Determining the morphometry and variations of the confluens sinuum and related structures via a silicone painting technique on autopsy patients.
In this study, we aimed to investigate the morphometric and morphologic structures of the confluens sinuum (CS) and related structures with a silicone painting technique. We studied 30 cadavers. Twelve of them were washed with alcohol and filled with a silicone painting technique via the vena jugularis interna, internal carotid artery, and vertebral artery. The other 18 were autopsied postmortem. The CS and related structures were dissected under microscope. Their anatomy was investigated, and variations were noted. The diameters of the sinus sagittalis superior (SSS), CS, occipital sinus (OS), sinus rectus (SR), and bilateral transverse sinus (TS), and the angle between SSS and SR were measured. The mean diameters were 11.7 mm for SSS, 22.3 mm for CS, 5.25 mm for OS, 7.5 mm for SR, and 9.7 (right) and 9.1 mm (left) for TS. The angle between the SR and SSS was 58°. There was no difference in the bilateral venous structures that drained to the SSS and TS. There was an extra drainage to the CS from the left side in 4 cases. The right TS was located superiorly in 7 cases compared with the left TS, and this process was correlated with the type of CS. A septum in the SSS was detected in 2 cases. In addition, we encountered an OS in 80% of the cases. We conclude that the septum inside the CS affects the dominancy of the TS, the angle between the SSS and SR, and the other venous variations.
From the *Department of Neurosurgery, Faculty of Medicine, Canakkale 18 March University, Canakkale; †Department of Neurosurgery, Faculty of Medicine, Marmara University, Istanbul; ‡Department of Neurosurgery, Faculty of Medicine, Sakarya University, Sakarya; §Department of Neurosurgery, Dr. Lutfu Kirdar Kartal Educational Hospital, Istanbul; ∥Council of Forensic Medicine, Istanbul; ¶Department of Neurosurgery, Faculty of Medicine, Medipol University, Istanbul; #Department of Anatomy, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar; and **Department of Anatomy, Faculty of Medicine, Namik Kemal University, Tekirdag, Turkey.
Murat
M
Cosar
Askn
A
Seker
Davut
D
Ceylan
Necati
N
Tatarli
Fevzi
F
Sahin
Mehmet
M
Tokmak
Ahmet
A
Songur
Turker
T
Kilic
Oguz Aslan
OA
Ozen
D000328:Adult; D063405:Anatomic Variation; D002102:Cadaver; D002343:Carotid Artery, Internal / Q000033:anatomy & histology; D002508:Cephalometry / Q000379:methods; D003392:Cranial Sinuses / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D007601:Jugular Veins / Q000033:anatomy & histology; D008297:Male; D008875:Middle Aged; D010781:Photography / Q000379:methods; D016628:Replica Techniques; D012828:Silicones / Q000737:chemistry; D054063:Superior Sagittal Sinus / Q000033:anatomy & histology; D054064:Transverse Sinuses / Q000033:anatomy & histology; D014711:Vertebral Artery / Q000033:anatomy & histology
D012828:Silicones