Keywords
craniopharyngiomas - tuberculum - endoscopic - extended - endonasal
Fig. 1 Preoperative MRI scan demonstrating a suprasellar tumor, suggestive of craniopharyngioma.
The coronal T1 contrast-enhanced scan (left) shows the lesion, located medial to the
clinoid and supraclinoid internal carotid arteries and superior to the pituitary gland
(as demonstrated by the arrows), compressing the optic chiasm. The sagittal imaging
(right) demonstrates the relationship of the lesion with the floor of the III ventricle
and basal cisterns (right). ICA, internal carotid artery; MRI, magnetic resonance
imaging.
Fig. 2 Transtuberculum approach: surgical anatomy. The anatomical direction demonstrates
the anatomical structures related to the transtuberculum approach. cICA, clinoid segment
of the internal carotid artery; LOCR, lateral optic carotid recess; pcICA, paraclival
segment of the internal carotid artery; OC, optic canal. Dashed line demonstrates
the area of bone opening for the transtuberculum approach (copyright © Joao Paulo
Almeida, MD).
Fig. 3 Exposure of the III ventricle and interpeduncular cistern after tumor resection.
The basilar tip, PCA and SCA, III nerve, and PcomA are visible. PCA, posterior cerebral;
PcomA, posterior communicating artery; SCA, superior cerebellar.
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