Unknown 12

Mould identification: a virtual self assessment

Case history

A 10 year-old girl with idiopathic aplastic anaemia presented with pancytopenia and febrile neutropaenia. Immunosuppressive therapy included antithymocyte globin, cyclosporin and high dose methylprednisolone. A progressive swelling with blisters and ulceration developed on her right thigh. Direct examination of biopsy tissue revealed abundant filamentous hyphae and all cultures grew the fungus shown below.

Unknown 12 Direct microscopy

Direct microscopy

Unknown 12 culture

Culture (24 hours growth)

Unknown 12 microscopy - 1


Unknown 12 microscopy - 2


Unknown 12 growth temperature studies

Growth temperature studies

What is your identification?