scholarly journals Giant nontraumatic intradiploic arachnoid cyst in a young male

2016 ◽  
Vol 49 (5) ◽  
pp. 337-339 ◽  
Author(s):  
Rajesh Sharma ◽  
Puneet Gupta ◽  
Manik Mahajan ◽  
Poonam Sharma ◽  
Anchal Gupta ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Arachnoid Cyst ◽  
Young Male ◽  
Arachnoid Cysts ◽  
X Rays ◽  
Occipital Region ◽  
Resonance Imaging ◽  
Computed Tomography Scans ◽  
Intradiploic Arachnoid Cyst ◽  
Growing Mass

Abstract Intradiploic arachnoid cysts have scarcely been reported in the literature, most reported cases being secondary to trauma. Nontraumatic arachnoid cysts are quite rare and have been reported mostly in adults. Here, we report the case of a 16-year-old male presenting with a slowly growing mass in the occipital region and intermittent headaches. On the basis of the findings of X-rays, computed tomography scans, and magnetic resonance imaging scans of the head, the mass was diagnosed as a giant intradiploic arachnoid cyst.

Active spontaneous decompression of a suprasellar-prepontine arachnoid cyst detected with routine magnetic resonance imaging

2009 ◽  
Vol 3 (1) ◽  
pp. 70-72 ◽  
Author(s):  
Bradley P. Thomas ◽  
Matthew M. Pearson ◽  
Curtis A. Wushensky
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Arachnoid Cyst ◽  
Male Infant ◽  
Ventricular System ◽  
Arachnoid Cysts ◽  
Resonance Imaging ◽  
Csf Flow ◽  
Routine Magnetic Resonance Imaging

Arachnoid cysts are congenital CSF collections that arise adjacent to arachnoid cisterns. These lesions can be incidental neuroimaging findings but may also cause symptoms and necessitate treatment, particularly in children. The authors present their experience with a male infant harboring a large suprasellar-prepontine arachnoid cyst who underwent spontaneous decompression into the ventricular system, as evidenced by a visualized CSF flow jet observed on routine MR imaging.

Arachnoid cysts on magnetic resonance imaging: just an incidental finding?

2020 ◽  
Vol 134 (5) ◽  
pp. 424-430 ◽  
Author(s):  
L Li ◽  
F Begbie ◽  
N Grimmond ◽  
G Kontorinis
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Clinical Significance ◽  
Arachnoid Cyst ◽  
Incidental Finding ◽  
Arachnoid Cysts ◽  
Resonance Imaging ◽  
Age And Gender ◽  
And Gender ◽  
Repeat Imaging

AbstractObjectiveTo determine the clinical significance of arachnoid cysts.MethodsThe scans of 6978 patients undergoing magnetic resonance imaging of the internal acoustic meatus for unilateral cochleovestibular symptoms were retrospectively reviewed. We identified the scans with arachnoid cysts, and assessed the statistical associations between the laterality, location and size of the arachnoid cyst, the laterality of symptoms, the patients’ age and gender.ResultsIn a total of 37 arachnoid cysts identified in 36 patients (0.5 per cent), no associations were identified between the laterality of symptoms and the laterality of the arachnoid cyst, regardless of its size or location. There were no significant associations between the location of the arachnoid cyst and the age (p = 0.99) or gender of the patient (p = 0.13), or size (p = 0.656) or side of the cyst (p = 0.61). None of the cysts with repeat imaging scans (17 cysts) demonstrated growth.ConclusionOur results suggest that most, if not all, arachnoid cysts are of no clinical significance. Given their indolent behaviour, even serial imaging is not essential.

INTRASELLAR ARACHNOID CYSTS

Neurosurgery ◽  
2007 ◽  
Vol 61 (3) ◽  
pp. 505-513 ◽  
Author(s):  
Annie S. Dubuisson ◽  
Achille Stevenaert ◽  
Didier H. Martin ◽  
Pierre P. Flandroy
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Arachnoid Cyst ◽  
Water Soluble ◽  
Arachnoid Cysts ◽  
Resonance Imaging ◽  
Rapid Weight Gain ◽  
Presenting Symptoms ◽  
Subarachnoid Spaces ◽  
Suprasellar Extension

