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Case 83. Rhinosporidiosis (42 y-o M)
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Excised nasal polypoid lesion in a Kenyan adult
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Key words : Rhinosporidium seeberi, nasal polyp
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| Sporangia of varying sizes are formed just beneath the squamous metaplastic epithelium. Mature sporangia contain numerous spores (HE). Inflammatory change is mild. | A large mature sporangium produces numerous spores, while a smaller immature sporangium contains amorphous basophilic cytoplasm (HE, high power). | |
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| The mature sporangium is Grocott-positive, while the immature sporangium is unreactive. Rhinosporidium seeberi is unculturable. | ||
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