Joseph Noyal M, Kumar M Ashok, Stephen Selvaraj, Kumar Shailesh
Department of Microbiology, Mahatma Gandhi Medical College and Research Institute, Pondicherry, India.
Indian J Pathol Microbiol. 2012 Apr-Jun;55(2):248-9. doi: 10.4103/0377-4929.97896.
We report a case of keratomycosis caused by Exserohilum rostratum. A 46-year-old farmer presented with history of pain, watery discharge and redness of the right eye for the past 2 weeks following trauma with vegetable matter. On ocular examination, a central corneal ulcer of about 8 mm with a greyish-white slough, feathery edges and diffuse corneal edema was seen in the right eye. KOH examination of corneal scrapings revealed thick, brown, branched, septate hyphae. Culture of corneal scrapings on Sabouraud dextrose agar showed velvety greenish-black colony with a black pigment on the reverse. The culture was identified as E. rostratum on the basis of microscopic morphology. The patient responded well to treatment with topical natamycin and oral itraconazole.
我们报告一例由喙突弯孢霉引起的角膜真菌病。一名46岁农民,在眼部被植物物质创伤后两周,出现右眼疼痛、水样分泌物及眼红的症状。眼部检查时,右眼可见一个约8毫米的中央角膜溃疡,伴有灰白色腐肉、羽毛状边缘及弥漫性角膜水肿。角膜刮片的氢氧化钾检查显示有厚的、棕色、分支、有隔膜的菌丝。在沙氏葡萄糖琼脂培养基上培养角膜刮片,可见天鹅绒样的绿黑色菌落,背面有黑色色素。根据显微镜形态学,该培养物被鉴定为喙突弯孢霉。患者局部应用那他霉素和口服伊曲康唑治疗效果良好。