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Stictodora sp. (Trematoda: Heterophyidae) recovered from a man in Korea
Jong Yil Chai,Sung Jong Hong,*Soon Hyung Lee and Byong Seol Seo**
Department of Parasitology and Institute of Endemic Diseases, College of Medicine, Seoul National University, Seoul 110-460, Korea.
Abstract
Two adult specimens of heterophyid fluke, which belong to the genus Stictodora, were collected from the stool of a 24-year old man after chemotherapy. The flukes were morphologically characterized by their small body size (0.90~0.98 mm long and 0.38 mm wide) and peculiar structure of ventrogenital sac with armed gonotyl (with about 12~15 spines) not enveloping genital pore. Species identification is deferred until more worms are obtained, although they closely resemble Stictodora fuscatum (Onji and Nishio, 1916). The patient used to eat raw flesh of mullets and gobies, which are regarded as the infection source of Stictodora sp., together with 3 other kinds of heterophyids described elsewhere. This is the first record of human Stictodora infection in the literature.
Figures
Fig. 1~4 Stictodora sp. recovered from a man after chemotherapy.
1. Whole specimen. Lateral margins are a little distorted due to anthelmintic treatment (see details of organs in Fig. 5).
2. Ventrogenital sac of the worm in Fig. 1. Note the number and arrangement of gonotyl spines (left) and the genital atrium (right).
3. Intrauterine eggs, with thick-shell.
4. Ventrogenital sac of the other worm.
Fig. 5 Ventral view of Stictodora sp. showing illustrations of body organs.
Table 1 Stictodora spp. reported from southeast Asia
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