, management, and outcomes.","authors":"Callum Martin Allison, Ruchir Bhandari, Joseph Yates, Victoria Reay, Enrico Clarke, Shanmugasundaram Ramkumar, Georges Sinclair","doi":"10.25259/SNI_453_2024","DOIUrl":"10.25259/SNI_453_2024","url":null,"abstract":"<p><strong>Background: </strong>Papillary tumors of the pineal region (PTPR) are rare brain tumors thought to originate from specialized ependymal cell remnants. Their clinical behavior varies, typically manifesting as symptoms of increased intracranial pressure. Due to their rarity, literature on PTPR is limited, complicating the development of evidence-based treatment guidelines. We present two illustrative cases describing their diagnostic workup, management and respective outcomes.</p><p><strong>Case description: </strong>This article presents two cases of PTPR, both diagnosed in adult females with a shared clinical presentation of hydrocephalus-associated symptoms. The first case, a 47-year-old patient, presented in October 2014 with progressive headaches, nausea, and vomiting. The second case, a 40-year-old patient, presented in October 2020 with a two-week history of diplopia, headache, and imbalance. Both patients underwent operative interventions, including biopsy and ventriculostomy, followed by tumor resection. Histological analysis confirmed PTPR in both cases, classified as WHO grade 2-3 and grade 3, respectively. The two cases also received radiation therapy, with case 1 demonstrating longstanding tumor control throughout follow-up, and case 2 experiencing aggressive metastatic activity in spite of repeated onco-surgical treatment.</p><p><strong>Conclusion: </strong>These cases highlight the complex management of PTPR as well as the significance of tailored interventions and long-term surveillance for improved outcomes. Surgical resection, in conjunction with adjuvant or salvage high dose radiation, remains of essence.</p>","PeriodicalId":94217,"journal":{"name":"Surgical neurology international","volume":"16 ","pages":"349"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12482776/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A case of juvenile chronic encapsulated intracerebral hematoma requiring differential diagnosis, successfully treated with craniotomy and hematoma evacuation.","authors":"Yodai Kikuchi, Shogo Dofuku, Rika Nakamura, Ken Kazama, Hideaki Imai","doi":"10.25259/SNI_454_2025","DOIUrl":"10.25259/SNI_454_2025","url":null,"abstract":"<p><strong>Background: </strong>Chronic encapsulated intracerebral hematoma (CEIH) is a rare condition with an unclear pathogenesis. Moreover, no consensus has been established regarding its treatment. Here, we report a case of juvenile subcortical CEIH successfully treated with complete resection, including the capsule.</p><p><strong>Case description: </strong>A 26-year-old woman with no notable medical history had experienced headaches for 2 months and 3 weeks before presentation and underwent extraction of the right third molar 1 week before admission. She presented to our hospital complaining of a headache. Visual field testing revealed left upper quadrantanopia. Head CT showed a 5 cm ring-shaped hyperdense lesion in the right temporal lobe, and cerebral angiography revealed no significant vascular abnormalities. On hospital day 10, she underwent craniotomy and removal of the lesion. Intraoperative findings revealed that the hematoma was encapsulated, and <i>en bloc</i> resection was achieved. Histopathological examination showed fibrous connective tissue with fibroblast proliferation covering a hematoma composed of fibrin and red blood cells, consistent with CEIH. The postoperative course was smooth, no new neurological deficits were observed, and both the headache and visual field disturbance improved. She was discharged home 2 weeks after surgery.</p><p><strong>Conclusion: </strong>Although the pathogenesis of CEIH remains unclear and there is no consensus on treatment, complete resection, including the capsule, was considered the appropriate therapeutic approach in this case, given reports of recurrence and poor outcomes associated with residual capsule tissue or coexistence with cavernous malformations.</p>","PeriodicalId":94217,"journal":{"name":"Surgical neurology international","volume":"16 ","pages":"353"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12482792/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interhemispheric transcallosal approach for hemorrhagic colloid cyst.","authors":"José Orlando De Melo Junior, José Alberto Landeiro","doi":"10.25259/SNI_363_2025","DOIUrl":"10.25259/SNI_363_2025","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;Colloid cysts of the third ventricle are rare representing approximately 2% of all intracranial lesions and 15-20% of all intraventricular lesions, which typically grow in the region of the foramen of Monro. They consist of an outer layer of fibrous tissue and an inner epithelium of mucin-producing cells and many authors have supported an endodermal origin. More than half of patients with colloid cysts of the third ventricle are symptomatic at the time of diagnosis and most of them have symptoms of hydrocephalus, which include headache, nausea, vomiting, blurred vision, gait ataxia, and cognitive decline. Although a major historical concern, sudden