A metastrongyle worm extracted from the anterior chamber of the right eye of a patient in Sri Lanka belongs to the genus Parastrongylus and probably to a yet undescribed species, related to P. cantonensis well known to infect man. It is mostly a parasite of rodents, wandering in man and unadapted to this host. Evidence for this lack of adaptation are that the specimen is undergoing necrosis (teratological specimen) and is located in an organ with little immunological defences.
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