Microsurgical anatomy of the foramen of Luschka in the cerebellopontine angle,and its vascular supply |
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Authors: | Mansoor Sharifi Ewa Ungier Bogdan Ciszek and Pawel Krajewski |
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Institution: | (1) Department of Anatomy, Center of Biostructure Research, Medical University of Warsaw, 5 Chalubinskiego Street, 02-004 Warsaw, Poland;(2) Department of Forensic Medicine, Medical University of Warsaw, Warsaw, Poland |
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Abstract: | Cerebellopontine angle and vascular supply of adjacent brainstem and cerebellum are susceptible to compression and eventual
damage by tumors. Delicate and complicated neurosurgical operations in the cerebellopontine angles of the brainstem, where
lateral recesses of fourth ventricle empty, are abundant especially operations in which foramina of Luschka are used as possible
access to the floor of the fourth ventricle. So awareness and knowledge of the normal anatomical features of the region is
valuable for neurosurgeons. Arteries of 40 human cerebella were injected with colored gelatin to investigate the microsurgical
anatomy around the foramen of Luschka in the cerebellopontine angle. Two compartments of the foramen of Luschka were distinguished,
choroidal part and the patent part. Seventy-four (92.5%) of foramina were open and only 6 (7.5%) foramina were closed. The
mean distance between the foramen of Luschka and the anterior inferior cerebellar artery was 3.90 mm on the left side and
3.89 on the right side. The distance from the posterior inferior cerebellar artery was 7.08 and 5.81 mm to the left and right
foramina of Luschka, respectively. In ten cases, tortuous vertebral artery was occupying the left cerebellopontine angle space
and the foramen of Luschka. |
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Keywords: | Anterior inferior cerebellar artery Cerebellopontine angle Foramen of Luschka Posterior inferior cerebellar artery Vasculature |
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