The sigmoid sinuses (sigma- or s-shaped hollow curve), also known as the pars sigmoid, are paired dural venous sinuses within the skull that receive blood from posterior transverse sinuses.

Nov 3, 2023 · This article will describe the anatomy and function of the sigmoid sinuses, including related clinical notes. Learn about this topic now at Kenhub.

Jul 6, 2025 · The sigmoid sinus is a blood vessel in your skull that drains blood from your brain. When this S-shaped structure appears on your CT scan or MRI report, it may indicate various conditions …

Jan 20, 2018 · The sigmoid sinus is actually a pair of two sinuses (right and left) that enable veins to spread from the middle of the head downwards. This dual structure is considered an extension of the...

Jan 16, 2026 · The sigmoid sinus is a major, paired blood vessel within the head, with one on the left and one on the right side. Its primary role is to carry deoxygenated blood away from the brain.

Discover the course, tributaries, and drainage of the sigmoid sinuses, crucial for cerebral and cerebellar blood flow.

The sigmoid sinus is a prominent venous structure in the brain's dural venous sinus system, responsible for carrying blood from the transverse sinus to the internal jugular vein.

When comparing either side, regardless of cranial width, the sigmoid sinus on the right side protrudes deeper, covering a greater cross-sectional area, and is situated more laterally. This may be …

The sigmoid sinus (Latin: sinus sigmoideus) is a S-shaped dural venous sinus that extends beneath the temporal bone from the mastoid process to the jugular foramen. This sinus is a continuation of the …

Each sigmoid sinus begins beneath the temporal bone and follows a tortuous course to the jugular foramen, at which point the sinus becomes continuous with the internal jugular vein.