Irek Emmanuel O, Obadare Temitope O, Udonwa Patrick A, Laoye Olajumoke, Abiri Oyekola V, Adeoye Adenike O, Aboderin Aaron O
Department of Medical Microbiology and Parasitology, Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Osun state, Nigeria.
Department of Ophthalmology, Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Osun state, Nigeria.
Afr J Lab Med. 2017 Jul 11;6(1):612. doi: 10.4102/ajlm.v6i1.612. eCollection 2017.
We report a rare cause of keratitis, due to , in a farmer with keratomycosis. Despite the acknowledged virulence of this fungus, a suitable antifungal for its management was not accessible.
A 67-year-old farmer presented with a two-week history of pain, mucopurulent discharge, redness and a corneal ulcer with a visual acuity of hand movement in the right eye. With a working diagnosis of infective keratitis, corneal scrapings were taken under a slit lamp biomicroscope for microbiological testing. Direct lactophenol cotton blue mounts revealed septate fungal hyphae, while fungal culture on Sabouraud dextrose agar at room temperature grew woolly mould phenotypically consistent with .
The patient was started on hourly topical natamycin (5%), ciprofloxacin (0.3%), two-hourly instillation of tobramycin (0.3%) and atropine (1%) twice daily for three months following the isolation of the fungus. The eye healed with a corneal scar and no improvements in visual acuity.
This infection was difficult to manage due to the inaccessibility of a suitable antifungal, namely, voriconazole in our setting. Hence, there is a need for prompt identification and early institution of suitable antifungals in any patient with suspected keratomycosis.
我们报告了一名患有角膜真菌病的农民发生角膜炎的罕见病因。尽管已认识到这种真菌的毒力,但无法获得合适的抗真菌药物来治疗。
一名67岁的农民,右眼出现疼痛、黏液脓性分泌物、眼红和角膜溃疡两周,视力为手动。初步诊断为感染性角膜炎,在裂隙灯显微镜下取角膜刮片进行微生物检测。直接乳酚棉蓝染色显示有分隔的真菌菌丝,而在室温下于沙氏葡萄糖琼脂上进行的真菌培养长出了形态与……一致的绒毛状霉菌。
分离出真菌后,患者开始每小时局部使用那他霉素(5%)、环丙沙星(0.3%),每两小时滴注妥布霉素(0.3%),并每天两次使用阿托品(1%),持续三个月。眼睛愈合后留下角膜瘢痕,视力无改善。
由于在我们的环境中无法获得合适的抗真菌药物,即伏立康唑,这种感染难以治疗。因此,对于任何疑似角膜真菌病的患者,都需要及时识别并尽早使用合适的抗真菌药物。