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Korean J Parasitol > Volume 33(2):1995 > Article

Brief Communication
Korean J Parasitol. 1995 Jun;33(2):139-144. English.
Published online Jun 20, 1995.  http://dx.doi.org/10.3347/kjp.1995.33.2.139
Copyright © 1995 by The Korean Society for Parasitology
Two human cases of Thelazia callipaeda infection in Korea
Sung-Tae Hong,*1Yun-Kyu Park,1Sang-Kum Lee,2Jin-Hyung Yoo,3Ae-Seek Kim,4Youn-Hee Chung,5 and Sung-Jong Hong6
1Department of Parasitology and Institute of Endemic Diseases, Seoul National University College of Medicine, Seoul 110-799, Korea.
2Department of Clinical Pathology, Seoul Paik Hospital, Seoul 100-032, Korea.
3Department of Ophthalmology, Seoul Paik Hospital, Seoul 100-032, Korea.
4Kim's Clinical Pathology, Seoul 137-060, Korea.
5Somang Ophthalmology Clinic, Seoul 137-060, Korea.
6Department of Parasitology, College of Medicine, Gyeongsang National University, Chinju 660-280, Korea.
Received May 08, 1995; Accepted May 15, 1995.


Thelazia callipaeda were observed from a 7-month old baby who lived in Uijongbu in 1989 and from a 42-year old man who lived in Anyang in 1994. These are the 23rd and 24th records of human thelaziasis in Korea as the literature are concerned.


Figs. 1-4
Light microscopic findings of male T. callipaeda from the case 1. Fig. 1. Whole worm of a male T. callipaeda. (Bar unit: 1 mm) Fig. 2. Anterior portion of a T. callipaeda showing th characteristic buccal cavity. Fig. 3. Tail portion of a male T. callipaeda showing a long spicule (arrow head). Fig. 4. preanal papillae are lining in a row (arrow heads).

Figs. 5-16
Figs. 5-14. Scanning electron microscopic wiews of T. callipaeda from the case 1. Fig. 5. Front view of the buccal cavity showing margins of the cavity and esophageal lumen (E). The anterior margin is beset with a pair of amphids (Am), sensory papillae (P), cuboidal elevations (arrow heads) and then connections (open triangle). Am: amphid, E: esophagus, P: papillae, arrowhead: cuboidal shape thickening of cuticle, empty triangle: gull shaped cuticular thickening. Fig. 6. A pair of sensory papillae ard closely observed at the outer anterior margin. Fig. 7. An amphid is magnified showing a ventral slit. Fig. 8. The other amphid is covered by an artifact. Fig. 9. Transverse cuticular striations at the anterior portion, which are compact. Figs. 10-11. Transverse cuticular striations at the middle portion are less dense than those at the anterior end. Fig. 12-13. Tail portion of a male with 7 preanal sensory papillae. Fig. 14. One preanal papilla consists of a central nerve and with surrounding crateriform elevation of the cuticle. Fig. 15. Tail portion of a female T. callipaeda. An: anus, Pm: phasmid. Fig. 16. Higher magnification of th anus.

1. Ahn YK, et al. J Wonju Coll Med 1993;6(1):224–229.
2. Choi WY, Youn JH, Nam HW, Kim WS, Kim WK, Park SY, Oh YW. Scanning electron microscopic observations of Thelazia callipaeda from human. Korean J Parasitol 1989;27(3):217–223.
3. Hong ST, Lee SH, Han H. A Human case of thelaziasis in Korea. Korean J Parasitol 1985;23(2):324–326.
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