Studies on the Parasitic Forms of Sporothrix schenckii in Scales and Crusts:(II) Perithecium Like Organs Found in Crusts
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Perithecium like organs were found in the crust of the patient with sporotrichosis.<BR>The patient was female, 68 years old. About 16 months ago, a papule had appeared on the dorsal surface of her right hand joint area. It had been slowly spreading in spite of the medical treatment. When she visited on our hospital, an ulceration, ca. 5 × 2 cm in area, was formed on the extensor site of her right forearm. It was flat, elevated slightly from the skin surface without pain. Around the ulceration scales and crusts, dyed redness with mercurochrome, were attached. There was no significant lymphadenopathy on the regional area.<BR>Family history and laboratory findings were not particular.<BR>For the histopathological examination, crusts on the edge of the lesion were picked up carefully and fixed with 10% formalin solution, then, stained with PAS stain.<BR>Perithecium like organs were found in the crust specimens. This organ was jar-shape, with ostiole (ca. 50 μ in diameter) and it's cavity (ca. 60 × 70 μ) was jammed with ellipsoid or cylindrical spores. The wall was 15-25 μ in width and the cells which composed of it were various in size and in shape. The wall was composed of two layers by the extent of staining. Inner layer was strongly stained with PAS stain but outer one less strongly.<BR>The biopsy specimens showed a typical histopathological pattern in sporotrichosis, showing a combination of a pyogenic and granulomatous reaction with Langhans' giant cells and asteroid bodies.<BR>In order to culture the scales and crusts and the biopsy specimens, Sabouraud's glucose agar slants and plates were employed. After 7 days incubation at the room temperature, numerous colonies of <I>Sporothrix schenckii</I> were observed on the media and other two fungi also grew as contaminants although their numbers were a few. One of them was <I>Penicillium decumbens</I> and the other <I>Papularia sphaerosperma</I>.
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