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.

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 Long-term management of canine disseminated granulomatous meningoencephalitis with imatinib mesylate: a case report

2019 ◽  
Vol 64 (No. 02) ◽  
pp. 92-99
Author(s):  
JH Song ◽  
TS Hwang ◽  
HC Lee ◽  
DH Yu ◽  
BJ Seung ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Tyrosine Kinase ◽  
Imatinib Mesylate ◽  
Tyrosine Kinases ◽  
Histopathological Examination ◽  
Present Report ◽  
Clinical Signs ◽  
Resonance Imaging ◽  
First Case

A seven-year-old Toy Poodle was presented for progressive ataxia and seizure episodes. Magnetic resonance imaging revealed inflammatory lesions in the cerebrum and brainstem. Management with imatinib mesylate, prednisolone and hydroxyurea were initiated and resulted in complete resolution of the clinical signs. In regular magnetic resonance imaging scans, the overall appearance of the lesions deteriorated but improved again after an increase in the imatinib mesylate dose. The patient had not shown any neurological signs until death and survived for 1052 days after initial presentation. On histopathological examination, the patient was diagnosed with disseminated granulomatous meningoencephalitis involving the cerebrum and brainstem. Immunohistochemical staining was performed on the five types of tyrosine kinase (PDGFR-α, PDGFR-ß, VEGFR-2, c-Kit and c-Abl proteins), which constitute therapeutic targets for conventional multitargeted tyrosine kinase inhibitors. The immunohistochemical analysis revealed that all these tyrosine kinases were expressed in the brain samples. The present report describes the first case of the use of imatinib mesylate therapy for granulomatous meningoencephalitis in the dog. Therapy with imatinib mesylate plus glucocorticoids appears promising as a new therapeutic intervention in meningoencephalitis of unknown aetiology.

scholarly journals Case report: rare presentation of primary angiomyolipoma in the middle ear

BMC Surgery ◽  
2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Fei Wang ◽  
Hao Wang
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Middle Ear ◽  
Unusual Case ◽  
Histopathological Examination ◽  
Resonance Imaging ◽  
Rare Presentation ◽  
Case Presentation ◽  
Common Chronic Disease ◽  
Middle Ear Cholesteatoma

Abstract Background Angiomyolipoma (AML) is a common, chronic disease usually localized in kidney and liver organs; but occurring frequently outside the kidney or liver. Case presentation We describe an unusual case of a 62-year-old female patient with AML in the middle ear. She presented with left earache, tinnitus and hearing loss. Preoperative computed tomography and magnetic resonance imaging seemed to reveal a middle ear cholesteatoma. The patient underwent surgical resection of this lesion, and the AML was finally confirmed by histopathological examination. The patient was discharged on the 8th postoperative day and did not seek further treatment. Conclusions Extraperitoneal AML is rare and accurately identified by histopathology. The recommended management is surgery for AML in the middle ear.

Cystic Cerebellar Schwannoma: Case Report

Neurosurgery ◽  
1991 ◽  
Vol 29 (2) ◽  
pp. 296-300 ◽  
Author(s):  
H.D. Tran-Dinh ◽  
Y.S. Soo ◽  
P. O'Neil ◽  
R. Chaseling
Keyword(s):  
Magnetic Resonance Imaging ◽  
Case Report ◽  
Magnetic Resonance ◽  
Medulla Oblongata ◽  
Preoperative Diagnosis ◽  
Foramen Magnum ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Computed Tomographic ◽  
Solid Part

Abstract We report a case of cerebellar schwannoma in a 64-year-old woman. The tumor was defined on computed tomographic and magnetic resonance imaging scans and confirmed on surgery. The solid part of the tumor appeared to be derived from the inferior vermis of the cerebellum, the cystic part extending toward the medulla oblongata and the foramen magnum. The problem of preoperative diagnosis based on magnetic resonance imaging findings is discussed.

Primary medulla oblongata teratomas

2014 ◽  
Vol 14 (3) ◽  
pp. 296-300 ◽  
Author(s):  
Da Li ◽  
Shu-Yu Hao ◽  
Zhen Wu ◽  
Li-Wei Zhang ◽  
Jun-Ting Zhang
Keyword(s):  
Medulla Oblongata ◽  
Histopathological Examination ◽  
Mature Teratoma ◽  
Radiographic Findings ◽  
First Case ◽  
Cystic Component ◽  
Long Term Follow Up ◽  
History Of