Abstract OBJECTIVE To evaluate the clinical, endocrinological, and radiological presentation of nine cases of surgically verified intrasellar arachnoid cysts and to discuss the physiopathological mechanisms of formation of these cysts. METHODS Among 1540 patients presenting with pituitary lesions, nine presented with an intrasellar arachnoid cyst. Their charts were retrospectively reviewed. RESULTS Presenting symptoms included headache (n = 2), visual symptoms (n = 3), menstrual irregularities (n = 2), rapid weight gain (n = 1), vertigo (n = 1), and/or confusion (n = 1). Two cysts were discovered incidentally. T1-weighted magnetic resonance imaging scans showed an intrasellar cystic lesion in all cases, with a huge suprasellar extension in six cases. The cyst was of the same intensity as the cerebrospinal fluid (CSF) in only two patients. A transsphenoidal approach allowed the transdural aspiration of fluid and injection of a water-soluble contrast agent under mild pressure. In three patients, the contrast infiltrated along the pituitary stalk toward the subarachnoid spaces; in the other patients, it remained in the intrasellar compartment. Cyst membranes were removed as completely as possible with fenestration toward the subarachnoid spaces in communicating cysts. In spite of tight packing of the sella and sphenoid sinus, CSF fistulae requiring reoperation developed in two patients. CONCLUSION The clinical picture of an intrasellar arachnoid cyst resembles that of a nonfunctional pituitary adenoma. Magnetic resonance imaging scans typically show a cystic intrasellar lesion with suprasellar extension, containing isointense or, more often, hyperintense fluid on T1-weighted sequences. In spite of the risk of CSF fistulae, the preferred surgical approach is transsphenoidal. A physiopathological mechanism is proposed according to anatomic variations of the sellar diaphragma allowing penetration of subarachnoid spaces into the sellar compartment and their enlargement by a ball-valve mechanism.

scholarly journals Arachnoid Cysts of the Internal Auditory Canal: Multiplanar Magnetic Resonance Imaging With Audio‐Vestibular Correlates

2021 ◽  
Author(s):  
Arianna Di Stadio ◽  
Laura Dipietro ◽  
Daniela Messineo ◽  
Massimo Ralli ◽  
Giampietro Ricci ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Internal Auditory Canal ◽  
Arachnoid Cysts ◽  
Resonance Imaging

scholarly journals Spine and sacroiliac joints on magnetic resonance imaging in patients with early axial spondyloarthritis: prevalence of lesions and association with clinical and disease activity indices from the Italian group of the SPACE study

Reumatismo ◽  
2016 ◽  
Vol 68 (2) ◽  
pp. 72 ◽  
Author(s):  
M. Lorenzin ◽  
A. Ortolan ◽  
P. Frallonardo ◽  
S. Vio ◽  
C. Lacognata ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Disease Activity ◽  
Axial Spondyloarthritis ◽  
X Rays ◽  
Resonance Imaging ◽  
Diagnostic Significance ◽  
Significant Difference ◽  
Spine Mri ◽  
Activity Indices

Our aim was to determine the prevalence of spine and sacroiliac joint (SIJ) lesions on magnetic resonance imaging (MRI) in patients with early axial spondyloarthritis (axSpA) and their correlation with disease activity indices. Sixty patients with low back pain (LBP) (≥3 months, ≤2 years, onset ≤45 years), attending the SpA-clinic of the Unità Operativa Complessa Reumatologia of Padova [SpondyloArthritis-Caught-Early (SPACE) study], were studied following a protocol including physical examination, questionnaires, laboratory tests, X-rays and spine and SIJ MRI. Positive spine and SIJ MRI and X-rays images were scored independently by 2 readers using the SPARCC method, modified Stoke ankylosing spondylitis spine score and New York criteria. The axial pain and localization of MRI-lesions were referred to 4 sites: cervical/thoracic/lumbar spine and SIJ. All patients were classified into three groups: patients with signs of radiographic sacroiliitis (r-axSpA), patients without signs of r-axSpA but with signs of sacroiliitis on MRI (nr-axSpA MRI SIJ+), patients without signs of sacroiliitis on MRI and X-rays (nr-axSpA MRI SIJ-). The median age at LBP onset was 29.05±8.38 years; 51.6% of patients showed bone marrow edema (BME) in spine-MRI and 56.7% of patients in SIJ-MRI. Signs of enthesitis were found in 55% of patients in the thoracic district. Of the 55% of patients with BME on spine-MRI, 15% presented presented a negative SIJMRI. There was a significant difference between these cohorts with regard to the prevalence of radiographic sacroiliitis, active sacroiliitis on MRI and SPARCC SIJ score. The site of pain correlated statistically with BME lesions in thoracic and buttock districts. Since positive spine-MRI images were observed in absence of sacroiliitis, we can hypothesize that this finding could have a diagnostic significance in axSpA suspected axSpA.

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