Surgical treatment of a cerebral brain abscess in a cat

2011 ◽  
Vol 24 (01) ◽  
pp. 72-75 ◽  
Author(s):  
M. Beukers ◽  
L. F. H. Theyse ◽  
E. G. H. Wouters
Keyword(s):  
Magnetic Resonance Imaging ◽  
Histopathological Examination ◽  
Resonance Imaging ◽  
Ataxic Gait ◽  
Pupillary Light ◽  
Small Defect ◽  
History Of ◽  
The Right ◽  
Extensive Necrosis ◽  
Temporal Lobe Lesion

SummaryA nine-year-old male castrated European Shorthair cat was presented with a six-day history of progressive depression and ataxic gait. Neurological examination revealed depression, absent menace in the left eye, absent pupillary light reflex in the right eye, anisocoria, circling to the right, and delayed proprioception in all limbs. Magnetic resonance imaging showed a space-occupying right temporal lobe lesion adjacent to a small defect in the temporal bone suggestive of a meningo-encephalitis with concurrent abscess formation. The site was surgically approached by a rostrotentorial craniectomy. A cerebral abscess was found and debrided. Histopathological examination of the removed tissue demonstrated a subacute to chronic purulent encephalitis with extensive necrosis of brain tissue. Neurological symptoms resolved completely within two weeks and full recovery was observed four weeks after surgery.

scholarly journals A Case of Actinomycosis in the Rosenmüller’s Fossa

2020 ◽  
pp. 014556132097485
Author(s):  
Takahiro Kusaka ◽  
Shigeru Kuwashima ◽  
Harukazu Hiraumi ◽  
Hiroaki Sato
Keyword(s):  
Magnetic Resonance Imaging ◽  
Infectious Disease ◽  
Magnetic Resonance ◽  
Signal Intensity ◽  
Histopathological Examination ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Actinomyces Species ◽  
History Of ◽  
The Right

Actinomycosis is an infrequent infectious disease caused by Actinomyces species. Actinomycoses in the nasopharynx are extremely rare, especially in the Rosenmüller’s fossa. This report presents a case of actinomycosis in the Rosenmüller’s fossa. A 75-year-old woman presented with a 6-month history of bloody sputum. A grayish-white caseous tissue was found in the right Rosenmüller’s fossa after retracting the torus tubarius. Magnetic resonance imaging showed a well-defined lesion with low-signal intensity on T1- and T2-weighted images; small low-signal areas were interspersed inside. The lesion was removed under an endoscope. Histopathological examination revealed eosinophilic, club-shaped structures surrounding a hematoxylophilic center, leading to the diagnosis of actinomycosis. The symptoms improved after 3 months of amoxicillin administration but recurred quickly. After 6 months of amoxicillin administration, the bloody sputum disappeared, and local and imaging findings were normal.

Progressive Spasticity With a Single Magnetic Resonance Imaging Lesion

2021 ◽  
pp. 20-21
Author(s):  
Samantha A. Banks ◽  
Eoin P. Flanagan
Keyword(s):  
Magnetic Resonance Imaging ◽  
Multiple Sclerosis ◽  
Magnetic Resonance ◽  
Oligoclonal Bands ◽  
Resonance Imaging ◽  
Fluid Analysis ◽  
Skin Cancers ◽  
Clinical Episode ◽  
History Of ◽  
The Right

A 59-year-old White man with a history of excised basal and squamous cell skin cancers was evaluated for gait difficulties. He had erectile dysfunction but no bowel or bladder dysfunction. He also reported fatigue. He began using a cane for ambulation 2 weeks before evaluation at our facility. His medications included vitamin D and sildenafil. He was a lifelong nonsmoker and had no family history of multiple sclerosis. Neurologic examination at the time of our evaluation 3 years after onset was notable for a positive Hoffman sign on the right and mild weakness of the right triceps but preserved strength elsewhere. He had a spastic gait with moderate spasticity in both lower extremities, hyperreflexic patellar and ankle jerks bilaterally, and bilateral positive Babinski sign. The remainder of the examination was essentially normal. Magnetic resonance imaging of the brain showed a single lesion at the cervicomedullary junction and medullary pyramids, more prominent on the right. There was also some accompanying atrophy that was also visible on cervical spine magnetic resonance imaging. Results of cerebrospinal fluid analysis showed a normal white blood cell count, increased protein concentration (108 mg/dL), and positive oligoclonal bands. The progressive nature of his symptoms, spinal fluid results, and lesion appearance were all consistent with a diagnosis of progressive solitary sclerosis. At the time this patient was seen, no immunomodulatory medications for progressive solitary sclerosis were approved, so no immunomodulatory medication was tried. Ongoing symptomatic management was recommended. Progressive solitary sclerosis is a rare variant of multiple sclerosis in which patients have a single central nervous system demyelinating lesion and development of motor progression attributable to that lesion. Patients can initially have a clinical episode followed by progression or can have a progressive course without an initial relapse.

