ABSTRACT
This chapter describes nasal cavity tumors of wild and captive mammals, birds, reptiles, and amphibians, as well as tumors of organs of olfaction in certain lower vertebrates. It contains nonhuman primates, other mammals, birds, and ectothermic vertebrates. Few tumors involving the nares and/or nasal cavity have been reported in nonhuman primates. Tumors of the nasal cavity in nondomesticated species are exceedingly rare. An olfactory neuroepithelioma of the nasal cavity occurred in a 5-year-old male cynomolgus monkey that was used in several experimental procedures. Neoplasms of olfactory tissue have been reported in only a few ectothermic vertebrate animals. Among invertebrates, no neoplasm of chemoreceptor organs has yet been discovered. In an extensive survey of, tumors involving 19,000 animals over a 64-year span at the Philadelphia Zoo, approximately 7% of the 300 tumors studied were classified as epithelial neoplasms of the respiratory tract.
