Duplicated Middle Cerebral Artery Aneurysms Treated by Coil Embolization; A Report of Two Cases and Literature Review

Fujimoto, Kenta; Hashimoto, Hiroyuki; Uchiyama, Yoshitomo; Maekawa, Hidetsugu; Shida, Yasuaki; Nakagawa, Ichiro

doi:10.1016/j.jstrokecerebrovasdis.2021.105773

Cited by 4 publications

(6 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A Type A DMCA arises from the top of the ICA, while a Type B DMCA originates from the ICA between the AChA and proximal portion of the ICA bifurcation ( 12 , 13 ). Most DMCA aneurysms are type B ( 5 , 14 ). To the best of our knowledge, 42 cases of DMCA aneurysms have been reported ( 4 , 5 , 15 – 21 ).…”

Section: Discussionmentioning

confidence: 99%

“…Most DMCA aneurysms are type B ( 5 , 14 ). To the best of our knowledge, 42 cases of DMCA aneurysms have been reported ( 4 , 5 , 15 – 21 ). Most of these aneurysms are IC-DMCA aneurysms of Type B DMCA.…”

Section: Discussionmentioning

confidence: 99%

“…A duplicated middle cerebral artery (DMCA) is a normal variation of the middle cerebral artery (MCA), in which the MCA originates between the anterior choroidal artery (AChA) and the distal end of the internal carotid artery (ICA), and this passes into the sylvian fissure and perfuses part of the territory of the MCA (1,2). The treatment of aneurysms at the origin of the DMCA has been reported previously (3)(4)(5). When treating aneurysms arising from the origin of the DMCA, it is important to preserve the AChA which branches nearby.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Case Report: “Clipping” an Internal Carotid Artery Aneurysm With a Duplicated Middle Cerebral Artery and the Anterior Choroidal Artery Arising From the Dome

et al. 2022

View full text Add to dashboard Cite

BackgroundA duplicated middle cerebral artery (DMCA) is an anatomical variant that includes duplication of the middle cerebral artery (MCA) and an anomalous vessel originating between the anterior choroidal artery (AChA) and the distal end of the internal carotid artery (ICA). Here, we present a case report of an ICA aneurysm with a DMCA and the AChA originating from the dome, which was successfully treated with clipping.Case DescriptionIn a 64-year-old man, preoperative angiography revealed an unruptured right ICA aneurysm with a maximum diameter of 4.3 mm, and fusion three-dimensional computer graphics revealed that a DMCA and the AChA originated from the dome. The aneurysm enlarged; therefore, clipping was performed. The closure of the aneurysm while preserving the patency of the DMCA and AChA was identified using intraoperative microvascular Doppler ultrasonography and indocyanine green video angiography. The postoperative course was uneventful, and no ischemic lesions were confirmed on MR imaging.ConclusionTo the best of our knowledge, this is the first report of an ICA aneurysm with a DMCA and the AChA arising from the dome. In such cases, the anatomy of the DMCA and AChA should be well-characterized before treatment.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Case Report: “Clipping” an Internal Carotid Artery Aneurysm With a Duplicated Middle Cerebral Artery and the Anterior Choroidal Artery Arising From the Dome

et al. 2022

View full text Add to dashboard Cite

show abstract

“…[5,8] Intracranial aneurysms associated with DMCA and their treatment have been reported previously. [1,4,7,9] Since the origin of DMCAs is close to that of the anterior choroidal artery, it might be occasionally difficult to distinguish them; however, given that they follow a different course after the origin, identifying them may not be difficult by careful observation. [1,2] Short M1 segments are defined as M1s with a length of ≤15 mm.…”

mentioning

confidence: 99%

“…[1,4,7,9] Since the origin of DMCAs is close to that of the anterior choroidal artery, it might be occasionally difficult to distinguish them; however, given that they follow a different course after the origin, identifying them may not be difficult by careful observation. [1,2] Short M1 segments are defined as M1s with a length of ≤15 mm. [3] In the clipping surgery for aneurysms with a short M1 segment, as the MCA bifurcation is located deeper than the limen insulae, the visibility of the aneurysm neck is obstructed by the limen insulae.…”

mentioning

confidence: 99%

Unruptured aneurysm at bifurcation of super short middle cerebral artery mimicking duplicated middle cerebral artery aneurysm

Michiwaki¹,

Kawashima²,

Tanaka³

et al. 2022

Surgical Neurology International

View full text Add to dashboard Cite

Background: Duplicated middle cerebral artery (DMCA) is a normal variation of the middle cerebral artery (MCA), and distinguishing DMCA from other arteries based only on the angiographical findings is sometimes difficult. Case Description: Preoperative angiography of a 60-year-old woman revealed two MCAs originating near the top of the right internal carotid artery and a 6-mm-sized aneurysm located between these two MCAs. The ipsilateral A1 segment of the anterior cerebral artery was not visualized due to hypoplasia. The patient was diagnosed with an unruptured aneurysm at the bifurcation between MCA and DMCA, preoperatively. However, during clipping surgery, the hypoplastic A1 segment was observed at approximately 2 mm proximal to the bifurcation of the MCA, indicating that these two MCAs were not “true” MCA and DMCA, but rather two normal MCA trunks bifurcated from the very short prebifurcation segment of M1. This difference in interpretation was due to the fact that the hypoplastic A1 was not visualized on preoperative examinations. The patient was discharged following the surgery without any neurological deficits. Conclusion: The distinction between DMCA and MCA trunks from the very short prebifurcation segment of MCA might be difficult, especially when the ipsilateral A1 segment is hypoplastic. Such an M1 with a length of 2–3 mm might be named super short M1. Thus, it is necessary to confirm the anatomy during aneurysm surgery.

show abstract

Variations of the Proximal Middle Cerebral Artery (MCA)

Uchino

2021

Atlas of the Supraaortic Craniocervical Arterial Variations

View full text Add to dashboard Cite

Duplicated Middle Cerebral Artery Aneurysms Treated by Coil Embolization; A Report of Two Cases and Literature Review

Cited by 4 publications

References 27 publications

Case Report: “Clipping” an Internal Carotid Artery Aneurysm With a Duplicated Middle Cerebral Artery and the Anterior Choroidal Artery Arising From the Dome

Case Report: “Clipping” an Internal Carotid Artery Aneurysm With a Duplicated Middle Cerebral Artery and the Anterior Choroidal Artery Arising From the Dome

Unruptured aneurysm at bifurcation of super short middle cerebral artery mimicking duplicated middle cerebral artery aneurysm

Variations of the Proximal Middle Cerebral Artery (MCA)

Contact Info

Product

Resources

About