Objective And Importance: Accessory anterior cerebral artery (ACA), which is a type of median artery of anomalous triplicate ACA, is not rare, but aneurysmal formation is extremely rare. We report a rare case with ruptured aneurysm arising from a distal accessory ACA. We discuss the characteristics and causes of this type of aneurysm and classification of this anomaly.
Clinical Presentation: A 63-year-old man suddenly developed severe headache and then loss of consciousness and paraplegia. Computed tomography disclosed thick and diffuse subarachnoid hemorrhage and interhemispheric hematoma. Subsequent bleeding occurred 2 hours after the first hemorrhage. Cerebral angiography disclosed a saccular aneurysm arising from the distal accessory ACA.
Intervention: Neck clipping of the aneurysm was performed 22 hours after the second episode, using an interhemispheric approach.
Conclusion: Although transient paraplegia occurred 8 days after onset, the patient recovered well after surgery without neurological deficit. The characteristics of the aneurysm arising from distal accessory ACA are considered similar to those of distal ACA aneurysm. There is, however, some confusion regarding the terminology of the anterior communicating artery complex anomalies, which we discuss.
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http://dx.doi.org/10.1097/00006123-199702000-00036 | DOI Listing |
Folia Morphol (Warsz)
January 2025
Department of Anatomy, School of Medicine, Faculty of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece.
Background: The anterior thoracic wall musculature presents significant morphological variability. The current literature describes a few accessory thoracic muscles (ATMs) and discusses possible clinical implications. The dissection report describes an unusual ATM variant.
View Article and Find Full Text PDFJ Bone Joint Surg Am
December 2024
Pediatric Orthopaedic Unit, Pediatric Surgery Service, Geneva University Hospitals, Geneva, Switzerland.
Background: Transphyseal hematogenous osteomyelitis (THO) is a common infectious condition, being present in 25% of patients with hematogenous osteomyelitis. A large proportion of pediatric hematogenous osteomyelitis infections can spread through the growth cartilage and therefore may be potentially responsible for growth disorders, leading to limb-length discrepancy or angular deformities. The purpose of the present study was to identify both the prevalence of complications caused by transphyseal osteomyelitis and factors influencing their occurrence.
View Article and Find Full Text PDFSurg Radiol Anat
December 2024
Department of Neurosurgery, Nakamura Memorial Hospital, South 1, West 14, Chuo-Ku, Sapporo, Hokkaido, 060-8570, Japan.
Purpose: Although both accessory middle cerebral artery (MCA) of distal origin and anterior communicating artery (ACoA) duplication are not rare anatomical variations, their combination is extremely rare and there are only a few reports of such combinations.
Methods: We report a case of distal origin accessory MCA associated with ACoA duplication diagnosed by magnetic resonance angiography (MRA).
Results: A 63-year-old man visited another hospital for screening examinations for cerebrovascular disease.
J Craniofac Surg
December 2024
Department of Anatomy, School of Medicine, Faculty of Health Sciences, National and Kapodistrian University of Athens.
Variants of the cerebral arterial circle, both common and rare, are frequently documented. The authors present a distinct case involving a 54-year-old male patient who underwent a computed tomography angiogram (CTA), which was analyzed using planar slices and 3-dimensional reconstruction. In this case, the left posterior cerebral artery (PCA) received the posterior communicating artery (PComA) 7 mm distal to its origin from the basilar artery (BA).
View Article and Find Full Text PDFCureus
November 2024
Urology, Belfast Health and Social Care Trust, Belfast, GBR.
The seminal vesicles are an accessory structure of the male reproductive system. The most common pathology associated with the seminal vesicles is infective, and patients may present with haematospermia, pain, and subfertility. Patients presenting with unilateral ureteric obstruction secondary to seminal vesiculitis are rare, and there are very few reported cases in the literature.
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