H & E stained sections of the biopsy showed an aggregates of broad, aseptate
hyphae with right angled, irregular branching (Figure 3) and a few rosettes of needle shaped crystals (Figure 4).
Despite the evidence of broad aseptate
hyphae from skin biopsies, the relative rarity of pulmonary mucormycosis led us to seek specific diagnosis with bronchoscopy.
These fungi are often thought to be aseptate
, rather than pauciseptate.
Menhaden lesions were characterized by necrotizing dermatitis and myositis with severe chronic granulomatous inflammation containing aseptate
fungal hyphae (23,24).
hyphae of arbuscular mycorrhizal fungi grew parallel to each other.
The diagnosis was established by direct microscopic evidence of broad, aseptate
or sparsely septate ribbon-like hyphae with right angle branching in KOH wet mount and histopathological examination of stained sections.
A Grocott-Gomori methenamine--silver nitrate stain demonstrated broad aseptate
hyphae with obtuse-angle branching.