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Year : 2022  |  Volume : 2  |  Issue : 1  |  Page : 41-43

Mucor keratitis versus Pythium keratitis: A clinical and microbiological dilemma

1 Cornea Institute, L V Prasad Eye Institute, Hyderabad, Telangana, India
2 Jhaveri Microbiology Centre, L V Prasad Eye Institute, Hyderabad, Telangana, India

Correspondence Address:
Dr. Bhupesh Bagga
The Cornea Institute, L V Prasad Eye Institute, L V Prasad Marg, Banjara Hills, Hyderabad, Telangana - 500 034
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijo.IJO_714_21

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In the pre-COVID-19 (coronavirus disease 2019) times, a 68-year-old male presented with complaints of decreased vision and whitish discoloration of the right eye. On slit-lamp examination, there was a whitish infiltrate with fuzzy margins measuring 7 mm × 6.5 mm along with <1 mm hypopyon. On microbiological examination of the corneal scraping, KOH (potassium hydroxide) + CFW (calcofluor white stain) mount revealed aseptate, broad, fungal filaments that were initially interpreted as Pythium species, but the growth on the culture was of Mucor species. The patient was managed with antifungal medications. On further follow-up, a complete resolution of the keratitis was achieved. This case highlights the importance of smear and culture correlation in such cases where the filaments of Mucor species closely mimick that of the Pythium species on microscopic examination of corneal scraping.

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