Objectives The aim of this study was to compare the sensitivity of acetate tape impression with skin squeezing and superficial skin scraping methods for the diagnosis of burrowing mites ( Notoedres cati) in cats. Methods Samples were collected from 50 cats showing signs of notoedric mange. The most affected region was selected for sampling using acetate tape impression with skin squeezing, and superficial skin scraping. Results No significant difference was observed in the number of mites found by both methods, regardless of the stage of development of the mite. The tests showed a high correlation to the total number of mites (r = 0.928). However, in two animals it was possible to confirm the presence of N cati only by the acetate tape impression test. Conclusions and relevance We conclude that the acetate tape impression test is a good method for confirming the presence of N cati in cats. In our experience, this technique is as sensitive as superficial skin scraping, even in animals presenting with a low infestation. Moreover, the technique is less traumatic and allows the collection of clinical specimens in more sensitive locations, such as the eyelids, lips and paws.

__________________________________________________________________________Resumo: A gengivo-estomatite crônica é uma patologia oral caracterizada por apresentar lesões inflamatórias crônicas que atinge principalmente o arco glossopalatino. A sua etiologia ainda é desconhecida, mas parece ser multifatorial e apresenta fatores imunomediados. O diagnóstico deve ser baseado na anamnese, exame clínico e análises laboratoriais, devendo a terapêutica ser instituída de acordo com o caso clínico. Este trabalho tem por objetivo apresentar breve revisão de literatura relativa à patogenia, sinais clínicos, diagnóstico e tratamento da gengivo-estomatite crônica felina. Além disso, pretendemos alertar aos médicos veterinários quanto à importância da enfermidade e apresentar as dificuldades diagnósticas e terapêuticas de acordo com o estágio de evolução da doença. Moreover, we intended to warn the veterinary clinicians about the importance of the disease and to discuss about the importance of the disease and present diagnostic and therapeutic difficulties according to the stage of the disease. Palavras-chave: