摘要：Gross examination revealed multiple fragments of brownish black soft tissue with largest one measuring 1.0 x 0.8 cm in size. Microscopically,hematoxylin and eosin staining revealed the presence of a mycelium with septate hyphae branching at acute angle of 45 degrees (Fig.1). The morphology of the organism suggested that of the species Aspergillus. The nasal epithelial tissue was free of significant inflammation,granuloma or invading hyphae suggestive towards a diagnosis of non-invasive sinus fungal ball. Our patient had no evidence of invasion,and five months afte.
