Cytological features of feline nasopharyngeal polyps protruding into the external ear canal
2016
Owaki, K. (Gifu University, Gifu (Japan). Faculty of Applied Biological Sciences) | Ito, Y. | Kawabe, M. | Murakami, M. | Yanai, T. | Sakai, H.
Feline nasopharyngeal polyp is defined as a pedunculated non-neoplastic lesion that originates from the middle ear or auditory tube. The present study describes the cytopathological features of four feline nasopharyngeal polyps. In the imprint smear from all cases, single or clustered ciliated epithelial cells with many neutrophils and macrophages, scattered lymphocytes and plasmacytes were observed. Histologically, these ciliated cells were the ciliated pseudostratified epithelium covering the polyps, and the existence of ciliated cells was suspected to be the characteristic cytological findings of feline nasopharyngeal polyps that originate from the middle ear or auditory tube.
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