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.

Chondromatosis of the Choroid Plexus: Case Report

Neurosurgery ◽  
1990 ◽  
Vol 27 (2) ◽  
pp. 291-294 ◽  
Author(s):  
Jose Manuel Valdueza ◽  
Niels Freckmann ◽  
Hans-Dietrich Herrmann
Keyword(s):  
Magnetic Resonance Imaging ◽  
Choroid Plexus ◽  
Histopathological Examination ◽  
Synovial Chondromatosis ◽  
Intracranial Tumor ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Total Removal ◽  
Computed Tomographic ◽  
The Right

Abstract We report the case of a patient with successful total removal of a previously undescribed intracranial tumor arising in the right lateral ventricle (probably of metaplastic origin). The histopathological examination revealed benign chondromatosis of the choroid plexus. The pathogenesis of this lesion, with special reference to synovial chondromatosis and to the differential diagnosis of solid neoplastic chondromas, their clinical features, and computed tomographic and magnetic resonance imaging findings, is presented and discussed.

Trigeminal Neuralgia Caused by a Pontine Abscess: Case Report

Neurosurgery ◽  
2004 ◽  
Vol 55 (6) ◽  
pp. E1450-E1452 ◽  
Author(s):  
Ahmet Bekar ◽  
Hasan Kocaeli ◽  
Emel Yilmaz ◽  
Şeref Doğan
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Trigeminal Neuralgia ◽  
Sphenoid Sinus ◽  
Clinical Presentation ◽  
Resonance Imaging ◽  
Repeat Magnetic Resonance Imaging ◽  
Corneal Reflex ◽  
History Of ◽  
The Right

Abstract OBJECTIVE AND IMPORTANCE: Various intracranial abnormalities, including infectious conditions, may manifest as trigeminal neuralgia. CLINICAL PRESENTATION: A 33-year-old man presented with a 15-day history of right-sided facial pain and numbness. Neurological examination revealed diminished corneal reflex and facial sensation in the right V1–V2 distribution. Magnetic resonance imaging revealed a contrast-enhancing lesion centered at the right pons with extension of the enhancement to the sphenoid sinus. INTERVENTION: Broad-spectrum antibiotics were administered for 6 weeks. This resulted in alleviation of symptoms and resolution of the lesion as revealed by repeat magnetic resonance imaging. CONCLUSION: Presentation of a pons abscess with trigeminal neuralgia is rare, and to the best of our knowledge has not been reported previously. The patient was treated successfully with antibiotics alone.

scholarly journals Lymphoepithelial Cyst in the Palatine Tonsil

2016 ◽  
Vol 2016 ◽  
pp. 1-3 ◽  
Author(s):  
Fatih Bingöl ◽  
Hilal Balta ◽  
Buket Özel Bingöl ◽  
Recai Muhammet Mazlumoğlu ◽  
Korhan Kılıç
Keyword(s):  
Magnetic Resonance Imaging ◽  
Rare Case ◽  
Histopathological Examination ◽  
Cystic Mass ◽  
Palatine Tonsil ◽  
Lateral Part ◽  
Lymphoepithelial Cyst ◽  
Resonance Imaging ◽  
Tonsil Surgery ◽  
The Right

Lymphoepithelial cyst (LEC) is the most commonly encountered congenital neck pathology in the lateral part of the neck. A 66-year-old woman presented to the ENT clinic due to difficulty in swallowing persisting for approximately 1 year. Magnetic resonance imaging revealed a cystic mass at right tonsil. Surgery was performed due to this unilateral tonsillar mass, which was excised together with the right tonsil. LEC was diagnosed at histopathological examination. LEC in the palatine tonsil is rare, and only a few cases have been reported in the literature. We report a rare case of LEC in the palatine tonsil.

scholarly journals Atypical Meningioma in the Medulla Oblongata Parenchyma

2020 ◽  
Author(s):  
Qiushi Xu ◽  
Ziang Pan ◽  
Meidan Hou ◽  
Fang Peng
Keyword(s):  
Magnetic Resonance Imaging ◽  
Medulla Oblongata ◽  
Preoperative Diagnosis ◽  
Histopathological Examination ◽  
Atypical Meningioma ◽  
Resonance Imaging ◽  
Case Presentation ◽  
First Case ◽  
History Of ◽  
Atypical Meningiomas

Abstract Background: Glioma is the most common tumor occurring in the brainstem. A primary intraparenchymal meningioma located in the brainstem without dura attachment is rare. Meanwhile, atypical meningiomas that occur in the medulla oblongata parenchyma, and without dura coverage, are extremely rare. In this study, we report the first case of atypical meningioma in the medulla oblongata parenchyma and review the existing literature.Case presentation: A 38-year-old female was admitted at our hospital with a 2-week history of progressive neck and occipital pain. Magnetic resonance imaging revealed a presence of a 1.5x0.9cm mass lesion, located in the left side of the medulla oblongata, which was hypointense on T1-weighted and hyperintense on T2-weighted images, and with inhomogeneous enhancement following gadolinium-diethylenet-riamine pentaacetic acid (Gd-DTPA) administration. The initial preoperative diagnosis was glioma or angioblastoma. The patient underwent a total surgical resection of the left medulla oblongata tumor and the histopathological examination indicated that the lesion was an atypical meningioma. The patient returned to normal life after surgery.Conclusions: Although glioma is the most common tumor occurring in the brainstem parenchyma, the possibility of meningioma cannot be ruled out in this area.

scholarly journals Role of magnetic resonance imaging in the early diagnosis of paratesticular rhabdomyosarcoma

2016 ◽  
Vol 98 (5) ◽  
pp. e74-e76 ◽  
Author(s):  
T Shah ◽  
O Abu-Sanad ◽  
H Marsh
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Delayed Diagnosis ◽  
Resonance Imaging ◽  
Post Contrast ◽  
Diagnostic Uncertainty ◽  
Ultrasound Findings ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
The Right

Introduction Paratesticular lesions are common, and one subgroup is paratesticular rhabdomyosarcoma. The latter is a relatively uncommon (but aggressive) tumour that affects children and adolescents predominantly. Ultrasound is the first-line investigation, but can be inconclusive. Magnetic resonance imaging (MRI) can provide useful information, but its role in the diagnosis of rhabdomyosarcoma is not clear. Case History We report a 17-year-old male who presented with a one-month history of a rapidly enlarging, non-tender, lump in the right testicle. Urgent ultrasound of the scrotum revealed a heterogenous paratesticular mass that was hypervascular and showed calcification in the right inguinal area. MRI of the pelvis showed a solid, enhancing lesion of dimension located superior to the upper pole of the right testes and a slightly heterogeneous T2 signal, but was homogenous post-contrast. The patient underwent right radical orchidectomy, and histology results were assessed. He received chemotherapy and is being followed up. Conclusions Improvements in imaging in addition to early surgical intervention and chemotherapy treatment are crucial to improve survival chances against rhabdomyosarcoma. Ultrasound findings for benign diseases may mimic those seen in rhabdomyosarcoma. In such cases of diagnostic uncertainty, our surgical team suggest MRI to reduce the risk of a delayed diagnosis and time to treatment.

scholarly journals Multiple extradural spinal arachnoid cysts: A case report

2021 ◽  
Vol 12 ◽  
pp. 101
Author(s):  
Joaquim Francisco Cavalcante-Neto ◽  
Lúcio Soares e Silva-Neto ◽  
Paulo Roberto Lacerda Leal ◽  
Cláudio Henrique Souza Moreira ◽  
Espártaco Moraes Lima Ribeiro ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Histopathological Examination ◽  
Sensory Function ◽  
Lower Limbs ◽  
Arachnoid Cysts ◽  
Type I ◽  
Case Description ◽  
Resonance Imaging ◽  
Complete Surgical Resection ◽  
History Of

Background: Extradural spinal arachnoid cysts (SACs) rarely cause neural compression and disability. Case Description: A 38-year-old female presented with a history of two episodes of falling due to transient weakness in the lower limbs. The neurological examination showed normal motor and sensory function, but hyperreflexia. The thoracic magnetic resonance imaging revealed multiple extradural SACs between the T3-L1 levels. Following complete surgical resection of the most symptomatic cyst, she did well. The histopathological examination confirmed a Type I extradural SAC. Conclusion: Here, we discussed one case and reviewed the literature on the diagnosis and treatment of multiple extradural SACs.

scholarly journals Viscous Leptomeningeal Pseudotumoural Masses and Multiple Cranial Neuropathy – Severe Presentation of Neurosarcoidosis

2020 ◽  
Author(s):  
Rita Ribeiro Dias ◽  
Inês Henriques Ferreira ◽  
Raquel Faria
Keyword(s):  
Magnetic Resonance Imaging ◽  
Penetrating Trauma ◽  
Cranial Neuropathy ◽  
High Dose ◽  
Resonance Imaging ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Base Of The Skull ◽  
Multiple Cranial Neuropathy

We present a case of a 56-year-old man with a history of episcleritis (left) and cluster headache (left) who had a penetrating trauma of the left eye leading to amaurosis 1 month previously. Since then, he developed multiple cranial neuropathy of the right side (V, VII, VIII, IX, X, XI and XII cranial pairs). Magnetic resonance imaging (MRI) revealed an infiltrative lesion of the base of the skull which extended to the retropharyngeal and jugular space, which progressed to multiple leptomeningeal masses extending to the clivus, despite aggressive immunosuppression. Rebiopsy of 1 meningeal mass supported the diagnosis of neurosarcoidosis. The patient finally responded to high-dose prolonged infliximab therapy, with complete remission.

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