Malignant intracerebral nerve sheath tumor with intratumoral calcification

2000 ◽  
Vol 92 (2) ◽  
pp. 338-341 ◽  
Author(s):  
Minoru Tanaka ◽  
Soichiro Shibui ◽  
Kazuhiro Nomura ◽  
Yukihiro Nakanishi ◽  
Tadashi Hasegawa ◽  
...  
Keyword(s):  
Nerve Sheath Tumor ◽  
Pathological Features ◽  
Resonance Imaging ◽  
Content Type ◽  
Nerve Sheath ◽  
First Case ◽  
The Right ◽  
Tomography Scanning ◽  
Considerable Enhancement ◽  
Fine Print

✓ The authors present the clinical, radiological, and pathological features of a malignant intracerebral nerve sheath tumor that occurred in the right parietooccipital lobe of a 4-year-old girl. Computerized tomography scanning and magnetic resonance imaging demonstrated a 5 × 5 × 4—cm multiloculated mass with considerable enhancement of the irregularly shaped septa and clearly calcified areas within the mass. Among five cases reported in the literature, this patient is the youngest and represents the first case in which there is radiological evidence of intratumoral calcification.

Intracranial sparganosis: an uncommon infection

1984 ◽  
Vol 60 (6) ◽  
pp. 1282-1286 ◽  
Author(s):  
Karl Anders ◽  
Kevin Foley ◽  
W. Eugene Stern ◽  
W. Jann Brown
Keyword(s):  
United States ◽  
Lower Extremity ◽  
Parietal Lobe ◽  
The United States ◽  
Pathological Features ◽  
Content Type ◽  
First Case ◽  
The Right ◽  
Clinical And Pathological Features ◽  
Fine Print

✓ The first case of intracranial sparganosis to be reported from the United States is presented. The patient, a 27-year-old woman, complained of focal seizures involving the right lower extremity. A left parietal parasagittal craniotomy was performed, and a granuloma containing a sparganum was excised from the parietal lobe. The clinical and pathological features of sparganosis are reviewed. Only five cases of intracranial sparganosis have previously been described.

Intracranial neurothekeoma (nerve-sheath myxoma)

1993 ◽  
Vol 79 (2) ◽  
pp. 280-282 ◽  
Author(s):  
Werner Paulls ◽  
Monika Warmuth-Metz ◽  
Niels Sörensen
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Nerve Sheath Tumor ◽  
Resonance Imaging ◽  
Content Type ◽  
Gadolinium Administration ◽  
Nerve Sheath ◽  
Definitive Therapy ◽  
Nerve Sheath Myxoma ◽  
Fine Print

✓ Neurothekeoma is a benign cutaneous nerve-sheath tumor. The authors describe the case of a 16-year-old girl with a parasellar neurothekeoma that was successfully removed. Magnetic resonance imaging with gadolinium administration revealed bright enhancement of the peripheral portions and nonhomogeneous uptake in the central areas, which corresponded histologically to the vascular capsule and the myxoid center. It was concluded that: 1) intracranial neurothekeoma does exist, and 2) surgical resection appears to be the definitive therapy.

Coerced training of the nondominant hand resulting in cortical reorganization: a high-field functional magnetic resonance imaging study

2004 ◽  
Vol 101 (2) ◽  
pp. 310-313 ◽  
Author(s):  
Tsutomu Nakada ◽  
Yukihiko Fujii ◽  
Ingrid L. Kwee
Keyword(s):  
Magnetic Resonance Imaging ◽  
High Field ◽  
Cortical Reorganization ◽  
Functional Magnetic Resonance ◽  
Resonance Imaging ◽  
Content Type ◽  
Hand Motion ◽  
Left Handed ◽  
The Right ◽  
Fine Print

Object. The authors investigated brain strategies associated with hand use in an attempt to clarify genetic and nongenetic factors influencing handedness by using high-field functional magnetic resonance imaging. Methods. Three groups of patients were studied. The first two groups comprised individuals in whom handedness developed spontaneously (right-handed and left-handed groups). The third group comprised individuals who were coercively trained to use the right hand and developed mixed handedness, referred to here as trained ambidexterity. All trained ambidextrous volunteers were certain that they were innately left-handed, but due to social pressure had modified their preferred hand use for certain tasks common to the right hand. Although right-handed and left-handed volunteers displayed virtually identical cortical activation, involving homologous cortex primarily located contralateral to the hand motion, trained ambidextrous volunteers exhibited a clearly unique activation pattern. During right-handed motion, motor areas in both hemispheres were activated in these volunteers. During left-handed motion, the right supplemental motor area and the right intermediate zone of the anterior cerebellar lobe were activated significantly more frequently than observed in naturally right-handed or left-handed volunteers. Conclusions. The results provide strong evidence that cortical organization of spontaneously developed right- and left-handedness involves homologous cortex primarily located contralateral to the hand motion, and this organization is likely to be prenatally determined. By contrast, coerced training of the nondominant hand during the early stages of an individual's development results in mixed handedness (trained ambidexterity), indicating cortical reorganization.

