Giant aneurysm associated with a large cyst

Hirota, Nobuo; Ueno, Junji; Naitoh, H; Sugiyama, Ken; Karasawa, Hideharu; Kin, Hiroshi; Hatayama, Kazumi; Matsumoto, Kiyoshi

doi:10.3171/jns.1999.91.1.0160

Cited by 19 publications

(17 citation statements)

References 4 publications

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“…Perianeurysmal cyst formation has also been seen in postendovascular-treated patients. 10,[14][15][16] In many patients, perianeurysmal cyst formation was associated with thrombosed aneurysm [6][7][8][9]13 which is present in our case as well.…”

Section: Discussionsupporting

confidence: 69%

Large Parenchymal Perianeurysmal Cyst: A Case Report

Birua

Tyagi

Beniwal

et al. 2021

J Neurosci Rural Pract

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Parenchymal perianeurysmal cysts are rare. We report a case of 50-year-old woman who presented with persistent headaches and episodes of vomiting for the last 2 months. Magnetic resonance imaging of the brain showed a well-defined solitary cystic lesion with a mural nodule measuring 5.4 × 5.2 × 4.6 cm in the right basifrontal region. The mural nodule was cortically based. It was hypointense on T2-weighted fluid-attenuated inversion recovery and showed intense contrast enhancement with few nonenhancing areas—no evidence of diffusion restriction. The cyst wall was nonenhancing, and magnetic resonance angiogram was unremarkable. Differential diagnoses included intra-axial gliomas such as ganglioglioma and pleomorphic xanthoastrocytoma. Right pterional craniotomy and a transcortical approach were made. Subtotal excision of cyst and clipping of right middle cerebral artery bifurcation thrombosed aneurysm were done. After 6 months of follow-up, patient is stable without any deficits. A parenchymal perianeurysmal cyst is a rare entity; it is crucial to be considered a differential diagnosis in any cystic lesion with the mural nodule.

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Section: Discussionsupporting

confidence: 69%

Large Parenchymal Perianeurysmal Cyst: A Case Report

Birua

Tyagi

Beniwal

et al. 2021

J Neurosci Rural Pract

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“…In a review of the available literature, we found that six of 15 cases reported involved female patients (Table 1). 3,4,[11][12][13][14]20,26,31,35 Symptoms typically included headache, nausea, and vomiting. Most arachnoid cysts were found in the anterior half of the middle cranial fossa.…”

Section: Discussionmentioning

confidence: 99%

“…4,13 Authors of three cases noted xanthochromic fluid on surgically opening the cyst. 12,20,35 In the case described by Marcoux et al, 20 a cyst had formed 17 months after an SAH and embolization of an ACA aneurysm. These authors ascribed this acquired arachnoid cyst to a postinflammatory process.…”

Section: Discussionmentioning

confidence: 99%

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Association between an arachnoid cyst and intracranial aneurysms misdiagnosed as a cystic tumor with a mural nodule

Chhabra¹,

Zhang²,

Olson³

2007

FOC

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✓The authors report on a 63-year-old man initially admitted to an outside hospital for altered mental status and respiratory distress. A head computed tomography scan disclosed a right frontal cystic mass, suspected to be a neoplasm. An open biopsy was performed at an outside institution, and on visualization of the cyst, an aneurysm was found incidentally. Postoperatively, an angiogram and magnetic resonance image confirmed the presence of a distal right M1 segment aneurysm. The patient was transferred to our institution where, in addition to the middle cerebral artery lesion, a right anterior choroidal artery aneurysm was found intraoperatively; the necks of both aneurysms were clipped successfully. A review of the literature revealed 14 additional cases of intracranial aneurysms associated with arachnoid cysts. Data in the present report highlight the importance of considering an intracystic aneurysm in the differential diagnosis when reviewing cases that involve a cystic mass with a mural nodule. The authors provide a comprehensive summary of documented cases of aneurysms associated with arachnoid cysts. In addition, they include a discussion of prevailing thoughts on the origin and evolution of arachnoid cysts.

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“…Fluid collection associated with dissecting aneurysms may be caused by exudate from the aneurysm, hematoma formation caused by the initial subarachnoid hemorrhage, or gradually enlarging infarction, perhaps due to pulsation of the aneurysm. 7,8) Subclinical aneurysmal parenchymal hemorrhage or exudation from an aneurysm wall might be a cause of fluid collection, with hemorrhage from neovascularized vessels in the capsule or osmotic effects acting as the mechanisms underlying growth. 8) In our case, the fluid collection was apparently formed by minor leakage and exudation of the intramural hemorrhage to the outer surface of the dissecting aneurysm, because MR imaging 4 days after the onset demonstrated infarction in the left temporo-parietal area and no fluid collection, but demonstrated the fluid collection near the wall of the aneurysm and far from the infarct area 10 months after the onset, with no communication to the subarachnoid space.…”

Section: Discussionmentioning

confidence: 99%

Cerebral Infarction and Fluid Collection Due to an Enlarged Dissecting Aneurysm of the Middle Cerebral Artery-Case Report-

Iida

Kusumi

Sagiuchi

et al. 2004

Neurol. Med. Chir.(Tokyo)

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A 53-year-old man presented with cerebral infarction associated with a dissecting aneurysm of the left middle cerebral artery (MCA), with enlargement and fluid collection. Anticoagulant therapy was performed as the first stage treatment for cerebral infarction. Serial magnetic resonance imaging showed that the dissecting aneurysm had enlarged and fluid collection adjacent to the aneurysm had developed since the first admission. Surgery was performed to ligate the MCA proximal to the aneurysm. Intraoperative findings showed the branch of the MCA was obstructed by intramural hemorrhage of the aneurysm dome. Histological examination showed direct obstruction of the MCA branch artery by intramural hemorrhage of aneurysm dome had caused the cerebral infarction and the fluid collection surrounding the aneurysm resulted from minor leakage or exudation of intramural hemorrhage to the outer surface of the dissecting aneurysm.

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Giant aneurysm associated with a large cyst

Cited by 19 publications

References 4 publications

Large Parenchymal Perianeurysmal Cyst: A Case Report

Large Parenchymal Perianeurysmal Cyst: A Case Report

Association between an arachnoid cyst and intracranial aneurysms misdiagnosed as a cystic tumor with a mural nodule

Cerebral Infarction and Fluid Collection Due to an Enlarged Dissecting Aneurysm of the Middle Cerebral Artery-Case Report-

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