Ear problems and head tilt

Robert Williams

doi:10.22233/9781910443200.22

British Small Animal Veterinary Association , 244 (2015); https://doi.org/10.22233/9781910443200.22

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Ear problems and head tilt

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Author: Robert Williams
From: BSAVA Manual of Canine Practice
Item: Chapter 22, pp 244 - 251
DOI: 10.22233/9781910443200.22
Copyright: © 2015 British Small Animal Veterinary Association
Publication Date: January 2015

Abstract

Disorders of the ears are some of the most common presentations in first-opinion canine practice; rarely will a day go by when a practitioner doesn’t need to deal with a case of ear disease. This chapter focuses on clinical examination of the ear, aural haematoma, laceration of the pinna, foreign bodies, otitis externa and vestibular disease. Quick Reference Guides: Ear cytology; Otoscopy; Surgical treatment of aural haematoma.

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22.1

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22.1 Otodectes cynotis ear mite. (Original magnification X80) (Courtesy of Ken Robinson)

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22.2

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22.2 Typical appearance of an aural haematoma, showing a bulging fluid-filled mass on the concave surface of the pinna.

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22.3

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22.3 Needle drainage of an aural haematoma.

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22.4

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22.4 Laceration of the pinna; note the profuse bleeding.

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22.6

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22.6 (a) Young cross-breed dog with early otitis externa, showing erythema of the outer canal. (b) Typical gross appearance of otitis externa.

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22.8

Chronic otitis externa, showing thickening of the skin lining the ear canal and narrowing of the canal, in a middle-aged Staffordshire Bull Terrier. Copyright © 2015 British Small Animal Veterinary Association.

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22.8 Chronic otitis externa, showing thickening of the skin lining the ear canal and narrowing of the canal, in a middle-aged Staffordshire Bull Terrier.

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22.9

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22.9 Head tilt in a geriatric dog.

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22.10

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22.10 Typical appearance of an aural polyp following removal. This is a relatively large, smooth, pale pink/purple mass with an obvious ‘stalk’.

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Bacterial rods in a sample from an ear canal. Some bacteria are being phagocytosed by neutrophils, showing that the infection is active. (Original magnification X1000)

Bacterial rods in a sample from an ear canal. Some bacteria are being phagocytosed by neutrophils, showing that the infection is active. (Original magnification X1000) Copyright © 2015 British Small Animal Veterinary Association.

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Bacterial rods in a sample from an ear canal. Some bacteria are being phagocytosed by neutrophils, showing that the infection is active. (Original magnification X1000) Bacterial rods in a sample from an ear canal. Some bacteria are being phagocytosed by neutrophils, showing that the infection is active. (Original magnification X1000)

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Bacterial cocci in a sample from an ear canal. Some bacteria are being phagocytosed by neutrophils, showing that the infection is active. (Original magnification X1000)

Bacterial cocci in a sample from an ear canal. Some bacteria are being phagocytosed by neutrophils, showing that the infection is active. (Original magnification X1000) Copyright © 2015 British Small Animal Veterinary Association.

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Bacterial cocci in a sample from an ear canal. Some bacteria are being phagocytosed by neutrophils, showing that the infection is active. (Original magnification X1000) Bacterial cocci in a sample from an ear canal. Some bacteria are being phagocytosed by neutrophils, showing that the infection is active. (Original magnification X1000)

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Normal ear canal, with a small amount of wax. © Sue Paterson Normal ear canal, with a small amount of wax. © Sue Paterson

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(a,b) Preoperative views, showing the extent of the haematoma. (c) Sutures on the convex surface of the pinna. (d) The concave surface, showing the sutures and drainage channel. The postoperative photographs were taken after removal of the drapes, but before final clean (the sutures continue to ooze for some time afterwards).

(a,b) Preoperative views, showing the extent of the haematoma. (c) Sutures on the convex surface of the pinna. (d) The concave surface, showing the sutures and drainage channel. The postoperative photographs were taken after removal of the drapes, but before final clean (the sutures continue to ooze for some time afterwards). Copyright © 2015 British Small Animal Veterinary Association.

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(a,b) Preoperative views, showing the extent of the haematoma. (c) Sutures on the convex surface of the pinna. (d) The concave surface, showing the sutures and drainage channel. The postoperative photographs were taken after removal of the drapes, but before final clean (the sutures continue to ooze for some time afterwards). (a,b) Preoperative views, showing the extent of the haematoma. (c) Sutures on the convex surface of the pinna. (d) The concave surface, showing the sutures and drainage channel. The postoperative photographs were taken after removal of the drapes, but before final clean (the sutures continue to ooze for some time afterwards).