scholarly journals Meningioma of the posterior cranial fossa with obstructive hydrocephalus

2021 ◽  
Author(s):  
Ammar Haouimi
Keyword(s):  
Obstructive Hydrocephalus ◽  
Posterior Cranial Fossa ◽  
Cranial Fossa

Assessment of Cognitive Function Before and After Surgery for Posterior Cranial Fossa Lesions

Skull Base ◽  
2009 ◽  
Vol 19 (03) ◽  
Author(s):  
Shinya Ishimura ◽  
Takayuki Ohira ◽  
Masahito Kobayashi ◽  
Tadashige Kano ◽  
Maaya Orii ◽  
...  
Keyword(s):  
Cognitive Function ◽  
Posterior Cranial Fossa ◽  
Before And After ◽  
Cranial Fossa

Traumatic Epidural Hematomas of the Posterior Cranial Fossa

Skull Base ◽  
2009 ◽  
Vol 19 (S 02) ◽  
Author(s):  
N. Syrmos ◽  
Ch. Iliadis ◽  
J. Marakomichelakis ◽  
G. Gavridakis ◽  
V. Valadakis ◽  
...  
Keyword(s):  
Posterior Cranial Fossa ◽  
Cranial Fossa

scholarly journals THE VEINS OF THE POSTERIOR CRANIAL FOSSA: AN ANGIOGRAPHIC STUDY UNDER PATHOLOGIC CONDITIONS

1970 ◽  
Vol 110 (1) ◽  
pp. 39-49 ◽  
Author(s):  
F. GALLIGIONI ◽  
R. BERNARDI ◽  
M. PELLONE ◽  
G. IRACI
Keyword(s):  
Posterior Cranial Fossa ◽  
Angiographic Study ◽  
Cranial Fossa

Extradural hematomas of the posterior cranial fossa

1989 ◽  
Vol 32 (4) ◽  
pp. 300-303 ◽  
Author(s):  
Eugenio Pozzati ◽  
Francesco Tognetti ◽  
Michele Cavallo ◽  
Nicola Acciarri
Keyword(s):  
Posterior Cranial Fossa ◽  
Cranial Fossa

Complete posterior cranial vault distraction osteogenesis to correct Chiari malformation type I associated with craniosynostosis

2021 ◽  
pp. 1-7
Keyword(s):  
Foramen Magnum ◽  
Posterior Cranial Fossa ◽  
Type I ◽  
Intracranial Volume ◽  
Tonsillar Herniation ◽  
Chiari Malformation Type I ◽  
Cerebellar Tonsillar Herniation ◽  
Cranial Fossa ◽  
The Mean ◽  
Tonsillar Descent

OBJECTIVE Posterior vault distraction osteogenesis (PVDO) is an effective tool to increase intracranial volume and expand the posterior cranial fossa. During PVDO, the authors extended osteotomy posterior to the foramen magnum to fully expand the posterior cranial fossa. The aim of this study was to investigate the efficacy of complete PVDO in posterior fossa expansion and treatment of Chiari malformation type I (CM-I) in patients with craniosynostosis. METHODS Patients with craniosynostosis who had undergone complete PVDO between January 2012 and May 2020 were reviewed retrospectively. A coronal osteotomy extending to the foramen magnum was performed and the foramen magnum was decompressed by removing its posterior rim with a 1-mm Kerrison rongeur. Four distractor devices were placed and the vector of distraction was controlled from the posterior to the inferior-posterior direction, depending on the deformity. Changes in the intracranial volume, posterior cranial fossa area, and cerebellar tonsillar descent were measured after complete PVDO by using CT and MRI. RESULTS A total of 11 patients with craniosynostosis and concurrent CM-I were included in the study. The mean age was 34.6 ± 24.0 months (continuous variables are expressed as the mean ± SD throughout). One patient had sleep apnea, which was consistent with CM-I, and another patient had a headache, which was nonspecific. The intracranial volume increased from 1179.6 ± 180.2 cm3 to 1440.6 ± 251.5 cm3 (p = 0.003; 24.5% increase compared to the preoperative volume). The posterior skull base area increased from 44.9 ± 19.3 cm2 to 72.7 ± 18.1 cm2 (p = 0.004). Cerebellar tonsillar descent decreased in all 11 patients after complete PVDO (preoperative: 10.8 ± 3.7 mm, postoperative: 2.7 ± 3.0 mm; p = 0.003). Among the 11 patients, 5 showed complete resolution of cerebellar tonsillar herniation. CONCLUSIONS Complete PVDO can more efficiently expand the posterior cranial fossa, unlike conventional methods. Moreover, it helps to relieve cerebellar tonsillar herniation. Complete PVDO is a powerful tool to increase the intracranial and posterior fossa volumes in patients with craniosynostosis and concurrent CM-I.

scholarly journals Meningioma in Lateral Cerebellomedullary Cistern without Dural Attachment

2017 ◽  
Vol 06 (02) ◽  
pp. 144-148
Author(s):  
Prithvi Varghese ◽  
Julio Kandathil ◽  
Jayasree Govindan ◽  
Rashmi R. ◽  
Muhammed Jalal
Keyword(s):  
Soft Tissue ◽  
Soft Tissue Mass ◽  
Imaging Modality ◽  
Posterior Cranial Fossa ◽  
Tissue Mass ◽  
Tela Choroidea ◽  
Dural Tail ◽  
Dural Attachment ◽  
Cranial Fossa ◽  
Space Occupying Lesion

AbstractIntracranial meningiomas without dural attachment are rare and posterior cranial fossa meningiomas without dural attachment are rarer. Such meningiomas are thought to arise from arachnoid cap cells in pial membrane, tela choroidea, or choroid plexus. MRI is the best imaging modality for the diagnosis of meningiomas and typically shows an enhancing, dural based, extra-axial soft tissue mass with a characteristic dural tail. Meningioma without dural attachment should be suspected if the MRI shows a space-occupying lesion having features of a meningioma but without a dural base and dural tail. We report a case of meningioma in the lateral cerebellomedullary cistern without dural attachment.

Sign in / Sign up

Export Citation Format

Share Document