Giant serpentine aneurysm

1977 ◽  
Vol 46 (1) ◽  
pp. 115-120 ◽  
Author(s):  
Harold D. Segal ◽  
Robert L. McLaurin
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Mass Effect ◽  
Clinical Results ◽  
Avascular Area ◽  
Content Type ◽  
Serpentine Aneurysm ◽  
Middle Cerebral Artery Aneurysms ◽  
Mass Lesions ◽  
Fine Print

✓ The authors describe two cases of giant middle cerebral artery aneurysms presenting as mass lesions. Angiograms in each case revealed a distinctive serpentine vascular channel surrounded by an avascular area causing a “mass effect.” Both lesions were resected in toto with excellent clinical results. Similar lesions in the literature are noted and the pathophysiology and origin of this group of aneurysms are discussed.

Spontaneous fusiform middle cerebral artery aneurysms: characteristics and a proposed mechanism of formation

2003 ◽  
Vol 99 (2) ◽  
pp. 228-240 ◽  
Author(s):  
Arthur L. Day ◽  
Christopher G. Gaposchkin ◽  
Chun Jiang Yu ◽  
Dennis J. Rivet ◽  
Ralph G. Dacey
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Mass Effect ◽  
Female Ratio ◽  
Content Type ◽  
Morphological Findings ◽  
Male Female Ratio ◽  
Analysis Of Results ◽  
Middle Cerebral Artery Aneurysms ◽  
Fine Print

Object. The goal of this study was to identify the origins of spontaneous fusiform middle cerebral artery (MCA) aneurysms. Methods. One hundred two cases of spontaneous fusiform MCA aneurysms were reviewed, including 40 from the authors' institutions and 62 identified from the literature. The mean age at symptom onset was 38 years, and the male/female ratio was 1.4:1. At presentation, the MCA lumen was stenosed or occluded in 12 patients, focally dilated in 57, and appeared “serpentine” in 33. Most lesions originated from the M1 or M2 segments, and most (80%) presented with nonhemorrhagic symptoms or were discovered incidentally. The presenting clinical features correlated with morphological findings in the aneurysms, which could be observed to progress from a small focal dilation or vessel narrowing to a serpentine channel. Hemorrhage was the most common presentation in small lesions; the incidence of bleeding progressively diminished with larger lesions. Patients with stenoses or occluded vessels most often presented with ischemic symptoms, and occasionally with hemorrhage. Giant focal dilations or serpentine aneurysms were rarely associated with acute bleeding; clinical presentation was most often prompted by mass effect or thromboembolic stroke. Conclusions. Analysis of results after various treatments indicates that for symptomatic lesions, therapies that reverse intraaneurysmal blood flow and augment distal cerebral perfusion are associated with better outcomes than other strategies, including conservative management. Based on the spectrum of clinical, pathological, neuroimaging, and intraoperative findings, dissection is proposed as the underlying cause of these lesions.

Ruptured aneurysms of the proximal middle cerebral artery

1973 ◽  
Vol 39 (4) ◽  
pp. 498-502 ◽  
Author(s):  
Matej Lipovšek
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Bed Rest ◽  
Content Type ◽  
Ruptured Aneurysms ◽  
Carotid Ligation ◽  
Angiographic Evidence ◽  
Proximal Middle Cerebral Artery ◽  
Middle Cerebral Artery Aneurysms ◽  
Fine Print

✓ In 57 patients with proximal middle cerebral artery aneurysms, two forms of treatment are reviewed, namely, bed rest and common carotid ligation. Patients who had no angiographic evidence of spasm or accompanying hematoma did better with carotid ligation than with bed rest if they were treated within the first week of the onset of subarachnoid hemorrhage.

Subarachnoid hemorrhage secondary to ruptured aneurysms in infants

1978 ◽  
Vol 49 (6) ◽  
pp. 898-902 ◽  
Author(s):  
Marshall L. Grode ◽  
Myles Saunders ◽  
Charles A. Carton
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Case Histories ◽  
Content Type ◽  
Ruptured Aneurysms ◽  
Detailed Case ◽  
Subarachnoid Bleeding ◽  
Middle Cerebral Artery Aneurysms ◽  
Fine Print

✓ Two infants with subarachnoid bleeding from middle cerebral artery aneurysms are presented, with detailed case histories.

