Biomaterial Database

Non-neoplastic lesions in beluga whales (Delphinapterus leucas) and other marine mammals from the St Lawrence Estuary. 1995

S De Guise, and A Lagacé, and P Béland, and C Girard, and R Higgins

Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, Québec, Canada.

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.

UI	MeSH Term	Description	Entries
D008322	Mammals	Warm-blooded vertebrate animals belonging to the class Mammalia, including all that possess hair and suckle their young.	Mammalia,Mammal
D010272	Parasitic Diseases	Infections or infestations with PARASITES. They are often contracted through contact with an intermediate vector, but may occur as the result of direct exposure.	Parasite Infections,Parasitic Infections,Disease, Parasitic,Diseases, Parasitic,Infection, Parasite,Infection, Parasitic,Infections, Parasite,Infections, Parasitic,Parasite Infection,Parasitic Disease,Parasitic Infection
D010273	Parasitic Diseases, Animal	Animal diseases caused by PARASITES.	Parasitic Infections, Animal,Animal Parasitic Disease,Animal Parasitic Diseases,Animal Parasitic Infection,Animal Parasitic Infections,Disease, Animal Parasitic,Diseases, Animal Parasitic,Infection, Animal Parasitic,Infections, Animal Parasitic,Parasitic Disease, Animal,Parasitic Infection, Animal
D010518	Periodontitis	Inflammation and loss of connective tissues supporting or surrounding the teeth. This may involve any part of the PERIODONTIUM. Periodontitis is currently classified by disease progression (CHRONIC PERIODONTITIS; AGGRESSIVE PERIODONTITIS) instead of age of onset. (From 1999 International Workshop for a Classification of Periodontal Diseases and Conditions, American Academy of Periodontology)	Pericementitis,Pericementitides,Periodontitides
D011014	Pneumonia	Infection of the lung often accompanied by inflammation.	Experimental Lung Inflammation,Lobar Pneumonia,Lung Inflammation,Pneumonia, Lobar,Pneumonitis,Pulmonary Inflammation,Experimental Lung Inflammations,Inflammation, Experimental Lung,Inflammation, Lung,Inflammation, Pulmonary,Inflammations, Lung,Inflammations, Pulmonary,Lobar Pneumonias,Lung Inflammation, Experimental,Lung Inflammations,Lung Inflammations, Experimental,Pneumonias,Pneumonias, Lobar,Pneumonitides,Pulmonary Inflammations
D002170	Canada	The largest country in North America, comprising 10 provinces and three territories. Its capital is Ottawa.
D004947	Esophagus	The muscular membranous segment between the PHARYNX and the STOMACH in the UPPER GASTROINTESTINAL TRACT.
D005767	Gastrointestinal Diseases	Diseases in any segment of the GASTROINTESTINAL TRACT from ESOPHAGUS to RECTUM.	Cholera Infantum,Gastrointestinal Disorders,Functional Gastrointestinal Disorders,Gastrointestinal Disorders, Functional,Disease, Gastrointestinal,Diseases, Gastrointestinal,Functional Gastrointestinal Disorder,Gastrointestinal Disease,Gastrointestinal Disorder,Gastrointestinal Disorder, Functional
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000820	Animal Diseases	Diseases that occur in VERTEBRATE animals.	Diseases, Animal