Malignant intraventricular schwannoma

1995 ◽  
Vol 82 (1) ◽  
pp. 121-124 ◽  
Author(s):  
Jin-Myung Jung ◽  
Hyung-Jin Shin ◽  
Je G. Chi ◽  
In Sung Park ◽  
Eun Sang Kim ◽  
...  
Keyword(s):  
Lateral Ventricle ◽  
Malignant Schwannoma ◽  
Pathological Features ◽  
Content Type ◽  
The Right ◽  
Subtotal Removal ◽  
Fine Print

✓ The authors present the clinical, radiological, and pathological features of a malignant schwannoma occurring in the right lateral ventricle of a 40-year-old man. Metastasis to both cerebellopontine angles and to the cerebellum was found 7 months after subtotal removal of the tumor.

Fetal meningeal hemangiopericytoma

2002 ◽  
Vol 97 (5) ◽  
pp. 1217-1220 ◽  
Author(s):  
Sergio Cavalheiro ◽  
Fábio Veiga de Castro Sparapani ◽  
Antonio Fernandes Moron ◽  
Marcia Cristina da Silva ◽  
João Norberto Stávale
Keyword(s):  
Magnetic Resonance Imaging ◽  
Complete Resection ◽  
Prenatal Period ◽  
Resonance Imaging ◽  
Content Type ◽  
Abdominal Magnetic Resonance Imaging ◽  
Meningeal Hemangiopericytoma ◽  
Tomography Scanning ◽  
Fine Print

✓ The authors present the case of a 34-week-old fetus with a meningeal hemangiopericytoma that was diagnosed in utero by using abdominal magnetic resonance imaging. After birth, the neonate underwent transfontanelle ultrasonography and computerized tomography scanning of the head, which confirmed the presence of an extradural hyperdense lesion. Six hours after birth the neonate underwent a craniotomy, which resulted in complete resection of the mass. The postoperative period was uneventful and the newborn was discharged 7 days later. At 2-year follow-up examination there was no evidence of recurrence of the lesion. The authors have found no mention in the literature of this entity diagnosed in the prenatal period.

Multiple choroid plexus papillomas of the lateral ventricle distinct from villous hypertrophy

1998 ◽  
Vol 88 (3) ◽  
pp. 581-585 ◽  
Author(s):  
Atsuo Yoshino ◽  
Yoichi Katayama ◽  
Takao Watanabe ◽  
Jun Kurihara ◽  
Shigeyoshi Kimura
Keyword(s):  
Choroid Plexus ◽  
Lateral Ventricle ◽  
The Other ◽  
Review Of The Literature ◽  
Resonance Imaging ◽  
Content Type ◽  
Left Lateral Ventricle ◽  
The Right ◽  
Choroid Plexus Papillomas ◽  
Fine Print

✓ Except for villous hypertrophy of the choroid plexus that may not be true tumors, multiple choroid plexus papillomas are extremely rare. The authors report a case involving multiple choroid plexus papillomas that were distinct from villous hypertrophy. These lesions were localized, one in the atrium of the right lateral ventricle and the other in the inferior horn of the left lateral ventricle. A review of the literature revealed that this case represented the first reported case of true multiple choroid plexus papillomas documented by findings on magnetic resonance imaging.

scholarly journals Malignant peripheral nerve sheath tumor of the distal phalanx of the fifth toe: a case report

2014 ◽  
Vol 3 (1) ◽  
pp. 204798161351603 ◽  
Author(s):  
Yuki Iwama ◽  
Makoto Kunisada ◽  
Hajimu Goto ◽  
Yoshiharu Ohno ◽  
Junji Yamashita ◽  
...  
Keyword(s):  
Peripheral Nerve ◽  
Distal Phalanx ◽  
Nerve Sheath Tumor ◽  
Resonance Imaging ◽  
Peripheral Nerve Sheath Tumor ◽  
Histological Features ◽  
Nerve Sheath ◽  
Subcutaneous Tissues ◽  
Fifth Toe ◽  
The Right

Malignant peripheral nerve sheath tumor (MPNST) involving bone is rare. We report a case of MPNST of the fifth toe. The lesion was located in the distal phalanx of the right fifth toe and extended into surrounding subcutaneous tissues. Findings on magnetic resonance imaging and histological features of the case are described and the literature is briefly reviewed.

