Sporulation from flask-shaped, pigmented projections is commonly observed in which one of the following fungi?: (A) E. floccosum, (B) C. immitis, (C) P. verrucosa, (D) M. canis
Answer is C. Microscopic examination of fungal isolates is essential to the identification of the organism.Phialophora verrucosa is one of the causes of chromoblastomycosis, a chronic localized infection of the skin and subcutaneous tissue. Microscopically, short or somewhat elongated, flask-shaped, pigmented phialides are seen. The collarettes are vase-shaped and darkly pigmented.