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.

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 Vulvar Lipoma: A Case Report

2018 ◽  
Vol 40 (10) ◽  
pp. 647-649
Author(s):  
Ahmed Reda ◽  
Ihab Gomaa
Keyword(s):  
Magnetic Resonance Imaging ◽  
Case Report ◽  
Magnetic Resonance ◽  
Histopathological Examination ◽  
Surgical Excision ◽  
Imaging Modalities ◽  
Resonance Imaging ◽  
Rare Site ◽  
Magnetic Resonance Imaging Mri ◽  
Vulvar Mass

AbstractThe present study is a case report of vulvar lipoma. The vulva is a rare site for the development of lipomas, and the aim of the study is to determine if the current imaging modalities can diagnose lipomas correctly. A 43-year-old patient presented with a painless, slowly progressive, oval, mobile and non-tender right vulvar mass compressing the vagina and totally covering the introitus. Both the ultrasonography and magnetic resonance imaging (MRI) exams suggested the diagnosis of lipoma. Surgical excision was performed, and the histopathological examination of the mass confirmed a lipoma.

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 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 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 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 Idiopathic Thoracic Spontaneous Spinal Epidural Hematoma

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Abdurrahman Aycan ◽  
Seymen Ozdemir ◽  
Harun Arslan ◽  
Edip Gonullu ◽  
Cemal Bozkına
Keyword(s):  
Transverse Myelitis ◽  
Lower Extremities ◽  
Acute Onset ◽  
Sensory Loss ◽  
Spinal Epidural Hematoma ◽  
Resonance Imaging ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Spinal Epidural

A 33-year-old male patient experienced temporary sensory loss and weakness in the right lower extremity one month prior to admission. The patient was admitted to a private clinic with a three-day history of acute onset of sensory loss and weakness in both lower extremities and was treated and followed up with a prediagnosis of transverse myelitis and the Guillain-Barre syndrome (GBS). The patient was subsequently transferred to our clinic and the neurologic examination revealed paraplegia in both lower extremities, positive bilateral Babinski signs, and hypesthesia below the T10 dermatome with saddle anesthesia. The patient had urinary incontinence and thoracic magnetic resonance imaging (MRI) showed an image of a mass compressing the medulla.

scholarly journals Vaping Disrupts Ventilation-Perfusion Matching in Asymptomatic Users

2020 ◽  
Author(s):  
Abhilash S. Kizhakke Puliyakote ◽  
Ann R. Elliott ◽  
Rui Carlos Sá ◽  
Kevin M. Anderson ◽  
Laura E. Crotty Alexander ◽  
...  
Keyword(s):  
Inert Gas ◽  
Relative Dispersion ◽  
Resonance Imaging ◽  
Second Moments ◽  
Ventilation Heterogeneity ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
The Individual ◽  
The Right ◽  
Ventilation And Perfusion

Objective: Inhalation of e-cigarettes aerosols (vaping) has the potential to disrupt pulmonary gas exchange, but the effects in asymptomatic users are unknown. We assessed ventilation-perfusion (V̇A/Q̇) mismatch in asymptomatic e-cigarette users, using magnetic resonance imaging (MRI). We hypothesized that vaping induces V̇A/Q̇ mismatch through alterations in both ventilation and perfusion distributions. Methods: Nine young, asymptomatic Vapers with a >1yr vaping history, and no history of cardiopulmonary disease, were imaged supine using proton MRI, to assess the right lung at baseline and immediately after vaping. Seven young Controls were imaged at baseline only. Relative dispersion (SD/Mean) was used to quantify the heterogeneity of the individual ventilation and perfusion distributions. V̇A/Q̇ mismatch was quantified using the second moments of the ventilation and perfusion vs. V̇A/Q̇ ratio distributions, log scale, LogSDV̇ and LogSDQ̇ respectively, analogous to the multiple inert gas elimination technique. Results: Spirometry was normal in both groups. Ventilation heterogeneity was similar between groups at baseline (Vapers: 0.43±0.13, Controls: 0.51±0.11, P=0.13) but increased after vaping (to 0.57±0.17, P=0.03). Perfusion heterogeneity was greater (P=0.04) in Vapers at baseline (0.53±0.06) compared to Controls (0.44±0.10) but decreased after vaping (to 0.42±0.07, P=0.005). Vapers had greater (P=0.01) V̇A/Q̇ mismatch at baseline compared to Controls (LogSDQ̇ = 0.61±0.12 vs. 0.43±0.12), which was increased after vaping (LogSDQ̇ = 0.73±0.16, P=0.03). Conclusion: V̇A/Q̇ mismatch is greater in Vapers and worsens after vaping. This suggests subclinical alterations in lung function not detected by spirometry.

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.

scholarly journals Intraoral fibrolipoma: case report and review of literature

2018 ◽  
Vol 24 (3) ◽  
pp. 129-132 ◽  
Author(s):  
Joey Le Gall ◽  
Sébastien Laurence ◽  
Bouthaïna Khalifa ◽  
Camille Boulagnon-Rombi ◽  
Cédric Mauprivez ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Histopathological Examination ◽  
Surgical Excision ◽  
Soft Tissue Tumors ◽  
Clinical Aspect ◽  
Review Of Literature ◽  
Resonance Imaging ◽  
Benign Soft Tissue Tumors ◽  
Magnetic Resonance Imaging Mri ◽  
Well Differentiated

Introduction: Lipomas are benign soft tissue tumors, characterized by the presence of mature adipocytes in histopathology. Their development is slow and their etiologies are still controversial. Frequently subcutaneous, this type of lesion is rarely present in the oral cavity. Observation: A 67-year-old man consulted for a nodule on the inner face of his right cheek which had been developing for several years, with severe discomfort during chewing. The typical clinical aspect of this lesion suggested a lipoma. Magnetic resonance imaging (MRI) was performed before surgical excision in order to establish a differential diagnosis with a well-differentiated liposarcoma. Comments: The various imaging examinations, particularly MRI, combined with the analysis of the fat component and the morphology of the non-fat component (septa) enable us to define several categories of lesions likely to have a benign or malignant character. However, some lesions remain difficult to classify, and it is the histopathological examination along with, if necessary, immunohistochemistry (anti-MDM2 and/or anti-CDK4), which allows to confirm or not the malignancy of a lesion. Histological examination suggested a fibrolipoma. Conclusion: Although benign, the size of a fibrolipoma may can lead to significant functional and aesthetic discomfort for the patient. Surgical excision remains the treatment of choice.

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