Biomaterial Database

Brain and spinal cord lesions in encephalitozoonosis in mink. 1990

I Bjerkås

Department of Pathology, Norwegian College of Veterinary Medicine, Oslo.

Central nervous system lesions were studied by light microscopy in 43 farmed mink, aged 5 months to 2 1/2 years, with spontaneous encephalitozoonosis and showing cataractous eye changes. Lesions were found in the brain and spinal cord of all animals examined but were generally mild and chronic. The lesions were consistent with those previously described in spontaneous encephalitozoonosis in other carnivores. Parasites in parasitophorous vacuoles and free or phagocytosed in necrotic and granulomatous lesions were demonstrated in animals aged 5 months to 1 year. The occurrence of arterial lesions of the polyarteritis nodosa type found in the youngest animals probably indicates fetal infection. In animals aged 1 1/2 and 2 1/2 years active lesions were usually lacking and the changes were characterized by arterial sclerosis, sometimes with aneurysmal formations, small perivascular lympho-plasmacytic cuffings and focal gliosis.

UI	MeSH Term	Description	Entries
D008907	Mink	Carnivores of genera Mustela and Neovison of the family MUSTELIDAE. The European mink has white upper and lower lips while the American mink lacks white upper lip.	American Mink,European Mink,Mustela lutreola,Mustela macrodon,Mustela vison,Neovison vison,Sea Mink,Mink, American,Mink, European,Mink, Sea,Minks,Minks, Sea,Sea Minks,vison, Neovison
D009670	Encephalitozoon cuniculi	A species of parasitic FUNGI. This intracellular parasite is found in the BRAIN; HEART; and KIDNEYS of several MAMMALS. Transmission is probably by ingestion of the spores (SPORES, FUNGAL).	Nosema cuniculi
D011528	Protozoan Infections	Infections with unicellular organisms formerly members of the subkingdom Protozoa.	Histomoniasis,Infections, Protozoan,Histomoniases,Infection, Protozoan,Protozoan Infection
D011529	Protozoan Infections, Animal	Infections with unicellular organisms formerly members of the subkingdom Protozoa. The infections may be experimental or veterinary.	Animal Protozoan Infection,Animal Protozoan Infections,Infection, Animal Protozoan,Infections, Animal Protozoan,Protozoan Infection, Animal
D001921	Brain	The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.	Encephalon
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
D013116	Spinal Cord	A cylindrical column of tissue that lies within the vertebral canal. It is composed of WHITE MATTER and GRAY MATTER.	Coccygeal Cord,Conus Medullaris,Conus Terminalis,Lumbar Cord,Medulla Spinalis,Myelon,Sacral Cord,Thoracic Cord,Coccygeal Cords,Conus Medullari,Conus Terminali,Cord, Coccygeal,Cord, Lumbar,Cord, Sacral,Cord, Spinal,Cord, Thoracic,Cords, Coccygeal,Cords, Lumbar,Cords, Sacral,Cords, Spinal,Cords, Thoracic,Lumbar Cords,Medulla Spinali,Medullari, Conus,Medullaris, Conus,Myelons,Sacral Cords,Spinal Cords,Spinali, Medulla,Spinalis, Medulla,Terminali, Conus,Terminalis, Conus,Thoracic Cords