Surgical treatment of middle cerebral artery aneurysms

1984 ◽  
Vol 61 (1) ◽  
pp. 17-23 ◽  
Author(s):  
Jiro Suzuki ◽  
Takashi Yoshimoto ◽  
Takamasa Kayama
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Surrounding Tissue ◽  
Surgical Results ◽  
Content Type ◽  
Aneurysm Neck ◽  
Social Lives ◽  
Middle Cerebral Artery Aneurysms ◽  
Fine Print

✓ The authors report their experience with the surgical therapy of middle cerebral artery (MCA) aneurysms in 413 cases, and describe their technique. After the M1 portion of the MCA is identified, the Sylvian fissure is opened. During the administration of 20% mannitol, temporary occluding clips are applied to the feeding and draining vessels of the aneurysm. The aneurysm is freed from all surrounding tissue, and the aneurysm neck is treated by ligation, clipping, or wrapping. Analysis of surgical results in 91 cases operated on after the surgical approach had become standardized indicates that more than 94% of patients have returned to useful social lives by the time of follow-up evaluation. Twenty-four percent of these patients were operated on within 48 hours after subarachnoid hemorrhage.

Middle meningeal to middle cerebral arterial bypass for cerebral revascularization

1979 ◽  
Vol 50 (6) ◽  
pp. 802-804 ◽  
Author(s):  
Clinton F. Miller ◽  
Robert F. Spetzler ◽  
Dennis J. Kopaniky
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Middle Meningeal Artery ◽  
Cerebral Revascularization ◽  
Content Type ◽  
Arterial Bypass ◽  
Meningeal Artery ◽  
Fine Print

✓ A case is reported of successful anastomosis of the middle meningeal artery to a cortical branch of the middle cerebral artery. Based on the analyses of 50 random angiograms, the authors discuss the circumstances in which such an anastomosis might be practical and indicated.

Posttraumatic bilateral middle cerebral artery occlusion

1975 ◽  
Vol 42 (2) ◽  
pp. 217-221 ◽  
Author(s):  
Skip Jacques ◽  
C. Hunter Shelden ◽  
D. Thomas Rogers ◽  
Anthony C. Trippi
Keyword(s):  
Middle Cerebral Artery ◽  
Middle Cerebral Artery Occlusion ◽  
Cerebral Artery ◽  
Artery Occlusion ◽  
Content Type ◽  
Pathophysiological Mechanisms ◽  
Cerebral Artery Occlusion ◽  
Fine Print

✓ The authors report a case of bilateral posttraumatic middle cerebral artery occlusion. Previously reported unilateral cases are reviewed and possible pathophysiological mechanisms disscussed.

Multiple middle cerebral artery aneurysms in an infant

1990 ◽  
Vol 72 (5) ◽  
pp. 806-809 ◽  
Author(s):  
Cornelia Cedzich ◽  
J. Schramm ◽  
G. Röckelein
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Systemic Disease ◽  
Intracerebral Hematoma ◽  
Left Middle Cerebral Artery ◽  
Content Type ◽  
Middle Cerebral Artery Aneurysms ◽  
Subarachnoid Blood ◽  
Left Middle ◽  
Control Angiography

✓ An 11-month-old boy was admitted for evaluation of drowsiness, vomiting, and convulsions. Computerized tomography showed subarachnoid blood in the left sylvian fissure and a small intracerebral hematoma in the temporal lobe. Angiography revealed several aneurysms of the left middle cerebral artery (MCA). During surgery, 13 aneurysms were found arising from one main branch of the left MCA, and this segment of the MCA was trapped. Somatosensory evoked potentials did not show any change during surgery. The diseased arterial segment was examined histologically and the pathogenetic aspects of the case are discussed. Control angiography 6 months later excluded systemic disease or other aneurysms. The rarity of such lesions in childhood and their successful surgical treatment are discussed briefly.

