Unknown 33

Mould identification: a virtual self assessment

Case history

A 64-year-old male presented with an ulcerating lesion on the leg.  He remembered receiving a penetrating injury by a thorn from an African Acacia tree some 9 months earlier. A biopsy showed the presence of fungal elements and the culture grew the fungus shown below.

Unknown 33 clinical appearance

Clinical appearance

Unknown 33 histopathology (PAS stain)

Histopathology (PAS stain)

Unknown 33 culture


Unknown 33 microscopy


What is your identification?