Marine mammal neoplasia: a review.

摘要: A review of the published literature indicates that marine mammal neoplasia includes types and distributions tumors seen in domestic species. routine collection samples from species is hampered, and, hence, principally composed reports early whaling expeditions, captive zoo mammals, epizootics affect larger numbers animals a specific geographic location. The latter instances are most important, because many these long-lived, free-ranging mammals may act as environmental sentinels for health oceans. Examination large mortalities reveals incidental proliferative neoplastic conditions less commonly, identifies malignant cancers can alter population dynamics. best example presumptive herpesvirus-associated metastatic genital carcinomas found California sea lions. Studies tissues St. Lawrence estuary beluga whales have demonstrated high incidence produced evidence contamination with levels polychlorinated biphenols dichlorophenyl trichloroethane might be cause. In addition, viruses suspected to cause gastric papillomas belugas cutaneous Florida manatees harbor porpoises. While experimental laboratory procedures further elucidate mechanisms neoplasia, continued pathologic examination will also necessary follow trends wild populations.