scholarly journals Fourth Ventricular Schwannoma: Identical Clinicopathologic Features as Schwann Cell-Derived Schwannoma with Unique Etiopathologic Origins

2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Tiffany R. Hodges ◽  
Isaac O. Karikari ◽  
Shahid M. Nimjee ◽  
June Tibaleka ◽  
Thomas J. Cummings ◽  
...  
Keyword(s):  
Natural History ◽  
Histopathological Examination ◽  
Resonance Imaging ◽  
Who Grade ◽  
Suboccipital Craniotomy ◽  
Nerve Sheath ◽  
History Of ◽  
Intraventricular Tumors ◽  
Memory Disturbance ◽  
Magnetic Resonance Imaging Mri

Background. To our knowledge, this is the sixth reported case in the literature of fourth ventricular schwannoma. The etiology and natural history of intraventricular schwannomas is not well understood. A thorough review of potential etiopathogenic mechanisms is provided in this case report.Case Description. A 69-year-old man presented with an incidentally found fourth ventricular tumor during an evaluation for generalized weakness, gait instability, and memory disturbance. Magnetic resonance imaging (MRI) revealed a heterogeneously enhancing lesion in the fourth ventricle. A suboccipital craniotomy was performed to resect the lesion. Histopathological examination confirmed the diagnosis of schwannoma (WHO grade I).Conclusions. Schwannomas should be considered in the differential diagnosis of intraventricular tumors. Although the embryologic origins may be different from nerve sheath-derived schwannomas, the histologic, clinical, and natural history appear identical and thus should be managed similarly.

scholarly journals Intracranial subdural osteoma

2020 ◽  
Vol 18 ◽  
pp. 205873922092685
Author(s):  
Yunna Yang ◽  
Zheng Gu ◽  
Yinglun Song
Keyword(s):  
Dura Mater ◽  
Histopathological Examination ◽  
Surgical Excision ◽  
Benign Neoplasms ◽  
Resonance Imaging ◽  
Inner Surface ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
T1 Hyperintensity ◽  
The Right

Subdural osteomas are extremely rare benign neoplasms. Here, we report the case of a 35-year-old female patient with a right frontal and parietal subdural osteoma. The patient presented with a 2-year history of intermittent headache and fatigue. Computerized tomography (CT) scan showed a high-density lesion attached to the inner surface of the right frontal and parietal skull. Magnetic resonance imaging (MRI) demonstrated T1 hyperintensity and T2 hypointensity of the lesion. Intraoperatively, the hard mass was located in subdural space and attached to the dura mater. Histopathological examination revealed lamellated bony trabeculae lined by osteoblasts and the intertrabecular marrow spaces occupied by adipose tissue. The patient underwent neurosurgical resection and recovered without complication. Surgical excision is recommended to extract the symptomatic lesions with overlying dura mater.

scholarly journals A CASE OF RARE LARYNGEAL NEUROGENIC TUMOR

2019 ◽  
Vol 72 (7) ◽  
pp. 1413-1414
Author(s):  
Jacek Czubak ◽  
Marcin Frączek ◽  
Krzysztof Morawski
Keyword(s):  
Histopathological Examination ◽  
Specific Treatment ◽  
Resonance Imaging ◽  
Imaging Tool ◽  
History Of ◽  
Submucosal Mass ◽  
Magnetic Resonance Imaging Mri ◽  
X 24 ◽  
Rare Benign Tumour ◽  
Tomography Scan

Laryngeal schwannoma is a rare benign tumour of the larynx. Schwannomas derive from the Schwann cells. Magnetic resonance imaging (MRI) is the best imaging tool for suggesting the diagnosis. We report case of laryngeal schwannoma. The case was a 61-year-old man with a 1-year history of dysphonia and stridor. Laryngoscopy revealed a submucosal mass of the glottic area. A computed tomography scan of the larynx showed an 26(CC) x 18 (TR) x 24 (AP)mm expansile mass in the glottic area. Histopathological examination diagnosed a schwannoma of the larynx. External surgeries were successfully performed. Diagnosis and specific treatment are discussed.

scholarly journals Symptomatic spinal cord metastasis of glioblastoma multiforme

2018 ◽  
Vol 23 (3) ◽  
pp. 234-237
Author(s):  
Emerson Magno F. De Andrade ◽  
Sérgio De Freitas ◽  
Antônio Carlos Montanaro
Keyword(s):  
Spinal Cord ◽  
Glioblastoma Multiforme ◽  
Histopathological Examination ◽  
Spinal Metastasis ◽  
Previous History ◽  
Leg Pain ◽  
Resonance Imaging ◽  
History Of ◽  
Spinal Cord Metastasis ◽  
Magnetic Resonance Imaging Mri

Symptomatic spinal cord metastasis from glioblastoma multiforme (GBM) has rarely been reported in the literature. We report the case of a 27-year-old man that presented with back and bilateral leg pain nine months after the primarydiagnosis of intracranial GBM. A magnetic resonance imaging (MRI) of the lumbar spine showed a L1-L2 tumor that was removed successfully and histopathological examination was consistent with GBM metastasis. Spinal metastasis should be investigated and included in the differential diagnosis if a patient with a previous history of intracranial GBM presentswith spinal symptoms. 

Magnetic Resonance Imaging of Pseudo-impingement of Rotator Cuff with Strength Training

2019 ◽  
Vol 1 ◽  
pp. 2-6
Author(s):  
Asad Naqvi ◽  
Timothy Ariyanayagam ◽  
Mir Akber Ali ◽  
Akhila Rachakonda ◽  
Hema N. Choudur
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Rotator Cuff ◽  
Strength Training ◽  
Radiology Department ◽  
Resonance Imaging ◽  
Subacromial Space ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
Training Exercises

Objective: The objective of this study was to outline a novel unique concept of secondary impingement of the muscles, myotendons, and tendons of the rotator cuff from hypertrophy as a result of strength training exercises. Methods: In this retrospective observational study, 58 patients were referred for an magnetic resonance imaging (MRI) by the orthopedic surgeon to the radiology department over a period of 1½ years. All patients gave a history of strength training exercises and presented with clinical features of rotator cuff impingement. Results: We identified features of hypertrophy of rotator cuff muscles, myotendons, and tendons in 12 of these 58 patients. This was the only abnormality on MRI. The hypertrophy of rotator cuff muscles and tendon bulk completely filling the subacromial space to the point of overfilling and resulting in secondary compressive features. Conclusion: Rotator cuff impingement is a common phenomenon that can occur with various inlet and outlet pathological conditions. However, rotator cuff impingement may also result from muscle and tendon hypertrophy from strength training regimens. Hypertrophy of the rotator cuff can result in overfilling of the subacromial space, leading to secondary impingement, which we have termed as “pseudo-impingement.”

Computed Tomography and Magnetic Resonance Imaging-aided Diagnosis of Primary Essential Cutis Verticis Gyrata: A Case Report with 5-year Follow-up and Review of the Literature

2019 ◽  
Vol 15 (9) ◽  
pp. 906-910
Author(s):  
Hongzhang Zhu ◽  
Shi-Ting Feng ◽  
Xingqi Zhang ◽  
Zunfu Ke ◽  
Ruixi Zeng ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Three Dimensional ◽  
Stable Condition ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Cutis Verticis Gyrata ◽  
Essential Form ◽  
History Of ◽  
Magnetic Resonance Imaging Mri

Background: Cutis Verticis Gyrata (CVG) is a rare skin disease caused by overgrowth of the scalp, presenting as cerebriform folds and wrinkles. CVG can be classified into two forms: primary (essential and non-essential) and secondary. The primary non-essential form is often associated with neurological and ophthalmological abnormalities, while the primary essential form occurs without associated comorbidities. Discussion: We report on a rare case of primary essential CVG with a 4-year history of normal-colored scalp skin mass in the parietal-occipital region without symptom in a 34-year-old male patient, retrospectively summarizing his pathological and Computer Tomography (CT) and magnetic resonance imaging (MRI) findings. The major clinical observations on the CT and MR sectional images include a thickened dermis and excessive growth of the scalp, forming the characteristic scalp folds. With the help of CT and MRI Three-dimensional (3D) reconstruction techniques, the characteristic skin changes could be displayed intuitively, providing more evidence for a diagnosis of CVG. At the 5-year followup, there were no obvious changes in the lesion. Conclusion: Based on our observations, we propose that not all patients with primary essential CVG need surgical intervention, and continuous clinical observation should be an appropriate therapy for those in stable condition.

