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Head and Neck
Published in Bobby Krishnachetty, Abdul Syed, Harriet Scott, Applied Anatomy for the FRCA, 2020
Bobby Krishnachetty, Abdul Syed, Harriet Scott
Unpaired sinusesSuperior sagittal sinus, which sits between the cerebral hemispheres in the superior border of the cerebral falx, drains eventually into the right internal jugular vein.Inferior sagittal sinus, which sits between the cerebral hemispheres in the inferior border of the cerebral falx, drains eventually into the left internal jugular vein.Straight sinus, a continuation of the inferior sagittal sinus after it receives the great cerebral vein of Galen
Neurosurgery: Supratentorial tumors
Published in Hemanshu Prabhakar, Charu Mahajan, Indu Kapoor, Essentials of Geriatric Neuroanesthesia, 2019
Monica S. Tandon, Kashmiri Doley, Daljit Singh
The falx cerebri is a double fold of dura mater that descends through the interhemispheric fissure in the midline of the brain between the two cerebral hemispheres. Its superior and inferior margins contain the superior sagittal sinus (SSS) and inferior sagittal sinus, respectively; there is a potential risk of injury to these sinuses during resection of tumors that arise from the falx or grow in close proximity to the sinus (e.g., meningiomas).
Anatomy of veins and lymphatics
Published in Ken Myers, Paul Hannah, Marcus Cremonese, Lourens Bester, Phil Bekhor, Attilio Cavezzi, Marianne de Maeseneer, Greg Goodman, David Jenkins, Herman Lee, Adrian Lim, David Mitchell, Nick Morrison, Andrew Nicolaides, Hugo Partsch, Tony Penington, Neil Piller, Stefania Roberts, Greg Seeley, Paul Thibault, Steve Yelland, Manual of Venous and Lymphatic Diseases, 2017
Ken Myers, Paul Hannah, Marcus Cremonese, Lourens Bester, Phil Bekhor, Attilio Cavezzi, Marianne de Maeseneer, Greg Goodman, David Jenkins, Herman Lee, Adrian Lim, David Mitchell, Nick Morrison, Andrew Nicolaides, Hugo Partsch, Tony Penington, Neil Piller, Stefania Roberts, Greg Seeley, Paul Thibault, Steve Yelland
The superficial system of superior, superficial middle and inferior cerebral veins drains the cerebral cortex to the midline superior sagittal sinus. The deep system drains to the midline great cerebral vein of Galen which joins the inferior sagittal sinus to form the straight sinus. The cavernous sinus drains the ophthalmic veins and lies on either side of the sella turcica, and from here blood returns to the internal jugular vein through the superior and inferior petrosal sinuses, then the transverse sinus.
Parasagittal and parafalcine meningiomas: integral strategy for optimizing safety and retrospective review of a single surgeon series
Published in British Journal of Neurosurgery, 2020
Daniel G. Eichberg, Amanda M. Casabella, Simon A. Menaker, Ashish H. Shah, Ricardo J. Komotar
Certain intraoperative maneuvers allow for less encumbered visualization of all points of attachment of the tumor and more aggressive tumor resection, although they confer potentially catastrophic risks to critical neurovascular structures. Some surgeons advocate for crossing the SSS while turning the craniotomy in order to improve visualization and potentially mobilize the SSS if necessary during tumor dissection. While technically feasible, crossing the sinus, particularly in patients with poor dural integrity or adherent dura, may result in injury to the sinus, and can potentially cause devastating complications such as venous infarct, hemorrhagic conversion, or air embolism. Additionally, if there is attachment to the falx cerebri, some neurosurgeons recommend resecting the falx, as removing all dural attachments minimizes the change of recurrence.16 However, falx resection places important structures at risk such as the pericallosal and callosomarginal arteries, SSS and inferior sagittal sinus, and the contralateral cortex. Again, while resecting the falx is possible, we believe it creates undo risk for the patient.