Sigmoid sinus

The unilateral hypoplastic transverse and sigmoid sinus with compensation via the contralateral transverse sinus. 

Fig. 18.1. Venous anatomy in digital subtraction angiography (DSA) in lateral projection. FV, frontal veins PV, parietal veins OV, occipital veins SSS, superior sagittal sinus ISS, inferior sagittal sinus TS, transverse sinus SIS, sigmoid sinus IJV, internal jugular vein SS, straight sinus CS, confluens sinuum VL, vein of I.abbe SV, sylvian vein CS, cavernous sinus VG, vein of Galen 1CV, internal cerebral vein IJV, internal jugular vein...

Hypoplasia or even aplasia of a sinus or part of it must be differentiated from thrombus by careful analysis of the standard anatomic sequences (Fig. 18.11). When present, the CCT scan should also be taken into account, since a hypoplastic transverse and sigmoid sinus typically demonstrates a smaller jugular foramen when compared to the normal side. 

Results of combined stereotactic, radiosurgery and transarterial embolization for dural arteriovenous fistulas of the transverse and sigmoid sinuses. Journal of Neurosurgery 94 886-891... 

Fig. 1,14a,b. Patient examined for tinnitus. CISS sequence showed tubular structure with the same signal intensity as the sigmoid sinus. Again, after contrast injection diagnosis of a DVA is obvious... 

Fig. 4.3. Typical locations of intracranial dural arterial malformations. 1, anterior fossa 2, cavernous sinus 3, transverse sinus 4, sigmoid sinus 5, confluens sinuum 6, foramen magnum 7, tentorial incisura 8, base of the tentorium 9, straight sinus and vein of Galen...

Transverse, sigmoid sinus Sigmoid sinus, jugular vein,straight sinus, superior sagittal sinus, temporal occipital veins... 

Conservative treatment is offered to patients with Borden I fistula, who generally have their lesion on the cavernous sinus or on the transverse/sigmoid sinuses. These two are the most benign and the most common location of intracranial DAVMs. In a ret-... 

Endo S, Koshu K, Kodama N et al (1979) Spontaneous regression of a posterior fossa dural arteriovenous malformation (author s translation). No Shinkei Geka 7 1001-1004 Endo S, Kuwayama N, Takaku A et al (1998) Direct packing of the isolated sinus in patients with dural arteriovenous fistulas of the transverse-sigmoid sinus. J Neurosurg 88 449-456... 

Kawaguchi T, Kawano T, Kaneko Y et al (1999a) Dural arteriovenous fistula of the transverse sigmoid sinus after transvenous embolization of the carotid cavernous fistula. No To Shinkei 51 1065-1069... 

Nishijima M, Takaku A, Endo S et al (1992) Etiological evaluation of dural arteriovenous malformations of the lateral and sigmoid sinuses based on histopathological examinations. J Neurosurg 76 600-606 Oishi H, Arai H, Sato K et al (1999) Complications associated with transvenous embolisation of cavernous dural arteriovenous fistula. Acta Neurochir (Wien) 141 1265-1271... 

Sakaki T, Morimoto T, Nakase H et al (1996) Dural arteriovenous fistula of the posterior fossa developing after surgical occlusion of the sigmoid sinus. Report of five cases. J Neurosurg 84 113-118... 

The bilaterally paired cavernous sinuses are found lateral to the sella turcica and extend from the sphenoidal fissure to the apex of the petrous portion of the temporal bone. Cranial nerves III, IV, VI, the ophthalmic division of V, and the internal carotid artery are all found in relation to the cavernous sinuses. The sinuses are fed by ophthalmic veins, and drain to the superior and inferior petrosal sinuses, the sigmoid sinus, and then to the internal jugular vein. Dysfunction at the tip of the petrous portion of the temporal can interfere with the outflow of the cavernous sinus into the narrow petrosals. 

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