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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 ?
1) Involvement of the external auditory canal can manifest as mastoid swelling, aural polyps, otorrhea, and erosion of the bony canal wall with sagging of the canal wall skin.
We routinely use these partial-thickness skin grafts after otologic procedures that either create a mastoid cavity or result in reduced skin coverage of a portion of the external auditory canal.
1-3) Epidermoid cysts are also extremely rare in the external auditory canal.
External auditory canal cholesteatoma: Reassessment of and amendments to its categorization, pathogenesis, and treatment in 34 patients.
Cancer of the external auditory canal and temporal bone.
The external auditory canal (EAC) and the thyroid gland are unusual sites for lymphoma.
The physical examination confirmed the left facial paralysis and revealed the presence of a reddish mass in the left external auditory canal.
4) External otitis progresses from the external auditory canal to the temporal bone and the skull base via the fissure of Santorini and the osteocartilaginous junction.
We are unsure of the cause of such rapid development of the cholesteatoma in this case, but we believe the lesion originated from the external auditory canal rather than the middle ear or mastoid, since the destruction of the external auditory canal was more severe than that of the middle ear or antrum.
Anything which irritates the external auditory canal stimulates the wax glands.
External auditory canal cholesteatoma: clinical and imaging spectrum.
Cortisporin(R) Otic Solution and Suspension are indicated for the treatment of superficial bacterial infections of the external auditory canal.

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