Pathology in Practice

Abstract

HistoryA 7-month-old sexually intact male domestic longhair cat was evaluated because of unusual skin lesions affecting both ears. The cat had been relinquished by its owner to a county animal shelter. No medical history was available. Clinical and Gross FindingsOn physical examination, the cat was in good body condition with abnormalities limited to both external ear canals and pinnae. The cat had locally extensive crusted and hyperkeratotic proliferative plaques that filled the external and vertical ear canals and extended onto 35% to 50% of the proximal concave portions of both pinnae. Le-

Proliferative and necrotizing otitis externa in a kitten: Case report with literature review

“…A thick dark brown exudate covers lesional area and its removal reveals underlying ulcers and erosions. Bacterial or yeast colonization is typically seen with cytological examination (Mauldin et al, 2007;Videmont and Pin, 2010;Borio et al, 2012;Stevens and Linder, 2012;Momota et al, 2016;Momota et al, 2017;McAuliffe et al, 2020;Panzuti et al,2021). Animals are otherwise healthy.…”

“…In some cases, lesions can be painful or pruritic due to ulcerations and secondary infection, respectively. Lesions occur rapidly and may spontaneously regress when the cat reaches the age of twelve to twenty-four months (Gross et al, 2005;Mauldin et al, 2007;Videmont and Pin, 2010;Stevens and Linder, 2012). Diagnosis is considered easy due to its unique clinical signs and can be confirmed further with histopathological examination.…”