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Ocular Sparganosis: The First Report of Spirometra ranarum in Thailand
The Korean Journal of Parasitology ; : 577-581, 2020.
Article | WPRIM | ID: wpr-833814
ABSTRACT
A 22-year-old Thai man from the Northeast region presented with acute eye swelling, itching, and discharge on his left eye. He was suspected of having gnathostomiasis and treated with albendazole and prednisolone for 3 weeks. Nine months later, he was treated with high-dose oral prednisolone for the preliminary and differential diagnoses with thyroid-associated orbitopathy and lymphoma. He had been administered prednisolone intermittently over a few years. Then he developed a painless movable mass at the left upper eyelid and recurrent pseudotumor oculi was suspected. The surgical removal of the mass was performed. A white pseudosegmented worm revealed a definite diagnosis of ocular sparganosis by a plerocercoid larva. Molecular diagnosis of the causative species was made based on the mitochondrial cytochrome c oxidase subunit 1 (cox1) gene. Proper technique of extraction and amplification of short fragments DNA from formalin-fixed paraffin-embedded tissue successfully identified parasite species. The result from the sequencing of the PCR-amplified cox1 fragments in this study showed 99.0% sequence homology to Spirometra ranarum. This is the first report of S. ranarum in Thailand.
Full text: Available Index: WPRIM (Western Pacific) Journal: The Korean Journal of Parasitology Year: 2020 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Journal: The Korean Journal of Parasitology Year: 2020 Type: Article