Unknown C

Mould identification: a virtual self assessment

Case history

An otherwise healthy 25 year old male presented with an ulcerated, erythematous plaque on a tattooed area of the left forearm. This lesion had begun 15 months previously as a papule, which he thought, resulted from a scratch received whilst installing insulation. Slow enlargement had occurred despite several courses of antibiotics and two attempts at excision. Culture from a skin biopsy grew the fungus shown below.

Unknown c clinical presentation

Clinical presentation: skin lesions

Unknown c culture


Unknown c microscopic morphology

Microscopic morphology of Unknown C showing broad, sparsely septate coenocytic hyphae. No spores were seen.

What is your identification?