Angiographic extravasation of contrast medium in acute traumatic subdural hematoma from arterial rupture

1972 ◽  
Vol 37 (2) ◽  
pp. 226-228 ◽  
Author(s):  
Jusuke Ito ◽  
Komei Ueki ◽  
Hisayuki Ishikawa
Keyword(s):  
Contrast Medium ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Subdural Hematoma ◽  
Carotid Angiography ◽  
Content Type ◽  
Arterial Rupture ◽  
Visual Evidence ◽  
Subpial Hemorrhage ◽  
Fine Print

✓ Carotid angiography of a patient with suspected subdural hematoma showed extravasation of the contrast medium from an ascending branch of the middle cerebral artery. The leak was verified at operation. There was no visual evidence of an aneurysm, angioma, subarachnoid or subpial hemorrhage.

Delayed breaking of a Heifetz aneurysm clip

1977 ◽  
Vol 47 (3) ◽  
pp. 463-465 ◽  
Author(s):  
Antti Servo ◽  
Matti Puranen
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Left Middle Cerebral Artery ◽  
Carotid Angiography ◽  
Content Type ◽  
Aneurysm Clip ◽  
Correct Placement ◽  
Left Middle ◽  
Fine Print

✓ An aneurysm of the left middle cerebral artery was treated by clipping with a Heifetz clip. The correct placement was confirmed angiographically immediately after the operation. At carotid angiography 1 year later the clip was found to have broken, and the aneurysm had increased in size.

The perforating branches of the middle cerebral artery

1985 ◽  
Vol 62 (2) ◽  
pp. 261-268 ◽  
Author(s):  
Felix Umansky ◽  
Francisco B. Gomes ◽  
Manuel Dujovny ◽  
Fernando G. Diaz ◽  
James I. Ausman ◽  
...  
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Interventional Neuroradiology ◽  
Great Majority ◽  
Outer Diameter ◽  
Main Trunk ◽  
Content Type ◽  
Brain Hemispheres ◽  
Medial Group ◽  
Fine Print

✓ The perforating branches (PFB's) of the middle cerebral artery (MCA) were studied in 34 unfixed brain hemispheres which were injected with a polyester resin and dissected under the operating microscope. Five hundred and eight vessels were identified and their site of origin, branching pattern, outer diameter (OD), and length recorded. Four hundred and two PFB's (79%) originated from the main trunk of the MCA before its division; the remaining 106 vessels (21%) had their origin from branches of the MCA as follows: superior trunk, 43 vessels (8.5%); inferior trunk, 30 vessels (6%); middle trunk, four vessels (0.8%); early temporal branch, 27 vessels (5.3%); and early frontal branch, two vessels (0.4%). The number of PFB's in each hemisphere varied from five to 29 (mean 14.9 ± 0.7 vessels). The great majority of PFB's (96%) originated along the proximal 17 mm of the MCA. The PFB's arising in the first 10 mm had a mean OD of 0.35 ± 0.01 mm and a mean length of 9.25 ± 0.19 mm, and those arising from the second 10 mm had a mean OD of 0.47 ± 0.02 mm and a mean length of 16.67 ± 1.4 mm. A clear distinction between a medial and lateral group of PFB's was present in only 14 hemispheres (41%). In nine hemispheres (26%), perforating vessels from the anterior cerebral artery (A1 segment) and from the recurrent artery of Heubner replaced the medial group of PFB's of the MCA. In one case this group originated in an accessory MCA. In three hemispheres (9%) a small anastomosis (OD 0.2 mm) was seen between a PFB of the recurrent artery of Heubner and one of the MCA. From a total of 508 PFB's, 255 vessels (50%) originated as single vessels, while 253 vessels (50%) originated as branches of common stems. The OD of the single vessels ranged from 0.1 mm to 1.1 mm (mean 0.39 ± 0.02 mm), and the length from 3 to 20 mm (mean 10.8 ± 0.2 mm). The common stems ranged in OD from 0.6 to 1.8 mm (mean 0.87 ± 0.04 mm), and in length from 1 to 15 mm (mean 4.1 ± 0.4 mm). The clinical application of these anatomical data to the management of aneurysms and arteriovenous malformations of the MCA, and in the field of interventional neuroradiology is described. The most frequent pathological entities involving the perforating vessels are also discussed.

Sign in / Sign up

Export Citation Format

Share Document