Calcifying Pseudoneoplasm of the Cerebellopontine Angle: Case Report

2011 ◽  
Vol 69 (suppl_1) ◽  
pp. ons117-ons120 ◽  
Author(s):  
Tiffany R. Hodges ◽  
Isaac O. Karikari ◽  
Shahid M. Nimjee ◽  
June Tibaleka ◽  
Allan H. Friedman ◽  
...  
Keyword(s):  
Case Report ◽  
Posterior Fossa ◽  
Cerebellopontine Angle ◽  
Histopathological Examination ◽  
Ct Scanning ◽  
Foramen Magnum ◽  
Occipital Condyle ◽  
History Of ◽  
Blurry Vision ◽  
Magnetic Resonance Imaging Mri

Abstract BACKGROUND AND IMPORTANCE: Calcifying pseudoneoplasms are rare tumors of the neuraxis. To our knowledge, this is only the second reported case in the literature of calcifying pseudoneoplasm of the cerebellopontine angle. The etiology and natural history of these neoplasms are not well understood. This case report provides a thorough review of the histology and potential origins of calcifying pseudoneoplasm. CLINICAL PRESENTATION: A 34-year-old previously healthy man presented with a 6-month history of progressive worsening headaches, fatigue, tinnitus, dizziness, and blurry vision. Neurological examination was notable for tongue deviation, tongue atrophy, and left uvula deviation. Computed tomography (CT) scanning showed a 3.3 × 3.5 cm densely calcified posterior fossa mass appearing to arise from the occipital bone. Magnetic resonance imaging (MRI) revealed a 4.3 × 2.9 × 2.9 cm left posterior fossa enhancing mass with the margin tip from the left occipital condyle. A transcondylar approach was used to resect the lesion. The mass was found to have eroded through the bone into the foramen magnum. Histopathological examination confirmed the diagnosis of calcifying pseudoneoplasm of the cerebellopontine angle. CONCLUSION: Calcifying pseudoneoplasms should be considered in the differential diagnosis of calcified cerebellopontine angle tumors. Histopathologic diagnosis is extremely important in the characterization of these lesions in order to direct the course of appropriate management. An inaccurate diagnosis of a malignant tumor can result in potentially harmful and unnecessary therapies, as prognosis for these lesions is generally favorable.

Popliteal artery thrombosis secondary to a tibial osteochondroma

VASA ◽  
2011 ◽  
Vol 40 (3) ◽  
pp. 251-255 ◽  
Author(s):  
Gruber-Szydlo ◽  
Poreba ◽  
Belowska-Bien ◽  
Derkacz ◽  
Badowski ◽  
...  
Keyword(s):  
Case Report ◽  
Magnetic Resonance Angiography ◽  
Popliteal Artery ◽  
Doppler Ultrasonography ◽  
Histopathological Examination ◽  
Previous History ◽  
Plain Radiography ◽  
Artery Thrombosis ◽  
History Of ◽  
The Right

Popliteal artery thrombosis may present as a complication of an osteochondroma located in the vicinity of the knee joint. This is a case report of a 26-year-old man with symptoms of the right lower extremity ischaemia without a previous history of vascular disease or trauma. Plain radiography, magnetic resonance angiography and Doppler ultrasonography documented the presence of an osteochondrous structure of the proximal tibial metaphysis, which displaced and compressed the popliteal artery, causing its occlusion due to intraluminal thrombosis..The patient was operated and histopathological examination confirmed the diagnosis of osteochondroma.

scholarly journals Primary Occipital Ewing’s Sarcoma with Subsequent Spinal Seeding

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Ali Alqahtani ◽  
Roaa Amer ◽  
Eman Bakhsh
Keyword(s):  
Posterior Fossa ◽  
Ewing’S Sarcoma ◽  
Ewing's Sarcoma ◽  
Bone Cancer ◽  
Surgical Excision ◽  
Good Prognosis ◽  
Bone Lesions ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
Whole Spine

Ewing’s sarcoma is a primary bone cancer that mainly affects the long bones. This malignancy is particularly common in pediatric patients. Primary cranial involvement accounts for 1% of cases, with occipital involvement considered extremely rare. In this case study, primary occipital Ewing’s sarcoma with a posterior fossa mass and subsequent relapse resulting in spinal seeding is reported. A 3-year-old patient presented with a 1-year history of left-sided headaches, localized over the occipital bone with progressive torticollis. Computed tomography (CT) imaging showed a mass in the left posterior fossa compressing the brainstem. The patient then underwent surgical excision followed by adjuvant chemoradiation therapy. Two years later, the patient presented with severe lower back pain and urinary incontinence. Whole-spine magnetic resonance imaging (MRI) showed cerebrospinal fluid (CSF) seeding from the L5 to the S4 vertebrae. Primary cranial Ewing’s sarcoma is considered in the differential diagnosis of children with extra-axial posterior fossa mass associated with destructive permeative bone lesions. Although primary cranial Ewing’s sarcoma typically has good prognosis, our patient developed metastasis in the lower spine. Therefore, with CNS Ewing’s sarcoma, screening of the entire neural axis should be taken into consideration for early detection of CSF seeding metastasis in order to decrease the associated morbidity and mortality.

