Major surgical approaches to the posterior third ventricular region: A pictorial review

Twenty-seven cases of pineal parenchymal tumours of intermediate differentiation: mitotic count, Ki-67 labelling index and extent of resection predict prognosis

“…The approach was determined by the location of the tumour and its demographic relationship with the surrounding structures. Besides the three approaches mentioned above (Material and Methods section), the infratentorial-supracerebellar approach has been reported to allow efficient exposure and safe removal of pineal region tumours 23 24 32 34 35. However, in our series, most tumours are of a large size with superior or lateral extensions into third or lateral ventricles (figures 1 and 2).…”

Large/giant meningiomas of posterior third ventricular region: Falcotentorial or velum interpositum?

“…In these large to giant lesions, an OTT approach is preferable to the SCIT approach, [10][11][12][13][14][15] as it permits a wider surgical corridor and a greater cranio-caudal view (especially for excision of tumors high above the tentorium and also for accessing their inferior pole extending infratentorially anterior to the anterior cerebellar vermis). It facilitates excision of lateral tumor extensions and allows better tumor dissection from the venous complex located in the region.…”

“…The OTT approach also avoids the vermian retraction essential in the SCIT approach (that may precipitate hemorrhage from tentorial bridging veins or even cerebellar mutism). [10][11][12][13][14][15] The considerations for choosing the side of approach were the lateral extensions of the tumor; and the side of shift of the GVC in the quadrigeminal cistern. In the presence of a pre-existing homonymous hemianopia, retraction of the ipsilateraloccipital lobe should be avoided to prevent a bilateral homonymous field defect from developing.…”

Fedor Krause (1857-1937): the father of German neurosurgery

“…In 1913 he conducted a resection of a pineal tumor through an infratentorial supracerebellar approach which he patented in neurosurgery and which would bear his name (2,27,29). Krause also had a contribution in vascular neurosurgery, being the first neurosurgeon who operated cerebral angiomas.…”