Kano Rui, Edamura Kazuya, Yumikura Hisayoshi, Maruyama Haruhiko, Asano Kazuyuki, Tanaka Shigeo, Hasegawa Atsuhiko
Mycoses. 2009 Jan;52(1):80-3. doi: 10.1111/j.1439-0507.2008.01518.x. Epub 2008 Apr 26.
The first case of feline true mycetoma because of a dermatophyte has been reported in this manuscript, although pseudomycetoma has been described in dogs and cats. The patient was a 9-year-old castrated male Persian cat weighing 4.2 kg with subcutaneous nodules on the dorsal trunk. Physical examination revealed two subcutaneous nodules (2.5 x 5.0 cm and 3.5 x 5.0 cm in size) that drained purulent exudates with cement-like substances containing yellowish granules. The impression smear of the yellowish granules demonstrated by PAS staining that they were masses of fungal septated hyphae (3-4 mum of width). From the nodular inflammation with fibrosis, fistulae draining from deep tissue and many grains containing abundant hyphal filaments, the case was diagnosed as mycetoma, complying with the definitive criteria of mycetoma. The etiologic fungus was molecularly as well as morphologically identified as Microsporum canis.
本文报告了首例由皮肤癣菌引起的猫真性足菌肿病例，尽管犬猫假足菌肿已有相关描述。该患者为一只9岁去势雄性波斯猫，体重4.2千克，背部躯干有皮下结节。体格检查发现两个皮下结节（大小分别为2.5×5.0厘米和3.5×5.0厘米），排出含有淡黄色颗粒的脓性渗出物及类似水泥样物质。淡黄色颗粒的印片经PAS染色显示为真菌分隔菌丝团块（宽度3 - 4微米）。根据伴有纤维化的结节性炎症、深部组织引流的瘘管以及许多含有丰富菌丝丝的颗粒，该病例被诊断为足菌肿，符合足菌肿的确诊标准。通过分子及形态学鉴定，致病真菌为犬小孢子菌。
