350 DISEASES/DISORDERS
Fig. 22.14.Tail gland hyperplasia with secondary folliculitis and furunculosis in a 7-year-old male-intact Amer-
ican bulldog.
(a) (b)Fig. 22.15.Alopecia caused by exposure to human testosterone topical hormone replacement therapy at
the time of diagnosis (a) and 6 months after exposure discontinued (b) in a 3-year-old female-spayed Yorkshire
terrier.