The sections, which were stained with hematoxylin-eosin and Gomori methenamine-silver (Figure 3), showed numerous septated and branching hyphal forms throughout the dermis. The organisms both surrounded blood vessels and were seen within vessel lumina. The morphological features of the acutely angled, branching, septated hyphal forms seen on microscopic examination of tissue biopsy specimens and aspirates from the cutaneous lesion were consistent with aspergillosis. The tissue culture of skin from the lesion yielded Aspergillus organisms.
A Painful Erythematous Forearm Nodule in a Girl With Hodgkin Disease. Arch Dermatol. 2000;136(9):1165-1170. doi: