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- Title
A semiquantitative cytological evaluation of normal and pathological samples from the external ear canal of dogs and cats.
- Authors
Ginel, Pedro J; Lucena, Rosario; Rodriguez, Juan C; Ortega, Joaquin
- Abstract
Abstract Numbers of desquamated epithelial cells, yeast cells and bacterial organisms were counted in samples collected from the external ear canal of 37 normal dogs and 16 normal cats, and from 24 dogs and 22 cats with otitis externa. The aims of the study were to establish quantitative reference ranges and to correlate these data with the clinical status of the dogs and cats. Numbers of yeast cells and bacterial organisms were significantly increased in dogs (P = 0.05; P = 0.0001) and cats (P = 0.0001; P = 0.0001) with otitis externa, and in most cases high counts were correlated with clinical signs. Mean Malassezia counts per high-power dry field of ≥ 5 in the dog and ≥ 12 in the cat were considered abnormal. Mean bacterial counts per high-power dry field of ≥ 25 in the dog and ≥ 15 in the cat were considered abnormal. When used to differentiate normal from inflamed external ear canals, these figures provided a low sensitivity but a specificity of ≥ 95%.
- Subjects
CYTOLOGY; EAR canal; ANIMAL diseases
- Publication
Veterinary Dermatology, 2002, Vol 13, Issue 3, p151
- ISSN
0959-4493
- Publication type
Article
- DOI
10.1046/j.1365-3164.2002.00288.x