Non-neoplastic lesions in beluga whales (Delphinapterus leucas) and other marine mammals from the St lawrence estuary

S. De Guise, A. Lagacé, P. Béland, C. Girard, Robert Higgins

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

In a 3-year (1988-1990) pathological study, 24 carcasses of beluga whales from the St Lawrence Estuary, Québec, Canada, showed numerous severe lesions, many of which had never been reported in cetaceans. The most common lesions were found in the digestive tract (21 animals) and consisted mainly of periodontitis and of erosions and ulcers in the oesophagus and the first two gastric compartments. Pneumonia, usually of parasitic origin, was also a common finding (12 animals). The adrenal glands often contained nodules (five animals) or cysts (seven animals), and mastitis was observed in five females. Overall, the incidence of degenerative, infectious, hyperplastic or necrotic lesions, in addition to numerous neoplasms described in another paper, was considerably higher than that found in marine mammals elsewhere or in other species of marine mammal from the same waters.

Original languageEnglish (US)
Pages (from-to)257-271
Number of pages15
JournalJournal of Comparative Pathology
Volume112
Issue number3
DOIs
StatePublished - Jan 1 1995
Externally publishedYes

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • veterinary(all)

Fingerprint Dive into the research topics of 'Non-neoplastic lesions in beluga whales (Delphinapterus leucas) and other marine mammals from the St lawrence estuary'. Together they form a unique fingerprint.

Cite this