Archives of pathology & laboratory medicine · 1996
Conjunctival oculosporidiosis in east Africa caused by Rhinosporidium seeberi.
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Pe'er J, Gnessin H, Levinger S, Averbukh E, Levy Y, Polacheck I
Аннотация
BACKGROUND AND OBJECTIVE: Conjunctival rhinosporidiosis is an infectious disease rarely recorded outside the Indian subcontinent. The disease is caused by Rhinosporidium seeberi, an endosporulating microorganism of uncertain taxonomic classification. We report a series of cases manifesting this infection.
MATERIAL AND METHODS: The demographic, clinical, and histopathologic data of 14 cases of conjunctival rhinosporidiosis on record at our Ophthalmic Pathology Laboratory were reviewed.
RESULTS: All cases were from East Africa; 10 were from Malawi and 4 from Kenya. Ten specimens were from males and three from females. Their age ranged from 7 to 20 years. All patients were treated by surgical excision, and no recurrence was recorded. None of the cases was diagnosed clinically as rhinosporidiosis. Histologically, all stages of the organism's life cycle could be found in the excised tissue, from small trophocytes to large sporangia-containing sporoblasts. There were changes in histochemical stainings with growth and maturation. In general, the inflammation was of chronic nongranulomatous type.
CONCLUSIONS: Conjunctival rhinosporidiosis is a rare infectious disease that typically appears in young males in rural regions, and that can be treated by surgical excision. It typically causes chronic nongranulomatous inflammation. Various stages of the R seeberi life cycle can be seen in the affected tissue.
MATERIAL AND METHODS: The demographic, clinical, and histopathologic data of 14 cases of conjunctival rhinosporidiosis on record at our Ophthalmic Pathology Laboratory were reviewed.
RESULTS: All cases were from East Africa; 10 were from Malawi and 4 from Kenya. Ten specimens were from males and three from females. Their age ranged from 7 to 20 years. All patients were treated by surgical excision, and no recurrence was recorded. None of the cases was diagnosed clinically as rhinosporidiosis. Histologically, all stages of the organism's life cycle could be found in the excised tissue, from small trophocytes to large sporangia-containing sporoblasts. There were changes in histochemical stainings with growth and maturation. In general, the inflammation was of chronic nongranulomatous type.
CONCLUSIONS: Conjunctival rhinosporidiosis is a rare infectious disease that typically appears in young males in rural regions, and that can be treated by surgical excision. It typically causes chronic nongranulomatous inflammation. Various stages of the R seeberi life cycle can be seen in the affected tissue.