552 DISEASES/DISORDERS
Fig. 37.2.Normal tympanum in a 9-year-old male-castrate DSH. The manubrium of the malleus in the cat
appears straighter than in the dog. C, caudal; R, rostral; pt, pars tensa; m, manubrium of the malleus.
Fig. 37.3.Erythroceruminous otitis externa as a result of chronic atopic dermatitis in an 11-year-old male-
castrate Maltese. The pinna is thickened and erythematous, with accumulations of waxy to purulent exudate.