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  • 1980-1984  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Mycopathologia 86 (1984), S. 113-120 
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The histopathology of murine cryptococcosis was observed until the 55th day and particular attention was paid to whether or not cysts, which had been formed in the brain, could change to granulomas. Cryptococcus neoformans RIB-12M was used in this experiment. As experimental animals, five-week-old male BALB/c mice, weighing 20–22 g, were used. An infective inoculum was prepared by adjusting the number of cryptococci to 106 or 5 × 106/0.2 ml. Each mouse was inoculated intravenously with 0.2 ml of the cell suspension, and the colony forming unit of the brain and liver, and the histopathological findings in various visceral organs were investigated. 40 × 104 colonies grew from 100 mg of the brain tissue of the eighth day. Thereafter, the number increased gradually. It reached 500 × 104 on the 20th day. The colony forming unit from the liver reached a peak on the 12th day (250 × 104) and thereafter the number decreased gradually. Histopathologically, the brain and liver were severely affected with the fungus. In the brain cysts with cryptococci continued to increase until the end of the experiment. On the other hand, in the liver several purulent foci appeared on the second day. On the eighth day numerous mononuclear cells accumulated at the foci and their lesions changed to granulomatous ones with cryptococci. The number of granulomatous lesions reached a peak on the 16th day in the mice inoculated with 5 × 106 cryptococci, and thereafter showed a tendency to decrease gradually.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Mycopathologia 82 (1983), S. 77-82 
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A 59-year-old man visited our hospital. The patient had suffered from generalized tinea superficialis for thirty years, had been treated with several topical antifungal preparations and was administered griseofulvin at another hospital. Clinical manisfestations were as follows: There were large pigmentations on the chest, abdomen, and lower extremities. He had several irregular shaped ulcers on the back, left forearm, and right axilla, and glossy granular lesions on the dorsum of the left foot. Generalized eruptions consisting of indurative pustules, red papules, scars, atrophies and depigmentations were also visible. The biopsy specimens taken from the ulcers, the indurative pustules and granular lesions of the dorsum of the left foot were cultured and Trichophyton rubrum was isolated. Laboratory studies showed slight eosinophilia, Mantoux reaction 56×40 mm, Trichophytin reaction 5×5 mm, IgE 4000 IU/dl. Histological findings were as follows: Fungal elements were observed in the horny layer, in the spindle cell layer, and in the dermis. Histologic features were both abscesses and granulomas with giant cells. According to the pathologic features of the lesions, the parasitic forms of the fungus changed. Abscesses and granulation tissues containing histiocytes and many multinucleated giant cells were observed in the dermis. Various sizes of arthrospores and various shapes of hyphae were stained by PAS. Most of these fungal elements dissolved in the abscesses and granulomas. However, a few survived.
    Type of Medium: Electronic Resource
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