External auditory canal atresia (EACA) may arise as a congenital deformity, or as sequel to external auditory canal trauma. Diagnosis of EACA was made in this 3-year-old cat by video otoscopy and computed tomography. Successful treatment of congenital segmental EACA was achieved, using end-to-end anastomosis. Primary anastomosis should be considered for treatment of both acute and chronic separation of the annular and auricular cartilages, as well as congenital EACA in the cat.
References
1.
Simpson D..Atresia of the external acoustic meatus in a dog.Aust Vet J. 1997;75:18-20
2.
House A..Atresia of the distal external acoustic meatus in a Bouvier des Flandres.J Small Anim Pract. 2001;42:88-89
3.
Schmidt K.,Piaia T.,Bertolini G.,De Lorenzi D..External auditory canal atresia of probable congenital origin in a dog.J Small Anim Pract. 2007;48:233-236
McCarthy P.E.,Hosgood G.,Penchman R.D..Traumatic ear canal separations and para-aural abscessation in three dogs.J Am Anim Hosp Assoc. 1995;31:419-424
6.
Boothe H.W.,Hobson H.P.,McDonald D.E..Treatment of traumatic separation of the auricular and annular cartilages without ablation: results in five dogs.Vet Surg. 1996;25:376-379
7.
Connery N.A.,McAllister H.,Hay C..Para-aural abscessation following traumatic ear canal separation in a dog.J Small Anim Pract. 2001;42:253-256
8.
Smeak D.D..Traumatic separation of the annular cartilage from the external auditory meatus in a cat.J Am Vet Med Assoc. 1997;211:448-450
9.
Kyles A.E..Traumatic separation of the auricular and annular cartilages in two cats.Vet Rec. 2001;31:419-424
10.
Clarke S.P..Surgical management of acute ear canal separation in a cat.J Feline Med Surg. 2004;6:283-286
11.
Brodey R.S.,Harvey C.E..Atresia of the vertical ear canal in a dog.J Am Vet Med Assoc. 1969;155:1457-1459
12.
Anson B.J.,Hanson J.S.,Richany S.F..Early embryology of the auditory ossicles and associated structures in relation to certain anomalies observed clinically.Ann Otol Rhinol Laryngol. 1960;69:427-447
13.
Bojrab M.J.Current Techniques in Smal Animal Surgery. 4th ednBojrab M.J.Ellison G.W.Slocum B., ed. Baltimore: Williams & Wilkins; 1998:101-103.
14.
Krahwinkel D.J.Textbook of Small Animal Surgery. 3rd ednSlatter D., ed. Philadelphia: Saunders; 2002:1746-1756.
15.
Singh R.K.,Bhandary S.,Sinha B.K.,Karki P..Penetrating injury of parotid gland and external auditory canal: a unique combination.J Laryngol Otol. 2004;118:977-979
16.
Bacon N.J.,Gilbert R.L.,Bostock D.E.,White R.A..Total ear canal ablation in the cat: indications, morbidity and long-term survival.J Small Anim Pract. 2003;44:430-434
17.
McNabb A.H.,Flanders J.A..Cosmetic results of a ventrally based advancement flap for closure of total ear canal ablations in 6 cats: 2002–2003.Vet Surg. 2004;33:435-439