deterioration and death is rare and almost all patients with obstructive hydrocephalus experience progressive symptoms for at least several days. However, a rare case of acute intracystic hemorrhage may prevent insidious onset and may be a potential cause of acute clinical deterioration. Surgery for symptomatic colloid cysts remains the standard of care with the primary goal of total resection, including the capsule, with low morbidity. According to a current meta-analysis, microsurgical resection, which include transcortical transventricular and interhemispheric transcallosal approaches, has been associated with a higher resection and lower recurrence rates when compared to the endoscopic approach. Furthermore, intracystic hemorrhage may lead to xanthogranulomatous inflammatory changes within the cyst resulting in focal thickening of the cyst wall and adhesion to surrounding structures, requiring a more technically demanding resection, especially for endoscopic approach.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Case description: &lt;/strong&gt;A 54-year-old male patient presented with subacute symptoms of gait disturbance with poor balance, cognitive impairment, urinary incontinence, and neuropsychiatric symptoms of memory disturbance, paranoid delusions, sexual disinhibition, and labile mood. Neurological examination showed normal level of consciousness, gait apraxia, impaired upper gaze with diplopia, reduced attention, and severe short-term memory impairment. Non-enhanced brain computed tomography scan showed a well-circumscribed hyperdense giant colloid cyst contributing to obstructive hydrocephalus. At this time, he underwent an emergency ventriculoperitoneal shunt. After that, brain magnetic resonance imaging showed a non-enhancing lesion with heterogeneous signal intensity on T2-weighted image and high signal intensity on T1-weighted image, and blooming artifacts on susceptibility-weighted imaging sequence suggestive of associated blood products. A left interhemispheric transcallosal approach was planned. The patient was placed in the supine position, with the head fixed in a three-pin clamp in neutral and flexed positions. A left straight transverse frontal incision crossing the midline was planned and a left parasagittal craniotomy was performed two-thirds anterior and one-third posterior to t","PeriodicalId":94217,"journal":{"name":"Surgical neurology international","volume":"16 ","pages":"364"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12482738/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surgical technique for executing an <i>en bloc</i> resection of a multilevel cervical intramedullary ependymoma: A 2D operative video.","authors":"Daniel Faraj, Michael Galgano","doi":"10.25259/SNI_727_2025","DOIUrl":"https://doi.org/10.25259/SNI_727_2025","url":null,"abstract":"<p><strong>Background: </strong>We present the case of a 39-year-old female with progressive loss of dexterity, gait imbalance, sensory deficits, and neuropathic pain in her bilateral upper and lower extremities. She presented with hyperreflexia, bilateral Hoffmann's sign, and clonus. Magnetic resonance imaging (MRI) demonstrated a mid-cervical intramedullary mass with polar cysts, distal syringomyelia, and brainstem edema. We therefore performed a C2-C7 laminectomy with posterior instrumentation for tumor resection.</p><p><strong>Case description: </strong>We showcase a high-definition operative video with a step-by-step demonstration of this procedure. Key steps are detailed, such as the use of dorsal column mapping to confirm the electrophysiological midline. Crucial surgical maneuvers such as techniques of peeling the tumor away from the spinal cord, use of microcottonoids for dissection, and harnessing the spring action of microdissectors all highlight the importance of mitigating neurological injury and preserving the parenchyma of the spinal cord. Critical considerations regarding bleeding are also highlighted when dealing with ependymomas due to their hypervascular nature. The tumor was resected <i>en bloc</i>, with tumor integrity left intact. Gross total resection was confirmed on postoperative MRI.</p><p><strong>Conclusion: </strong>Postoperatively, the patient experienced transient proprioceptive deficits, which resolved substantially. At 4-year follow-up, she demonstrated neurological improvement, no hardware complications, and no tumor recurrence. This case underscores the utility of <i>en bloc</i> resection for achieving gross total resection of cervical intramedullary ependymomas while optimizing functional outcomes.</p>","PeriodicalId":94217,"journal":{"name":"Surgical neurology international","volume":"16 ","pages":"356"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12482773/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual Woven EndoBridge deployment and neuroendoscopic hematoma evacuation for a ruptured multilobulated middle cerebral artery aneurysm: A case report.","authors":"Shayakhmet Makhanbetkhan, Ichiro Nakahara, Kenichi Haraguchi, Akiko Hasebe, Jun Tanabe, Abzal Zhumabekov, Mynzhylky Berdikhojayev, Fuminari Komatsu, Yashuhiro Yamada, Riki Tanaka, Kento Sasaki, Koutarou Kihara, Tomoka Katayama, Mai Okubo, Yoko Kato","doi":"10.25259/SNI_531_2025","DOIUrl":"10.25259/SNI_531_2025","url":null,"abstract":"<p><strong>Background: </strong>Ruptured wide-necked or multi-lobulated intracranial aneurysms pose a challenge in the acute phase of subarachnoid hemorrhage (SAH), in which antiplatelet therapy is generally contraindicated. The Woven EndoBridge (WEB) device enables intrasaccular occlusion without requiring antiplatelet agents. However, the treatment of multilobulated aneurysms in this setting remains technically demanding.