scholarly journals Severe Austrian Syndrome in an Immunocompromised Adult Patient – A Case Report

2018 ◽  
Vol 4 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Ioana Raluca Chirteș ◽  
Dragos Florea ◽  
Carmen Chiriac ◽  
Oana Maria Mărginean ◽  
Cristina Mănășturean ◽  
...  
Keyword(s):  
Case Report ◽  
Streptococcus Pneumoniae ◽  
Histopathological Examination ◽  
Fatal Outcome ◽  
Multiple Organ ◽  
Etiologic Agent ◽  
Acute Meningitis ◽  
History Of ◽  
Valvular Lesions ◽  
Formalin Fixed

AbstractBackground: Known also as Osler’s triad, Austrian syndrome is a complex pathology which consists of pneumonia, meningitis and endocarditis, all caused by the haematogenous dissemination of Streptococcus pneumoniae. The multivalvular lesions are responsible for a severe and potential lethal outcome.Case report: The case of a 51-year-old female patient, with a past medical history of splenectomy, is presented. She developed bronchopneumonia, acute meningitis and infective endocarditis as a result of Streptococcus pneumoniae infection and subsequently developed multiple organ dysfunction syndromes which led to a fatal outcome. Bacteriological tests did not reveal the etiological agent. The histopathological examination showed a severe multivalvular endocarditis, while a PCR based molecular analysis from formalin fixed valvular tissue identified Streptococcus pneumoniae as the etiologic agent.Conclusions: The presented case shows a rare syndrome with a high risk of morbidity and mortality. Following the broad-spectrum treatment and intensive therapeutic support, the patient made unfavourable progress which raised differential diagnosis problems. In this case, the post-mortem diagnosis demonstrated multiple valvular lesions occurred as a result of endocarditis.

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.

scholarly journals Disseminated Mycobacterium tuberculosis following renal transplant: A case report

Pneumologia ◽  
2021 ◽  
Vol 69 (3) ◽  
pp. 182-185
Author(s):  
Mahmoud Sadeghi-Haddad-Zavareh ◽  
Mohammad Reza Hasanjani Roushan ◽  
Zeinab Mohseni Afshar ◽  
Masomeh Bayani ◽  
Soheil Ebrahimpour ◽  
...  
Keyword(s):  
Case Report ◽  
Renal Transplant ◽  
Psoas Abscess ◽  
Miliary Tuberculosis ◽  
Caseous Necrosis ◽  
High Clinical Suspicion ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
The Brain ◽  
Current Report

Abstract Miliary tuberculosis (TB) presents a major challenge following a renal transplant in humans. In the current report, we described a patient with disseminated TB following renal transplantation. The article presents the case of a 38-year-old man who presented an 8-month history of fever, chills, sweating, low-back pain and significant weight loss. Chest radiography and computed tomography (CT) scan showed miliary nodules distributed in the two lungs. The transbronchial lung biopsy revealed a granulomatous reaction with caseous necrosis. Magnetic resonance imaging (MRI) of the brain found multiple tuberculomas. Also, MRI of the lumbosacral was indicative of a psoas abscess. Therefore, miliary pulmonary, cerebral and spinal TB was confirmed. The patient was started on an anti-TB regimen and paravertebral aspiration was also done. The patient’s condition improved considerably. In conclusion, this case report can remind us of the importance of maintaining a high clinical suspicion and performing a thorough workup to establish a timely diagnosis and treatment of miliary TB.

Atlantoaxial epidural abscess secondary to grass awn migration in a dog

2014 ◽  
Vol 27 (02) ◽  
pp. 155-158 ◽  
Author(s):  
U. Geissbühler ◽  
P. Karli ◽  
F. Forterre ◽  
E. Linon
Keyword(s):  
Magnetic Resonance Imaging ◽  
Case Report ◽  
Epidural Abscess ◽  
Cervical Vertebrae ◽  
Clinical Signs ◽  
Resonance Imaging ◽  
Mri Findings ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
Grass Awn

