Fatal Encephalitis in a Dog Associated with an Unidentified Coccidian Parasite

Dubey, J. P.; Slife, Leo N.

doi:10.1177/104063879000200317

Cited by 11 publications

(4 citation statements)

References 7 publications

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“…The type of host reactions in S. canis and conventional species of Sarcocystis also differs. Sarcocystis canis and S. neurona typically cause necrosis, whereas lesions in conventional Sarcocystis species are generally inflammatory 5,6 The lesions in the liver of this chinchilla were identical to those reported in a Rottweiler dog. 2 Sarcocystis species have a 2-host life cycle.…”

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confidence: 79%

Acute Hepatic Sarcocystosis in a Chinchilla

1992

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confidence: 79%

Acute Hepatic Sarcocystosis in a Chinchilla

1992

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“…Unlike previous cases of disseminated canine sarcocystosis, the infection in this puppy was localized to the lungs. 1,[5][6][7]15 The lymphoid depletion and intranuclear inclusions in the spleen along with the necrotizing bronchitis and bronchiolitis with intracytoplasmic inclusions were typical of canine distemper. 13 According to the immunoperoxidase results, large amounts of morbilliviral antigen was present in bronchial, bronchiolar, and alveolar cells, as well as in pulmonary and splenic macrophages.…”

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confidence: 99%

Pulmonary Sarcocystosis in a Puppy with Canine Distemper in Costa Rica

Berrocal

Lopez

2003

J VET Diagn Invest

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Canine distemper and pulmonary sarcocystosis were diagnosed in a 10-week-old Rottweiler with 4-day history of diarrhea, vomiting, and weakness. Microscopic examination of the lung revealed bronchointerstitial pneumonia typical of morbillivirus infection. Also, numerous apicomplexan parasites were scattered in the alveolar walls. This protozoan infection was first thought to be toxoplasmosis but immunoperoxidase staining revealed large numbers of Sarcocystis canis. This is the first case of canine sarcocystosis reported from Latin America that further emphasizes the importance of immunohistochemistry in the differential diagnoses of apicomplexan infections in dogs.

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“…5 Although the central nervous system in the infected dog was not examined, its litter-mate died of protozoan encephalomyelitis. 4 America. The apparent etiologic agent is an apicomplexan protozoan that closely resembles members of the genus Sarcocystis.…”

Section: Figures 4-7mentioning

confidence: 97%

“…3,4). The organisms were usually within the cytoplasm of round cells with abundant eosinophilic cytoplasm and vesicular nuclei, which were interpreted to be macrophages.…”

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confidence: 97%

Fatal Cutaneous and Visceral Infection in a Rottweiler Dog Associated with a Sarcocystis-Like Protozoon

et al. 1991

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A 10-month-old male Rottweiler dog from Ottawa, Illinois, had persistent diarrhea for 2 months. After the diarrhea stopped, the dog developed multiple cutaneous abscesses all over its body, particularly in the hind limbs. The limbs were swollen, hot, and painful. A skin biopsy was fixed in 10% formalin solution. The dog died, and the carcass was frozen until necropsy. No other history was available.Portions of liver, unspecified lymph node, lungs, kidney, and skin from the frozen-thawed carcass were fixed in 10% formalin solution. Paraffin-embedded sections of tissues were cut at 5 pm and stained with hematoxylin and eosin (HE). Paraffin-embedded sections from the biopsy specimens of skin were deparaffinized and reacted with Toxoplasma gondii antiserum and Neospora caninum antiserum with an avidinbiotin complex (ABC) immunohistochemical staining method? To further identify the protozoon, biopsy specimens of skin were deparaffinized and processed for transmission electronmicroscopy.Severe necrotizing fibrinosuppurative dermatitis was evident in the sections of skin (Figs. 1, 2). Numerous neutrophils, fewer eosinophils and macrophages, and abundant edema and fibrin expanded extensive areas of deep dermis and occasionally extended into superficial dermis and subcutaneous fat. Multifocal areas of dermal connective tissue and rare hair follicles were necrotic. Capillaries and venules were markedly congested. Many of them contained fibrin thrombi, and the walls of some were disrupted and infiltrated by neutrophils. Hemorrhage had occurred in some areas. A focally extensive area of epidermal necrosis and ulceration overlain by a fibrinohemorrhagic crust was present.A 1-cm-diameter focus of necrosis and fibrinosuppurative inflammation was present in the lung. Alveolar septa in this area were necrotic. Numerous neutrophils, fewer macrophages, and abundant fibrin filled alveoli and expanded re-

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Fatal Encephalitis in a Dog Associated with an Unidentified Coccidian Parasite

Cited by 11 publications

References 7 publications

Acute Hepatic Sarcocystosis in a Chinchilla

Acute Hepatic Sarcocystosis in a Chinchilla

Pulmonary Sarcocystosis in a Puppy with Canine Distemper in Costa Rica

Fatal Cutaneous and Visceral Infection in a Rottweiler Dog Associated with a Sarcocystis-Like Protozoon

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