• Users Online: 96
  • Print this page
  • Email this page

 Table of Contents  
Year : 2020  |  Volume : 8  |  Issue : 2  |  Page : 134-136

Kissing aneurysms of the internal carotid artery

Department of Neurosurgery, Govind Ballabh Pant Institute of Medical Education and Research, New Delhi, India

Date of Submission23-Aug-2020
Date of Acceptance31-Aug-2020
Date of Web Publication3-Feb-2021

Correspondence Address:
Dr. Amit Kumar Sharma
Department of Neurosurgery, Govind Ballabh Pant Institute of Medical Education and Research, New Delhi
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcvs.jcvs_17_20

Rights and Permissions

Kissing aneurysms (KAs) are rare and cause various problems when clipping of these aneurysms is attempted because they often partially adhere to each other. A 65-year-old female presented with subarachnoid haemorrhage due to a ruptured aneurysm originating from the left internal carotid artery (ICA)-posterior communicating artery A. She also had an unruptured aneurysm arising from the bifurcation of a left ICA-anterior choroidal artery A. Intraoperative findings revealed that these were KAs. Surgical clipping was performed. The postoperative period was uneventful. In this case report, we would like to stress the rarity of KAs and the difficulty in the diagnosis and management of such cases.

Keywords: Anterior choroidal artery, internal carotid artery, kissing aneurysm, posterior communicating artery

How to cite this article:
Sharma AK, Jagetia A, Srivastava AK, Singh D. Kissing aneurysms of the internal carotid artery. J Cerebrovasc Sci 2020;8:134-6

How to cite this URL:
Sharma AK, Jagetia A, Srivastava AK, Singh D. Kissing aneurysms of the internal carotid artery. J Cerebrovasc Sci [serial online] 2020 [cited 2023 Feb 4];8:134-6. Available from: http://www.jcvs.in/text.asp?2020/8/2/134/308626

  Introduction Top

Kissing aneurysms (KAs) are caused when two aneurysms with different necks mutually contact each other, which was first reported by Jefferson in 1978.[1] In 1984, Yasargil[2] named these aneurysms KAs. They are relatively rare, earlier reported with an overall incidence of 0.2%–0.9% of all cerebral aneurysms, and it is observed that posterior communicating aneurysms and anterior choroidal aneurysms are the most common in reported literature.[2] As KAs occur in arteries with adherent walls, there is always a risk of it being misdiagnosed as a single aneurysm, resulting in a wrong treatment option, which could potentially lead to the subsequent intraprocedural rupture of the aneurysms.[3]

  Case Report Top

A 65-year-old female presented with sudden-onset severe headache and presented to our institute on day 2 of onset. There was no episode of altered consciousness and no motor weakness. Neurological evaluation at admission revealed a blood pressure of 145/92 mmHg, Hunt-Hess Grade-2, and the rest was unremarkable. Cranial computed tomography (CT) revealed subarachnoid haemorrhage (SAH) in the interhemispheric fissure, bilateral Sylvian fissure and basal cisterns [Figure 1]a, and cerebral CT angiography demonstrated a wide-neck bilobed aneurysm in the left internal carotid artery (ICA)-posterior communicating artery (Pcomm artery [Pcomm A] region directing posterolaterally) [Figure 1]b. The patient underwent left pterional craniotomy, and clipping of the aneurysm was done. The two aneurysms were seen arising from the lateral wall of the ICA just proximal to ICA bifurcation, with their neck adhered to each other; it was extremely difficult to dissect the space between them. These KAs consisted of an ICA-Pcomm A aneurysm and an ICA-anterior choroidal artery (ICA-Ach A) aneurysm [Figure 2]a and [Figure 2]b, and the ICA-Pcomm A aneurysm was appeared to have ruptured, as also shown in [Figure 3]. A single permanent clip was applied along the wall of the ICA to occlude the neck of both aneurysms. Both the Pcomm A and Ach A were secured.
Figure 1: (a) Non-contrast computed tomography brain showing blood in the interhemispheric fissure, bilateral Sylvian fissure and basal cistern. (b) Cerebral computed tomography angiogram brain showing a possible wide-neck, bilobed internal carotid artery-posterior communicating artery aneurysm

Click here to view
Figure 2: (a) Intraoperative image showing internal carotid artery-posterior communicating and internal carotid artery-anterior choroidal artery aneurysm with adjacent neck over the internal carotid artery. (b) Intraoperative image after clipping of aneurysm, both posterior communicating artery and anterior choroidal artery can be visualised

Click here to view
Figure 3: Schematic diagram showing the aneurysms with adherent neck wall