SummaryA two-year-old female Lucerne Hound was presented with a one-week history of signs of progressive neck pain, inappetence, apathy, and an elevated rectal temperature. Findings of magnetic resonance imaging (MRI) were consistent with a foreign body abscess in the epidural space at the level of the first and second cervical vertebrae. A leftsided dorso-lateral atlantoaxial approach was performed, revealing an epidural abscess containing a grass awn. The clinical signs resolved within three days of surgery and the dog made a full recovery. This case report shows that grass awns can migrate to the atlantoaxial region in dogs and MRI findings lead to a suspicion of caudo-cranial migration within the spinal canal.

scholarly journals Incidental Finding of Posterior Fossa Epidermoid, In a Head Trauma Patient: A Case Report

2019 ◽  
Vol 17 (1) ◽  
pp. 56-57
Author(s):  
Narendra Prasad Baskota ◽  
K. Singh
Keyword(s):  
Case Report ◽  
Head Injury ◽  
Posterior Fossa ◽  
Head Trauma ◽  
Incidental Findings ◽  
Incidental Finding ◽  
Brain Lesions ◽  
Minor Head Trauma ◽  
Post Operative Period ◽  
History Of

Incidental findings of brain lesions in head injury are seen frequently. In our region NCC is common, but in literature meningioma andarachnoid cyst are common. Here we report a case of incidental finding of posterior fossa epidermoid in a 25 years old male patient who had history of minor head trauma which was operated with relatively uneventful post operative period.

scholarly journals Reversible splenial lesion syndrome due to oxcarbazepine withdrawal: case report and literature review

2018 ◽  
Vol 46 (3) ◽  
pp. 1277-1281 ◽  
Author(s):  
Chaoyang Jing ◽  
Lichao Sun ◽  
Zhuo Wang ◽  
Chaojia Chu ◽  
Weihong Lin
Keyword(s):  
Case Report ◽  
Corpus Callosum ◽  
Epileptic Seizures ◽  
Resonance Imaging ◽  
Splenial Lesion ◽  
History Of ◽  
Reversible Lesion ◽  
Magnetic Resonance Imaging Mri ◽  
Reversible Splenial Lesion Syndrome

Background Reversible splenial lesion syndrome is a distinct entity radiologically characterized by a reversible lesion in the splenium of the corpus callosum. According to previous reports, this condition may be associated with antiepileptic drug use or withdrawal. We herein report a case of reversible splenial lesion syndrome associated with oxcarbazepine withdrawal. Case Report A 39-year-old man presented with an 8-year history of epileptic seizures. During the previous 3 years, he had taken oxcarbazepine irregularly. One week prior to admission, he withdrew the oxcarbazepine on his own, and the epilepsy became aggravated. Magnetic resonance imaging (MRI) revealed an isolated lesion in the splenium of the corpus callosum with slight hypointensity on T1-weighted imaging and slight hyperintensity on T2-weighted imaging. Regular oxcarbazepine was prescribed. Over a 5-month follow-up period, repeat MRI showed that the abnormal signals in the splenium of the corpus callosum had completely disappeared. Conclusion Reversible splenial lesion syndrome is a rare clinicoradiological disorder that can resolve spontaneously with a favorable outcome. Clinicians should be aware of this condition and that oxcarbazepine withdrawal is a possible etiological factor.

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 Open-Ring Enhancement in Pseudotumoral Multiple Sclerosis: Important Radiological Aspect

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Frederico Carvalho de Medeiros ◽  
Lucas Alverne Freitas de Albuquerque ◽  
Jose Eymard Homem Pittella ◽  
Renata Brant de Souza ◽  
Antonio Pereira Gomes Neto ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Stereotactic Biopsy ◽  
Demyelinating Disease ◽  
Histopathological Examination ◽  
Previous History ◽  
Open Ring ◽  
Cranial Mri ◽  
History Of ◽  
Radiological Aspect ◽  
Magnetic Resonance Imaging Mri

Introduction. Observation of open-ring enhancement in magnetic resonance imaging (MRI) is considered a specificity marker for diagnosing pseudotumoral multiple sclerosis (MS). This finding is of great value in the differential diagnosis of tumefactive lesions.Case Report. We describe a 55-year-old white woman, with previous history of ovarian cancer and recent history of fatigue and bilateral retroorbital pain. Important bilateral visual impairment evolved over one month. Physical examination detected the presence of right homonymous hemianopia. Cranial MRI showed an expanding lesion with open-ring enhancement. Given the range of diagnostic possibilities, a stereotactic biopsy was performed, and histopathological examination was consistent with an active demyelinating disease. The patient was treated with 1 g of methylprednisolone and symptoms improved following a significant reduction in the lesion.Conclusions. We highlight the MRI results suggestive of pseudotumoral MS, especially open-ring enhancement, which is an important radiologic aspect to diagnosis and can assist in avoiding unnecessary biopsies.

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