Medulla oblongata teratomas are rare. The authors report 2 new cases of teratomas that occurred exclusively in the medulla oblongata. The first case was in a 9-year-old boy who presented with a 6-month history of neck pain and repeated paroxysmal vomiting. Based on preoperative radiographic findings, the initial diagnosis was of an intraaxial medulla oblongata hemangioblastoma. Intraoperatively, the cystic component of the tumor was gray, gelatinous, and soft in consistency. The solid component was light pink, rubbery, and nodular in appearance, with an identifiable boundary. The lesion was completely removed. Histopathological investigation revealed a mature teratoma. Postoperatively, the patient was supported with ventilator assistance and received a tracheotomy, but died of intracranial infection. The second case was in a 10-year-old boy with intermittent headache for 1 month. Radiographs revealed an exophytic cystic and solid lesion with dorsal involvement of the medulla oblongata. The lesion was predominantly solid, pinkish gray, tenacious, and moderately vascularized, with clearly delineated surgical dissection planes. The histopathological examination confirmed a diagnosis of immature teratoma. Total resection was achieved, followed by postoperative chemotherapy. He was alive without recurrence of the lesion or symptoms at 59 months after surgery. Resection of medulla oblongata teratoma is challenging, with inherent surgical risks that are contingent on the tumor growth pattern. Teratomas should be considered in the differential diagnosis of brainstem lesions. Chemotherapy has been suggested for immature teratomas. Long-term follow-up and larger studies of teratomas in unusual locations are required to improve practitioners' understanding of this disease's treatment and outcomes.

scholarly journals Neglected Tarlov cysts: a case of a Tarlov cyst with spermatorrhea

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Pan Sun ◽  
Wangbing Xu ◽  
Yongxiang Ye ◽  
Faming Zhong ◽  
Xuan Wan ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Male Patient ◽  
Resonance Imaging ◽  
Pertinent Literature ◽  
Case Presentation ◽  
Tarlov Cyst ◽  
Tarlov Cysts ◽  
History Of ◽  
Sacral Canal

Abstract Background Tarlov cysts are a commonly misdiagnosed condition, which can present with many rare symptoms. We report a case of a Tarlov cyst with spermatorrhea and review the pertinent literature. Case presentation A 42-year-old male patient had a history of spermatorrhea for > 10 years, but was incorrectly diagnosed as the patient and the doctors consistently mistook the symptoms for a genitourinary disease. Magnetic resonance imaging showed that two cysts in the sacral canal. The diagnosis was Tarlov cyst. We performed surgery to remove the cyst and the symptoms of spermatorrhea disappeared after the operation. Conclusions This case demonstrates that orthopedics and urologists should improve their understanding of Tarlov cysts to avoid misdiagnosis and mistreatment.

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 Vulvar Pyogenic Granuloma in a Postmenopausal Woman: Case Report and Review of the Literature

2011 ◽  
Vol 2011 ◽  
pp. 1-3 ◽  
Author(s):  
Deniz Cemgil Arikan ◽  
Gurkan Kiran ◽  
Hamide Sayar ◽  
Bulent Kostu ◽  
Ayhan Coskun ◽  
...  
Keyword(s):  
Postmenopausal Woman ◽  
Histopathological Examination ◽  
Single Layer ◽  
Pyogenic Granuloma ◽  
Case Presentation ◽  
First Case ◽  
History Of ◽  
Foul Smell ◽  
Vascular Channels ◽  
The Right

Introduction. Although pyogenic granulomas (PG) are common and benign vascular proliferations of the skin and mucous membranes, they are relatively rare on the vulva.Case Presentation. A 57-year-old G7P7 postmenopausal woman presented with a 3-year history of a foul smell and bleeding lesions in the genital region. A gynecologic examination revealed multiple large papillomatous, pedunculated, and lobulated lesions that were cherry-red and infective in appearance. There was a 2-cm lesion at the upper intersection of the labia majora, a 2-cm lesion on the right labium majus, and a 4-cm lesion on the clitoris. The patient complained of itching, and the lesions were asymptomatic, except for occasional bleeding. All lesions were excised and sent for histopathological examination, which revealed an ulcerated polypoidal structure with extensive proliferation of vascular channels lined by a single layer of endothelium. The histopathological features were consistent with PG.Conclusion. The present case is the first case of multiple pyogenic granulomas on the vulva in a postmenopausal woman.

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.

Intramedullary hemorrhage in spinal cord hemangioblastoma

1994 ◽  
Vol 81 (6) ◽  
pp. 937-940 ◽  
Author(s):  
John S. Yu ◽  
M. Priscilla Short ◽  
James Schumacher ◽  
Paul H. Chapman ◽  
Griffith R. Harsh
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Histopathological Examination ◽  
Resonance Imaging ◽  
Content Type ◽  
First Case ◽  
Surgical Evacuation ◽  
Acute Paraplegia ◽  
Spinal Hemangioblastoma ◽  
Fine Print

✓ The authors describe two cases of intramedullary hemorrhage caused by thoracic hemangioblastoma. Both patients presented with acute paraplegia. The lesion in the first case was diagnosed by myelography and in the second by magnetic resonance imaging. Emergency surgical evacuation of the intramedullary hematoma and tumor was performed in these patients. Hemangioblastoma was confirmed by histopathological examination in both cases. Both patients remain paraplegic after 7 and 1 years, respectively. Intramedullary hemorrhage is a rare and devastating effect of spinal hemangioblastoma.

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