Click here to view

  Discussion Top

KAs are a rare type of multiple aneurysms that have been described in literature as two aneurysms which are anatomically adjacent but with separate origins and with partially adherent neck or wall at the site of origin.[1] In this case report, we aim to highlight the rarity of the KAs of this area. The ICA has been reported to be the most common site for KAs, but only few cases of ICA KAs, including the present case, have been reported since first described in literature.[1],[2],[4],[5],[6],[7],[8],[9] Second, there is difficulty in diagnosing these aneurysms preoperatively. As described in previous reports, it is not easy to diagnose these aneurysms preoperatively as they appear to be multiloculated angiographically. Therefore, the possibility of KAs must be considered in the case of aneurysm with wide neck and multiloculated, especially lobules at the junction of origin and parent artery.[1],[6],[10] In most cases, ICA-PcomA aneurysm is larger than the ICA-AchA aneurysm[4] and SAH is commonly due to the rupture of the former.[1] Our findings are consistent with those of the previous reports. In those reports, standard microsurgical clipping was used for all patients except one case for which endovascular management was used. The complicated anatomy of aneurysms and the perplexing anatomical relationship of these adjacent aneurysms and vessels often makes the diagnosis and treatment a challenge, especially for young neurosurgeons. Thus, describing this case again signifies the importance to discuss how to suspect these KAs, hence to prevent pre-mature intraoperative rupture during aneurysm dissection, and choosing appropriate treatment (microsurgical/endovascular) and how to clip and occlude the aneurysms completely without obliteration of the ICA, PcomA and AchA is of paramount importance for good outcome.

Declaration of patient consent

The authors certify that they have obtained all appropriate patient consent forms. In the form the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.

Financial support and sponsorship


Conflicts of interest

There are no conflicts of interest.

  References Top

Jefferson A. The significance for diagnosis and for surgical technique of multiple aneurysms of the same internal carotid artery. Acta Neurochir (Wien) 1978;41:23-37.  Back to cited text no. 1
Yasargil MG: Microneurosurgery: Clinical Considerations, Surgery of the Intracranial Aneurysms and Results (Microsurgical Anatomy of Basal Cisterns & Vessels of Brain) Vol. 2. Stuttgart, Germany: Thieme; 1984. p. 33-23.  Back to cited text no. 2
Choi CY, Han SR, Yee GT, Lee CH. Kissing aneurysms of the distal anterior cerebral artery. J Clin Neurosci 2011;18:260-2.  Back to cited text no. 3
Komiyama M, Yasui T, Tamura K, Nagata Y, Fu Y, Yagura H. “Kissing aneurysms” of the internal carotid artery. Neurol Med Chir (Tokyo) 1994;34:360-4.  Back to cited text no. 4
Sorimachi T, Fujii Y, Nashimoto T, Morita K. Kissing aneurysms at the junction of the internal carotid artery and the ipsilateral duplicate anterior choroidal arteries – Case report. Neurol Med Chir (Tokyo) 2006;46:29-31.  Back to cited text no. 5
Kanai H, Yamada K, Yamashita N, Masago A, Koide K, Niwa Y. Socalled kissing aneurysms on the same internal carotid artery: Report of two cases. Jpn J Neurosurg 1999;8:349-54.  Back to cited text no. 6
Sakakibara Y, Taguchi Y, Ide M, Oshio K, Hiramoto J, Onodera H. A case of ruptured internal carotid artery “kissing aneurysms”: Case report and review of the literature. No Shinkei Geka 2006;34:297-303.  Back to cited text no. 7
Shioya H, Kikuchi K, Suda Y, Shoji H, Shindo K. Ruptured internal carotid -posterior communicating artery aneurysm associated with an anomalous hyperplastic anterior choroidal artery and aneurysm: Case report. No Shinkei Geka 2005;33:155-62.  Back to cited text no. 8
Takahashi C, Kubo M, Okamoto S, Matsumura N, Horie Y, Hayashi N, et al. “Kissing” aneurysms of the internal carotid artery treated by coil embolization. Neurol Med Chir (Tokyo) 2011;51:653-6.  Back to cited text no. 9
Wanifuchi H, Tanikawa T, Iseki H, Muragaki Y, Ishizaki R, Takakura K. Kissing aneurysms between the internal carotid artery and the anterior communicating artery: A case report. Jpn J Neurosurg ( Tokyo )1998;7:694-8.  Back to cited text no. 10


  [Figure 1], [Figure 2], [Figure 3]

This article has been cited by
1 Kissing Aneurysms: Radiological and Surgical Difficulties in 30 Operated Cases and a Proposed Classification
Servet Inci,Dicle Karakaya
World Neurosurgery. 2021;
[Pubmed] | [DOI]


Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
Access Statistics
Email Alert *
Add to My List *
* Registration required (free)

  In this article
Case Report
Article Figures

 Article Access Statistics
    PDF Downloaded82    
    Comments [Add]    
    Cited by others 1    

Recommend this journal