Giant lateral sinus pericranii

1998 ◽  
Vol 88 (1) ◽  
pp. 145-147 ◽  
Author(s):  
Sergey Spektor ◽  
Gerald Weinberger ◽  
Shlomo Constantini ◽  
John M. Gomori ◽  
Liana Beni-Adani
Keyword(s):  
Magnetic Resonance Imaging ◽  
Early Childhood ◽  
Magnetic Resonance ◽  
Diagnostic Tests ◽  
Lateral Sinus ◽  
Resonance Imaging ◽  
Content Type ◽  
Sinus Pericranii ◽  
Tomography Scanning ◽  
Fine Print

✓ A case of giant lateral sinus pericranii, which presented in a patient during early childhood as a soft, collapsible mass and gradually grew until it reached 13 × 9 cm when the patient was 36 years of age, is reported. The patient underwent successful surgery and the lesion was totally excised. The results of diagnostic tests (computerized tomography scanning, magnetic resonance imaging, cerebral angiography, and sinusography) and surgery-related problems are presented and discussed.

scholarly journals First documented case of intracranial falcine malignant peripheral nerve sheath tumor: illustrative case

2021 ◽  
Vol 2 (6) ◽  
Author(s):  
Renato J. Galzio ◽  
Mattia Del Maestro ◽  
Diamantoula Pagkou ◽  
Massimo Caulo ◽  
Sofia Asioli ◽  
...  
Keyword(s):  
Peripheral Nerve ◽  
Cranial Nerves ◽  
Illustrative Case ◽  
Nerve Sheath Tumor ◽  
Falx Cerebri ◽  
Peripheral Nerve Sheath Tumor ◽  
Documented Case ◽  
Nerve Sheath ◽  
First Case ◽  
The Right

BACKGROUND The authors reported the first documented case of intracranial extraaxial nonneurofibromatosis type 1–related nontriton malignant peripheral nerve sheath tumor (MPNST) originating from the falx cerebri. OBSERVATIONS A 34-year-old man with headache, short-term memory deficit, postural instability, and blurred vision presented with a large heterogenous contrast-enhanced intraventricular cystic lesion originating from the free margin of the falx cerebri. The patient received surgery using the right posterior interhemispheric approach. Gross total resection was performed, and the inferior border of the falx cerebri was resected. The postoperative course was uneventful. Histological examination revealed hypercellular foci of neoplastic spindle cells with hyperchromatic and wavy nuclei. Hence, a diagnosis of MPNST was made based on concomitant immunochemistry findings, including mouse double minute 2 homolog focal positivity and geographic loss of H3K27me3. The patient received adjuvant radiotherapy, and recurrence was not observed. LESSONS Intracranial MPNSTs are extremely rare tumors, typically originating from the cranial nerves in the posterior cranial fossa. An even rarer variant of these tumors, referred to as malignant intracerebral nerve sheath tumors, may directly arise from the brain parenchyma. The authors reported the first case of an intracranial MPNST originating from the dura mater of the falx cerebri, acting as an extraaxial lesion with prevalent expansion in the right ventricle.

scholarly journals Cervical Intramedullary Schwannoma with Syrinx: Case Report and Review of the Literature

2017 ◽  
Vol 07 (03) ◽  
pp. 239-248
Author(s):  
Abdulaziz AlQarni ◽  
A. AlArifi ◽  
Ali Alassiri ◽  
Amjed Kouli ◽  
M. Abbas
Keyword(s):  
Spinal Cord ◽  
Cervical Spinal Cord ◽  
Lower Limbs ◽  
Nerve Sheath Tumor ◽  
Resonance Imaging ◽  
Spinal Cord Tumors ◽  
Nerve Sheath ◽  
Spindle Cells ◽  
The Right ◽  
Intramedullary Schwannoma

AbstractSchwannoma is a nerve sheath tumor originating from the Schwann cell. It is benign in nature and it arises from anywhere where Schwann cells can be found. It is rarely found in the parenchyma of the spinal cord. Intramedullary schwannomas (or neurilemmomas) without evidence of neurofibromatosis are rare spinal cord tumors. Intramedullary schwannoma was first reported in 1932 by Penfield. Our patient presented with neck pain, gradually worsening, weakness in the right upper and lower limbs, numbness in both shoulders, and a decrease in the grasping strength of both hands over a 4-year period. A magnetic resonance imaging of the spine showed a heterogeneously enhancing mass in the cervical spinal cord extending from the C2 to T1 levels with associated hemorrhagic changes. Histologically, the tumor was found to be composed of bland spindle cells with blunt-ended and sometimes wavy nuclei admixed with hyalinized vasculature. Surrounding reactive spinal cord parenchyma with frequent Rosenthal fibers was also observed. Focal Verocay bodies were evident, and with immunohistochemistry, there was diffuse and strong positivity for S100, which is confirmatory for the diagnosis of schwannoma. We report a case of cervical intramedullary schwannoma presented with syringobulbia in a young adult.

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