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Studies on the Lungfluke Paragonimus iloktsuenensis Chen, 1940

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Authors
Seo, Bvong-Seol; Koo, Bon-yong
Issue Date
1971-03
Publisher
서울대학교 의과대학
Citation
Seoul J Med, Vol.12 No.1, pp. 31-43
Abstract
During the period of August, 1970 to February,
'1971, 52 rodent hosts (Rattus noruegicus,
Rattus rattus and Apodemus agrariusy collected
from the two areas at the estuaries of
the Nakdong and the Sumjin Rivers, South
Kyongsang Do, Korea were examined to prove
the presence of P. iloktsuenensis of which
metacercariae have already been found in the
crab hosts (Sesarma dehaani) at the one of
the above two areas.
The results of this survey are as follows:
Five rats, Rattus noruegicus (12.5%) were
found to be infected with the adult worms
was obtained. These worms are enclosed singly
in the worm capsules in the right lobe of the
lung.
The detailed study on the morphology of
the adult worms collected was made for the
specific diagnosis and the comparative observation
with the worms obtained from albino
rats experimentally infected with the metacercariae
of P. iloktsuenensis, were also conducted
for the definite identification.
The following structural characteristics are
recognized; the cuticular spines are mostly
grouped in single rows, indicating those of
ohirai-iloktsuenensis type by Miyazaki (1965).
The feature of ovary branched into a coral
appearence closely coincides with the Chen's
original description of P. iloktsuenensis.
The average ratio of the size of the testis to
the ovary is 2. 62: 1. The average ratio of
body length to the distance between the
anterior end and the middle of the acetabulum
is 2. 76: 1. The shape of eggs is subspindle
(67%). The maximum width of eggs is noticed
on the middle of the egg (77%).
These observations are closely resembled to those described on the known specimens of
P. iloktsuenensis by Isshiki (1962) and Tornimura
(1959).
From the above observations, it is certainly
assumed that the present specimen is identical
with Paragonimus iloktsuenensis Chen, 1940.
Therefore, this is the first account of the
occurrence of P. iloktsuenensis in the natural
final host, Rattus noroegicus in Korea.
ISSN
0582-6802
Language
English
URI
https://hdl.handle.net/10371/6333
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Appears in Collections:
College of Medicine/School of Medicine (의과대학/대학원)Dept. of Medicine (의학과)The Seoul Journal of MedicineThe Seoul Journal of Medicine Vol. 12 No.1 (1971)
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