Diagnostic exercise. Cerebellar ataxia.
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Biomedical subjects
Publications and source records attributed to G Migaki.
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Pulmonary cryptococcosis was diagnosed in a 7-year-old dolphin which had been in captivity for about 4 years. Cryptococcosis has been reported in a variety of animals, but this is the first report in a cetacean.
A severe necrotizing granulomatous lymphadenitis caused by Sporothrix schenckii was diagnosed in a Pacific white-sided dolphin (Lagenorhynchus obliquidens) that had been in captivity for about 3 years. Histopathologic and electron microscopic studies, as well as fluorescent antibody techniques, were used to identify S schenckii as the etiologic agent.
A solitary renal adenoma was an incidental finding at the pole of a kidney of an aged male Atlantic bottle-nosed dolphin (Tursiops truncatus) which had been captured in the Gulf of Mexico near St. Petersburg Beach, Fla, and maintained at Marine Attractions, Inc, St. Petersburg. The only other significant findings were widespread cutaneous lesions of Lobo disease.
Five pheasants and two ocellated turkeys from the San Diego Zoological Garden had multiple cecal nodules. These nodules were composed mostly of granulomas and fibrous hyperplastic tissue associated with Heterakis isolonche.
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Disseminated toxoplasmosis was diagnosed in a female California sea lion that had been used in thermoregulation studies for about 4 years while housed in a small enclosure with a fresh-water pool at the University of Hawaii, Honolulu. Toxoplasma gondii was demonstrated in and around necrotic lesions of the heart and the stomach. Source of the infection was not established; however, studies on toxoplasmosis in cats were being conducted at the institution, and common caretakers attended both groups of animals.
Thirty-four cases of systemic mycosis in marine mammals were represented by 9 genera of fungi. All cases were characterized by pulmonary involvement, with miliary spread to abdominal organs. Cases were geographically distributed among Hawaii, northern United States, Europe, New Zealand, and southern Asia.
A captive Atlantic bottlenosed dolphin (Tursiops truncatus) was examined after being found beached in the shallows of its lagoon enclosure. An abscess was found in the right cerebral hemisphere, and Staphylococcus aureus was isolated from the lesion. Histopathologic examination of the brain revealed a pyogenic meningoencephalitis.
Coccidioidomycosis in an adult male California sea lion (Zalophus californianus) is described. The animal was housed in a zoo in Tucson, Arizona, for approximately 5 years. This is believed to be the first reported case of coccidioidomycosis in a marine mammal.
A female Perodicticus potto developed a subcutaneous spherical mass on the medial aspect of the inguinal area. The anesthesia, surgical removal, and aftercare were described. The tumor was described grossly and histologically. It was determined to be a myeloliposarcoma. The tumor has not recurred after 14 mo.
The occurrence of dermatophilosis in the titi monkey is reported. Lesions were principally in the epidermis of the skin and were characterized by parakeratosis, necrosis, abscess formation, acanthosis, and hyperkeratosis. The cause, Dermatophilus congolensis, was demonstrated as a gram-positive filamentous organism with both horizontal and vertical septums.
An unidentified brown-pigmented fungus was the cause of a granuloma in the left lumbar musculature of a captive female tiger salamander. Histologically, the fungus appeared in the granulomatous tissue both as round yeastlike budding cells and as long septate hyphae.
The diseases, lesions, congenital disorders, and parasites of both Insectivora and prosimian shrews were reviewed. Preliminary baseline data provide encouraging prospects for using these animals as research models because few spontaneous diseases and lesions have been reported. It must be pointed out, however, that throughout the literature reviewed, clinical histories were incomplete and histopathologic examinations had seldom been performed, particularly with the parasitic entities.