Species of "Acremonium" are morphologically very similar, making identification difficult. Shown in the image is a microscopic image of "A. falciforme", an example showing the morphological similarities to "A. strictum". Cases involving different species of "Acremonium" are often reported as simply as an "Acremonium" species, which reduces the amount of accurate information on the clinical presentation of "A. strictum". Isolates of phylogenetically remote species of "Acremonium" show considerable convergence. As a human pathogen, diagnosis is made in isolation and identification of the fungus from granules in tissue and the presence of hyphae in microscopic examination of cutaneous biopsy and discharge.