A Cadaveric Case of a Circular Torcular Herophili

Lake, Sasha; Altafulla, Juan J; Iwanaga, Joe; Oskouian, Rod J.; Loukas, Marios; Tubbs, R. Shane

doi:10.7759/cureus.3099

Cited by 3 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cerebral venous system is far more variable than the cerebral arterial system, differing not only among individuals but also between hemispheres in the same brain. This makes it difficult to classify the cerebral veins [ 6 , 7 ]. In contrast to the arterial system, the venous drainage of the brain is only partly understood.…”

Section: Discussionmentioning

confidence: 99%

Intraluminal anatomy of the transverse sinus: implications for endovascular therapy

et al. 2020

Self Cite

View full text Add to dashboard Cite

Trabeculae or septations in the transverse sinus can have potentially life-threatening clinical significance. The current study demonstrates trabecula/septum patterning within the transverse sinus with measurements and distribution data supplemented by imaging, and describes the possible etiology of idiopathic intracranial hypertension and turbulent blood flow in the transverse sinus. Twenty-four sides from 12 cadaveric heads, all fresh-frozen, were used (five males, seven females; age at death 65-91 years, mean 79.1 years). The length and diameter of the transverse sinus were measured along with the number and locations of septations/trabeculae and their tensile strength. The mean length of the transverse sinus was 68.43 mm on the right side and 74.31 mm on the left. A total of 42 septations were found in the 24 transverse sinuses. The number of septations per side ranged from zero to four with a mean of 1.75. The septations were located in the proximal 1/3 in 54.8% (23/42), the middle 1/3 in 21.4% (9/42), and the distal 1/3 in 23.8% (10/42). The work presented here furthers our understanding of transverse sinus anatomy, including its detailed internal architecture. The measurements can provide a technical guide for neurosurgeons and influence instrument selection when a large thrombus forms or anchors in one of these trabeculae or septa and necessitates treatment.

show abstract

Section: Discussionmentioning

confidence: 99%

Intraluminal anatomy of the transverse sinus: implications for endovascular therapy

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…A second case was reported by Lake et al in a cadaveric case. 2 Herein, we report a case of circular torcula Herophili presenting with headache.…”

Section: Introductionmentioning

confidence: 96%

Circular Configuration of Torcular Herophili Presenting as Childhood Headache: 2D Computational Fluid Dynamic Analysis with a Proposed Mechanism

Datta,

Sekar,

Patnaik

2023

Asian J Neurosurg

View full text Add to dashboard Cite

This case report presents a rare anatomical variant of the torcular Herophili, characterized by a circular configuration and the absence of the left transverse sinus. A 12-year-old child presented with intermittent holocranial headaches, and imaging revealed the circular torcular Herophili along with mild ventricular enlargement. The straight sinus drained into the left side of the circular torcular Herophili. Following lumbar puncture and cerebrospinal fluid (CSF) drainage, the child experienced symptom improvement. During a 6-month follow-up, the patient remained asymptomatic, without further headaches or academic disruptions. Similar to a previously reported case, the circular torcular Herophili with unilateral absent transverse sinus may be associated with impaired CSF absorption due to altered blood flow through abnormal venous anatomy. We performed two-dimensional computational fluid dynamic analysis of simulated flow through a synthetic model and showed that this circular configuration is associated with venous stasis. The venous stasis in the sinus may impair CSF absorption through the arachnoid granulations causing hydrocephalus and explaining the headache. Close monitoring and follow-up are recommended for patients with this variant. Further investigation is needed to better understand the clinical implications and underlying mechanisms of such torcular Herophili variations.

show abstract

“…Tardieu et al reported a previously unreported variant of the torcular herophili with a circular con guration along with absent right transverse sinus [2]. A second case was reported by Lake et al in a cadaveric case [3] 3 . Herein, we report a case of circular torcula herophili presenting with headache.…”

Section: Introductionmentioning

confidence: 97%

Circular configuration of Torcular Herophili presenting as childhood headache

Datta

Sekar

2022

Preprint

View full text Add to dashboard Cite

The torcular herophili, also known as the confluence of the sinuses, has a highly variable anatomy and up to 9 different types have been reported in the literature. We describe a case of a circular configuration of the torcular herophili in a child who presented with headache in absence of other abnormalities. The torcular herophili embryologically develops from the anterior and middle dural plexus.The anterior dural plexus is joined posteriorly by the middle dural plexus forming the junctional area of the drainage of superior sagittal sinus, straight sinus and bilateral transverse sinus, thereby forming the primitive torcular herophili 2. We propose that the circular configuration of the torcular herophili may cause episodes of headache due to raised intracranial pressure secondary to venous congestion caused by this configuration of the torcular.

show abstract

A Cadaveric Case of a Circular Torcular Herophili

Cited by 3 publications

References 9 publications

Intraluminal anatomy of the transverse sinus: implications for endovascular therapy

Intraluminal anatomy of the transverse sinus: implications for endovascular therapy

Circular Configuration of Torcular Herophili Presenting as Childhood Headache: 2D Computational Fluid Dynamic Analysis with a Proposed Mechanism

Circular configuration of Torcular Herophili presenting as childhood headache

Contact Info

Product

Resources

About