Skip to content

Mould Identification: A Virtual Self Assessment

Excellent you have really done well.

Please find additional information below

Unknown 56 = Scopulariopsis brevicaulis

Case History
A 60 year old male presented with suspected onychomycosis of the toe nail. Direct microscopy of nail scrapings revealed the presence of fungal elements. The culture below was isolated.
Direct Microscopy (KOH mount)

KOH mount of infected nail material showing fungal hyphae and conidia.

Cultures of S. brevicaulis are fast growing, vary in color from white, cream, grey, buff to brown, black and are predominantly light brown.

Chains of single-celled conidia are produced in basipetal succession by a specialized conidiogenous cell called an annellide. Once again, the term basocatenate can be used to describe such chains of conidia where the youngest conidium is at the basal end of the chain. In Scopulariopsis, annellides may be solitary, in groups, or organized into a distinct penicillus. Conidia are globose to pyriform, usually truncate, with a rounded distal portion, smooth to rough, and hyaline to brown in color.

Typical conidia of S. brevicaulis.

Comment: Most members of the genus Scopulariopsis are soil fungi, however a few, in particular S. brevicaulis, have been reported as causative agents of onychomycosis and hyalohyphomycosis.

About Scopulariopsis Back to Virtual Assessment

What is your identification?

Neoscytalidium dimidiatum
Lomentospora prolificans
Scopulariopsis brevicaulis

Sorry, that answer is incorrect. Please try again.
School of Biological Sciences



Dr David Ellis