Mould Identification: A Virtual Self Assessment
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Unknown 35 = Cylindrocarpon lichenicola
|A 53 year old farmer, presented with complaints of pain, redness and irritation of the left eye following ocular injury caused by hay 5 days earlier. Slit-lamp examination of the affected eye revealed a corneal ulcer with irregular margins. Scrapings were taken from the base and edges of the corneal ulcer by a sterile blade. Microscopic examination of these scrapings revealed the presence of septate fungal hyphae and the culture below was grown.|
Colonies are fast growing, hyaline or bright-coloured, suede-like or woolly. Sporodochia may occasionally be present.
Conidiophores consist of simple or repeatedly verticillate phialides, arranged in brush-like structures. Phialides are cylindrical to subulate, with small collarettes producing hyaline, smooth-walled conidia, which are arranged in slimy masses. Two types of conidia may be produced; macroconidia which are one to several septate, hyaline, straight or curved, cylindrical to fusiform, with a rounded apex and flat base; and microconidia which are one-celled, which are usually clearly distinct from the macroconidia.
Chlamydospores may be present or absent, hyaline to brown, spherical, formed singly, in chains or in clumps, intercalary or terminal.
What is your identification?Cylindrocarpon lichenicola