</p><p><strong>Case description: </strong>An octogenarian patient presented with a poor-grade SAH due to a ruptured multilobulated aneurysm of the right middle cerebral artery (MCA) accompanied by intracerebral and subdural hematomas. Emergency endovascular treatment was performed using dual-horizontal WEB devices, each deployed in a separate lobule. Antiplatelet therapy was not administered. Subsequently, a neuroendoscopic hematoma evacuation was performed. Postoperative imaging confirmed complete exclusion of the aneurysm and resolution of the hematoma. The patient showed neurological improvement and was transferred for rehabilitation with acceptable clinical outcomes.</p><p><strong>Conclusion: </strong>This case illustrates the feasibility of combining dual WEB deployment with subsequent neuroendoscopic hematoma evacuation during the acute phase of SAH. This strategy may be a viable treatment option for ruptured multilobulated MCA aneurysms in older adults when conventional approaches are unsuitable.</p>","PeriodicalId":94217,"journal":{"name":"Surgical neurology international","volume":"16 ","pages":"351"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12482791/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Posterior-only total <i>en bloc</i> spondylectomy of L4 for solitary bladder cancer metastasis - An illustrative case.","authors":"Sadegh Bagherzadeh, Faramarz Roohollahi, Srujan Kopparapu, Cesar Manuel Carballo Cuello, Mohsen Rostami, Mark Greenberg, Puya Alikhani","doi":"10.25259/SNI_772_2025","DOIUrl":"10.25259/SNI_772_2025","url":null,"abstract":"<p><strong>Background: </strong>Total <i>en bloc</i> spondylectomy (TES) is a well-established surgical technique for complete resection of vertebral tumors. While traditionally performed through combined anterior-posterior approaches, a posterior-only approach may reduce operative time, blood loss, and morbidity in selected patients.</p><p><strong>Case description: </strong>We report a 57-year-old male with a solitary L4 vertebral metastasis from previously treated bladder cancer, presenting with low back pain and neurogenic claudication. Imaging confirmed a hypermetabolic lesion isolated to L4 without systemic spread. A two-stage posterior-only TES was performed using careful gauze dissection for anterior vertebral release and <i>en bloc</i> removal. The patient was discharged neurologically intact but experienced two episodes of proximal junctional failure at 4 and 7 months, ultimately requiring extension of fusion to T4. At 14-month follow-up, he remained ambulatory without recurrent failure.</p><p><strong>Conclusion: </strong>Posterior-only TES at L4 is feasible in carefully selected patients. Success requires meticulous surgical planning, multidisciplinary coordination, and thorough patient counseling regarding the risk of mechanical complications and the potential need for revision surgery.</p>","PeriodicalId":94217,"journal":{"name":"Surgical neurology international","volume":"16 ","pages":"360"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12482703/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silent growth, striking impact: A rare case of intracranial chondroma and review of literature.","authors":"Noman Ahmed, Ahmad Hassan, Hafiza Fatima Aziz, S Ather Enam","doi":"10.25259/SNI_319_2025","DOIUrl":"10.25259/SNI_319_2025","url":null,"abstract":"<p><strong>Background: </strong>Chondromas are benign tumors accounting for 0.2-0.3% of all intracranial tumors. They are composed of embryonic cartilaginous material and mostly occur in extradural locations or less frequently in paranasal sinuses, choroid plexus, and dura. In this report, we present a case where a young patient presented with bifrontal parafalcine chondroma.</p><p><strong>Case description: </strong>A 32-year-old female presented with headache for the past 2 years along with blurry vision and forgetfulness for the past 2 months. Magnetic resonance imaging (MRI) brain showed a bifrontal mixed-intensity lesion located in the parasagittal region on T2-weighted sequence with areas of hypo and hyperintensities. The lesion showed areas of heterogeneous contrast enhancement. She underwent neuronavigation-guided bifrontal craniotomy and maximum safe resection of the lesion. Postoperative MRI showed near total resection of the lesion along with development of acute infarcts in bilateral frontotemporal lesion. Her postoperative course was complicated by anterior cerebral artery territory infarcts, contributing to low Glasgow Coma Scale and left-sided weakness. She experienced recurrent seizures and respiratory complications, necessitating elective tracheostomy. After a 25-day hospital stay, she was discharged. At 4-month follow-up, she showed significant neurological improvement, including resolution of lower-limb weakness and tracheostomy removal. However, MRI suggested tumor recurrence, which remained stable at 6- and 9-month follow-ups.</p><p><strong>Conclusion: </strong>Intracranial chondromas are rare neoplasms of the skull mostly presenting in the third decade of life. They are slow growing and can gain enormous size leading to chronic symptoms, particularly long-standing headaches. There is high variability in the location of these tumors, and our analysis suggests that more than 30% of the tumors arise from convexity. Chondromas are a rare entity which makes it difficult to distinguish from craniopharyngioma, pituitary adenoma, and meningioma, so these should be considered as important differentials. Our literature review showed 73.3% of the chondromas appeared hypointense on T1 sequence and 46.7% were found to be heterogenous on T2 sequence which aligns with previous studies. Gross total resection is the gold standard treatment while the role of radio and chemotherapy remains controversial.</p>","PeriodicalId":94217,"journal":{"name":"Surgical neurology international","volume":"16 ","pages":"350"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12482709/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early recurrence of olfactory neuroblastoma: A case report and literature review.","authors":"Alex Roman, Moisés Augusto de Araújo, Rudolfh Batista Arend, Bruno Zilli Peroni, Daniel Felipe Savaris, Renata Dos Santos Rabello, Victor Luiz Ferreira Kauer, Filipe Virgilio Ribeiro","doi":"10.25259/SNI_441_2025","DOIUrl":"10.25259/SNI_441_2025","url":null,"abstract":"<p><strong>Background: </strong>Olfactory neuroblastoma (ONB) is a rare malignant tumor of the sinonasal cavity, often presenting with nonspecific symptoms and requiring complex multidisciplinary management.</p><p><strong>Case description: </strong>A 55-year-old male developed progressive anosmia and recurrent epistaxis. Imaging revealed an invasive lesion involving the nasal cavity, paranasal sinuses, and intracranial space, along with cervical lymph node metastases. Diagnosis was confirmed histologically. Patient underwent craniofacial approach, cervical lymphadenectomy, and adjuvant radiotherapy. Despite aggressive treatment, early recurrence occurred in both nasal and intracranial compartments. With curative options exhausted, the patient was transitioned to palliative care.</p><p><strong>Conclusion: </strong>ONB has a high risk of recurrence, typically occurring years after initial treatment. However, early recurrence, as seen in this case, is rare and associated with aggressive tumor features such as high-grade histology and incomplete resection. These cases present significant therapeutic challenges and underscore the importance of close surveillance and further research into optimal management strategies for early recurrent ONB.</p>","PeriodicalId":94217,"journal":{"name":"Surgical neurology international","volume":"16 ","pages":"358"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12482727/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clear cell meningioma: Experience at a medical center.","authors":"Jorge Luis Olivares Peña, Hector Ricardo Lara Torres, Jorge Luis Olivares Camacho, Jorge Arturo Santos Franco, María Del Pilar Cruz Dominguez, Fiacro Jimenez-Ponce, Gabriela Martínez Díaz, Jesús Ricardo Cazadero Márquez","doi":"10.25259/SNI_151_2025","DOIUrl":"10.25259/SNI_151_2025","url":null,"abstract":"<p><strong>Background: </strong>Clear cell meningiomas (CCMs) are a rare variant, represent approximately 1% of all craniospinal meningiomas reported worldwide, and typically appear in young and adult individuals, more frequently in women. Although they are classified by the World Health Organization as grade 2, they are meningiomas that often behave aggressively and have a high recurrence rate.</p><p><strong>Case description: </strong>337 records of patients with a histopathological diagnosis of intracranial meningiomas were retrospectively analyzed between January 2017 and December 2022. Three CCM cases are presented as examples. From the 337 records analyzed, 10 were CCM-related (2.96%). This paper describes three cases of meningiomas operated on at La Raza National Medical Center Specialty Hospital (HECMNR) (HECMNR, in Spanish), which belongs to the Mexican Institute of Social Security. The first case was operated with a Simpson grade I resection of the lesion and then developed other two recurrence events, which required another two interventions with Simpson II and III resections, respectively, despite oncological therapy. The second instance utilized a Simpson III resection and was promptly subjected to radiotherapy and currently developed tumoral recurrence that will soon require resection. The third case used a Simpson V resection, since the severe cerebral edema prevented a higher degree of resection.</p><p><strong>Conclusion: </strong>CCMs have a high risk of recurrence, making reintervention necessary, and therefore, cranial deformity and severe functional and neurological complications may follow, which explains the difficulty in managing this pathology.</p>","PeriodicalId":94217,"journal":{"name":"Surgical neurology international","volume":"16 ","pages":"354"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12482790/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145208732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}