The Coexistence of Olfactory Groove with Optic Nerve Sheath Meningioma Presenting with Anosmia: Case Report

2020 ◽  
Vol 16 ◽  
Author(s):  
Hatice Ferhan Kömürcü ◽  
Gıyas Ayberk ◽  
Ömer Anlar
Keyword(s):  
Case Report ◽  
Optic Nerve ◽  
Visual Impairment ◽  
Optic Nerve Sheath ◽  
Olfactory Groove ◽  
Nerve Sheath ◽  
Optic Nerve Sheath Meningioma ◽  
History Of ◽  
Olfactory Groove Meningioma ◽  
Memory Disturbance

Introduction: Meningiomas are the third most common intracranial tumors in adults after glial tumors and metastases. Olfactory groove meningiomas often grow without symptoms due to their slow growth rates and location in the frontal lobe. Optic nerve sheath meningiomas are benign neoplasms of the meninges surrounding the optic nerve. The coexistence of olfactory groove and optic nerve sheath meningiomas without any history of neurofibromatosis or radiotherapy has never been reported in the literature. Case Report: A 36-year-old female patient presenting with anosmia, headache, memory disturbance, and visual impairment and operated with the diagnosis of olfactory groove meningioma was reported. In the postoperative period, optic nerve sheath meningioma was detected in the imaging performed due to the persistence of visual impairment. Conclusion: Olfactory groove and optic nerve sheath meningiomas are rare tumors and can be diagnosed late because they progress slowly. Early diagnosis and treatment may affect the prognosis and morbidity of these patients favorably.

Solitary Paraganglioma of the Hypoglossal Nerve: Case Report

Neurosurgery ◽  
2011 ◽  
Vol 68 (4) ◽  
pp. E1170-E1174 ◽  
Author(s):  
Kazim Raza ◽  
Chandrasekaran Kaliaperumal ◽  
Michael Farrell ◽  
John A. O'Dwyer ◽  
Christopher Pidgeon
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Hypoglossal Nerve ◽  
Jugular Foramen ◽  
Low Grade ◽  
Resonance Imaging ◽  
Stereotactic Radiation ◽  
Hypoglossal Canal ◽  
Suboccipital Craniotomy ◽  
History Of

Abstract BACKGROUND AND IMPORTANCE: We report the case history of solitary hypoglossal paraganglioma in a 64-year-old woman. The surgical difficulties encountered in the removal of this challenging tumor are discussed and as a literature review provided. CLINICAL PRESENTATION: A 64-year-old woman presented with a short history of dysphonia, occasional dysphagia, tinnitus, altered taste, and unilateral left-sided tongue wasting. On examination, there was left lower motor hypoglossal paralysis. Imaging showed a discrete enhancing lobulated mass, measuring 2 × 2 cm, in the region of the hypoglossal nerve extending into the hypoglossal canal suggestive of hypoglossal paraganglioma. A left dorsolateral suboccipital craniotomy was performed with the patient in the sitting position. The hypoglossal nerve appeared to be enlarged, and the jugular foramen was normal. Complete surgical debulking of the tumor was not attempted because of its vascular nature. The nerve was decompressed, and neuropathology confirmed a low-grade paraganglioma arising from the hypoglossal nerve. The patient was scheduled to receive stereotactic radiation for further management. CONCLUSION: When a case of solitary hypoglossal paraganglioma is encountered in clinical practice, the aim of management should be mainly focused on achieving a diagnosis and preserving the hypoglossal nerve function. If there is evidence of vascularity in the lesion noted on magnetic resonance imaging, a preoperative angiogram should be obtained with a view for embolization. We decompressed the hypoglossal canal and achieved good improvement in the patient's symptoms. We recommend stereotactic radiosurgery for remnant and small hypoglossal tumors and regular follow-up with magnetic resonance imaging scans.

