case_images: PMC10911191_01
case_images: Photomicrographs showing: (a)Numerous thick walled sporangias with surrounding giant cell reaction (HE 40x), (b)Sporangias containing endospores (HE 40x), (c)Endospores and sporangia wall positive for PAS-D (100x), (d)Endospores and sporangia wall positive for GMS (100x)
case_images: TP-14-47-g001.jpg
case_images: PMC10911191_01_TP-14-47-g001.jpg
case_images: tp_5_23-f001
case_images: The microscopic sections revealed numerous mature large thick-walled sporangia with numerous endospores approximately 6-10 mu each and immature sporangia with giant cell reaction around ruptured sporangia and dense acute on chronic [Figure 1a,b] inflammation with overlying hyperplastic respiratory and squamous epithelium and foci of calcified spores. Grocott methenamine-silver (GMS) and periodic acid-Schiff (PAS) [Figure 1c,d] diastase stains were positive in sporangia and spores.