JRM
Journal of Radiology in Medicine

Journal of Radiology in Medicine is an international journal that published original research and articles in all areas of radiology. Its publishes original research articles, review articles, case reports, editorial commentaries, letters to the editor, educational articles, and conference/meeting announcements.

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Case Report
Type 2B torcular herophili variant in a two-week-old neonate: MR venography findings
Abstract
The torcular Herophili (confluence of sinuses) shows considerable anatomical variation. Type 2B torcular Herophili is an uncommon configuration characterized by preferential drainage of the straight sinus into the right transverse sinus. Recognizing this variant is important to avoid misinterpretation on magnetic resonance venography (MRV). We report a two-week-old male neonate in whom an incidental torcular Herophili variant was identified on brain MRI and MRV. MRV demonstrated preferential drainage of the straight sinus into a dominant right transverse sinus, while the left transverse sinus was smaller but patent. According to the Kobayashi classification, this finding corresponded to a type 2B torcular Herophili variant. Based on the Gökçe classification, the same configuration was consistent with a type IIA2 partial confluence pattern. This case highlights the importance of recognizing normal torcular Herophili variants in neonatal MRV and differentiating them from pathological conditions such as transverse sinus hypoplasia or cerebral venous sinus thrombosis.

Keywords : Torcular herophili, confluence of sinuses, MR venography, neonate, dural venous sinus variant, anatomical variation

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1. Kobayashi K, Matsui O, Suzuki M, Ueda F. Anatomical study of the confluence of the sinuses with contrast-enhanced magnetic resonance venography. Neuroradiology. 2006;48(5):307-311. doi:10.1007/s00234-006-0065-4
2. Lake S, Altafulla JJ, Iwanaga J, Oskouian RJ, Loukas M, Tubbs RS. A cadaveric case of a circular torcular Herophili. Cureus. 2018;10(8):e3099. doi:10.7759/cureus.3099
3. Bayaroğulları H, Burakgazi G, Duman T. Evaluation of dural venous sinuses and confluence of sinuses via MRI venography: anatomy, anatomic variations, and the classification of variations. Childs Nerv Syst. 2018;34(6):1183-1188. doi:10.1007/s00381-018-3763-4
4. Gökçe E, Pınarbaşılı T, Acu B, Fırat MM, Erkorkmaz Ü. Torcular Herophili classification and evaluation of dural venous sinus variations using digital subtraction angiography and magnetic resonance venographies. Surg Radiol Anat. 2014;36(6):527-536. doi:10.1007/s00276-013-1223-0
5. Paudel S, Sah R, Singh RK, Kayastha P, Katwal S. Dural venous sinus variations observed in magnetic resonance venography at a tertiary care hospital: an observational study. JNMA J Nepal Med Assoc. 2024; 62(279):720-724. doi:10.31729/jnma.8795
6. Casaperalta GL, Medina CAL. Type 4A torcular Herophili anatomic variant detected by cerebral digital subtraction angiography: case report. Surg Radiol Anat. 2026;48(1):106. doi:10.1007/s00276-026-03877-z
7. Kamaşak Arpaçay B, Aycan K. Morphological variations of the dural venous sinuses: a cadaveric study. Front Surg. 2026;13:1800026. doi:10.3389/fsurg.2026.1800026
Article available in :
Volume 3, Issue 3, 2026
Page : 71-73
https://doi.org/10.51271/JRM-0054
Article Information
Received : 06 Haz 2026
Accepted : 27 Tem 2026
Published : 19 Eyl 2026
Corresponding Author :

Mehmet Atalar: Department of Radiology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkiye

[email protected]
Citation : Atalar MH, Aktı S, Başpınar N. Type 2B torcular Herophili variant in a two-week-old neonate: MR venography findings. J Radiol Med. 2026;3(3):71-73. doi:10.51271/JRM-0054

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