Comorbid Depressive Disorders in Epilepsy

CNS Spectrums ◽  
2010 ◽  
Vol 15 (S4) ◽  
pp. 3-6 ◽  
Author(s):  
Andres M. Kanner ◽  
Andrew J. Cole
Keyword(s):  
Emergency Room ◽  
Depressive Disorders ◽  
Clonic Seizure ◽  
Resonance Imaging ◽  
Abnormal Signal ◽  
The Past ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
History Of Depression

A 27-year-old woman presented to the emergency room after having witnessed generalized tonic clonic seizure while asleep. Birth and development were normal. She had suffered a single febrile seizure at 13 months of age, but had no other seizure risk factors. She was otherwise well except for a history of depression for which she was taking sertraline. Depressive symptoms had been well controlled over the past 3 months, but she had been under increased stress working to finish a doctoral thesis. Neurological examination was normal. Magnetic resonance imaging (MRI) showed modest asymmetry of the hippocampi, slightly smaller on the right, but no abnormal signal and well-preserved laminar anatomy. An electroencephalogram was negative. She was discharged from the emergency room with no treatment. Three weeks later, the patient's boyfriend witnessed an episode of behavioral arrest with lip smacking and swallowing automatisms lasting 45 seconds, after which the patient was confused for 20–30 minutes. The next morning she and her boyfriend kept a previously scheduled appointment with a neurologist.

scholarly journals Diagnosing RCVS Without the CV

2015 ◽  
Vol 6 (3) ◽  
pp. NP1-NP4 ◽  
Author(s):  
Nuri Jacoby ◽  
Ulrike Kaunzner ◽  
Marc Dinkin ◽  
Joseph Safdieh
Keyword(s):  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Multiple Risk Factors ◽  
Mri Brain ◽  
Cerebral Vasoconstriction ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
Reversible Encephalopathy ◽  
Occipital Lobes ◽  
The Brain

This is a case of a 52-year-old man with a past medical history of 2 episodes of coital thunderclap headaches as well as recent cocaine, marijuana, and pseudoephedrine use, who presented with sudden, sharp, posterior headache associated with photophobia and phonophobia. His initial magnetic resonance imaging (MRI) of the brain, magnetic resonance angiography (MRA) of the head, and magnetic resonance venography (MRV) of the head were all normal as well as a normal lumbar puncture. Given the multiple risk factors for reversible cerebral vasoconstriction syndrome (RCVS), the patient was treated for suspected RCVS, despite the normal imaging. Repeat MRI brain 3 days after hospital admission demonstrated confluent white matter T2 hyperintensities most prominent in the occipital lobes, typical of posterior reversible encephalopathy syndrome (PRES). Repeat MRA of the head 1 day after discharge and 4 days after the abnormal MRI brain showed multisegment narrowing of multiple arteries. This case demonstrates that RCVS may present with PRES on MRI brain and also exemplifies the need to treat suspected RCVS even if imaging is normal, as abnormalities in both the MRI and the MRA may be delayed.

scholarly journals Negative MRI findings in a case of degenerative myelopathy in a dog : clinical communication

2009 ◽  
Vol 80 (4) ◽  
Author(s):  
M. Okada ◽  
M. Kitagawa ◽  
K. Kanayama ◽  
H. Yamamura ◽  
T. Sakai
Keyword(s):  
Magnetic Resonance Imaging ◽  
Histopathological Examination ◽  
Clinical Signs ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Clinical Communication ◽  
Bladder Control ◽  
Blood Tests ◽  
Degenerative Myelopathy ◽  
Magnetic Resonance Imaging Mri

An 11-year-old male Rough collie was submitted with paraparesis, but did not respond to medical treatment. Clinical signs worsened and the dog displayed paralysis, inability to stand and loss of voluntary bladder control, whereupon magnetic resonance imaging (MRI) was performed. No significant abnormalities were identified from MRI, blood tests, cerebrospinal fluid tests or radiography. After MRI, the dog developed dyspnoea and died. Autopsy and subsequent histopathological examination led to a diagnosis of degenerative myelopathy.

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