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Equine Aural Plaque - Coggle Diagram
Equine Aural Plaque
CS
one to severeal grey or white sharply demarcated plaques
usually asymptomatic
may cause discomfort
persist indefinitely
inner surface of pinna(e)
severe cases >50% of inner pinnae affected
general considerations
common throughout USA
rare in horses <1y
no breed or sex predilection
history
doesn't bother horses
horse doesn't allow head or ears touch
difficulty putting the bridle or halter on
diagnosis
well it's a pretty pathoneumonic presentation so...
biopsy if you really want
search for ear ticks, foreign bodies, mange
treatment
benign neglect
topicals
5% imiquimod
5% acyclovir anecdotally
fly control
etiology and pathogenesis
papilloma virus
back flies may be mechanical vector
