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CANAL. A trench dug for leading water in a particular direction, and confining it.
     2. Public canals are generally protected by the law which authorizes their being made. Various points have arisen under numerous laws authorizing the construction of canals, which have been decided in cases reported in 1 Yeates, 430; 1 Binn. 70; 1 Pennsyl. 462; 2 Pennsyl. 517; 7 Mass. 169; 1 Sumu. 46; 20 Johns. 103, 735; 2 Johns. 283; 7 John. Ch. 315; 1 Wend. 474; 5 Wend. 166; 8 Wend. 469; 4 Wend. 667; 6 Cowen, 698; 7 Cowen, 526 4 Hamm. 253; 5 Hamm. 141, 391; 6 Hamm. 126; 1 N. H. Rep. 339; See River.

References in periodicals archive ?
Expansion of the Internal Auditory Canal in Cases of Acoustic Schwannoma
Study of the human internal auditory canal in relation to age and sex.
At this point she was sent for a magnetic resonance imaging (MRI) scan of the brain and internal auditory canals.
Subsequent axial CT images of the temporal bones showed the defects of the bony labyrinth in proband such as a symmetric bulbous dilatation of the internal auditory canals in both ears and partial separation of the cochlea with the fundus of internal auditory canals, which was consistent with DFNX3.
Acoustic Schwannomas are benign tumours that arises from the nerve sheath of eight cranial nerve usually from vestibular division [4] and located within the internal auditory canal (IAC) and cerebellopontine angle (CPA).
8-mm enhancing lesion involving the right cerebellopontine angle with extension into the right internal auditory canal and widening of the canal (figure 1).
Previous studies [sup][34],[35],[36] have proven that the RS approach has various advantages, such as the adequate control of bleeding, dissection of the entire tumor under direct view, easy identification of the facial and cochlear nerves at their root entry zone and the distal end in the internal auditory canal, and adequate exposure of the foramen of Luschka.
In the lateral type the fractures line passes through the vestibule or cochlea and in the medial type the fractures line passes medial to the otic capsule through the Internal Auditory Canal fundus.
1) Although they are benign, acoustic neuromas can cause considerable morbidity if left untreated because of their location in the internal auditory canal and cerebellopontine angle.
Osteomas occurring in the internal auditory canal are extremely rare.

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