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Three Cases of Sporotrichosis with Numerous Fungal Elements
Author(s) -
Mohri Shinobu,
Nakajima Hiroshi,
Kurosawa Tsutae,
Takanashi Yuzo,
Takahashi Yasuhide,
Nagai Ryukichi
Publication year - 1987
Publication title -
the journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 65
eISSN - 1346-8138
pISSN - 0385-2407
DOI - 10.1111/j.1346-8138.1987.tb03597.x
Subject(s) - sporotrichosis , sporothrix schenckii , histiocyte , pathology , granuloma , dermis , abscess , medicine , adenitis , spore , biology , microbiology and biotechnology , surgery
Three cases of sporotrichosis with numerous fungal elements were reported. Clinically these cases showed nodules to plaques with ulceration. Histologically, they showed unusual features, including histiocytic granuloma in the upper to middle dermis which contained few neutrophils but were surrounded by lymphocytes and epithelioid cells. There was no formation of an abscess. Fungal elements were found in abundance in the histiocytic granuloma, mainly in the form of oval or round spores of varying sizes, some of them produced germ tubes. No asteroid bodies were found. The spores stained positively with HE and PAS, and, in case 1, with anti‐ Sporothrix schenckii antiserum. All three cases had been treated with topical corticosteroid ointment. In one case, after the topical corticosteroid treatment was stopped, the histological pattern returned to the usual features seen in sporotrichosis, and fungal elements decreased significantly. This unusual histological pattern was also observed in a specimen from a healthy control infected with Sporothrix schenckii and treated with steroid ointment. These histological and fungal patterns may be possibly induced by the local immunodeficiency following topical steroid treatment.