Short report: An imported case of cystic echinococcosis in Japan diagnosed by imaging and serology with confirmation of Echinococcus granulosus-specific DNA sequences.

A Ito Department of Parasitology, Gifu University School of Medicine, Japan.

Search for other papers by A Ito in
Current site
Google Scholar
PubMed
Close
,
M Okamoto Department of Parasitology, Gifu University School of Medicine, Japan.

Search for other papers by M Okamoto in
Current site
Google Scholar
PubMed
Close
,
T Ishiguro Department of Parasitology, Gifu University School of Medicine, Japan.

Search for other papers by T Ishiguro in
Current site
Google Scholar
PubMed
Close
,
L Ma Department of Parasitology, Gifu University School of Medicine, Japan.

Search for other papers by L Ma in
Current site
Google Scholar
PubMed
Close
,
H Suzuki Department of Parasitology, Gifu University School of Medicine, Japan.

Search for other papers by H Suzuki in
Current site
Google Scholar
PubMed
Close
,
A Yasui Department of Parasitology, Gifu University School of Medicine, Japan.

Search for other papers by A Yasui in
Current site
Google Scholar
PubMed
Close
,
H Shigeta Department of Parasitology, Gifu University School of Medicine, Japan.

Search for other papers by H Shigeta in
Current site
Google Scholar
PubMed
Close
,
T Matsuura Department of Parasitology, Gifu University School of Medicine, Japan.

Search for other papers by T Matsuura in
Current site
Google Scholar
PubMed
Close
,
T Hosokawa Department of Parasitology, Gifu University School of Medicine, Japan.

Search for other papers by T Hosokawa in
Current site
Google Scholar
PubMed
Close
, and
J J Chai Department of Parasitology, Gifu University School of Medicine, Japan.

Search for other papers by J J Chai in
Current site
Google Scholar
PubMed
Close
Restricted access

We report one case of cystic echinococcosis (CE) in Japan in a native of Nepal. Ultrasonography and computed tomography scan of the liver revealed unique cystic lesions with or without daughter cysts of Echinococcus granulosus. Immunoblot analysis using crude antigens of E. multilocularis and cyst fluid of E. granulosus, without reference to these image analyses, strongly suggested this was a case of CE. We found protoscoleces in surgically removed hepatic lesions and analyzed the mitochondrial cytochrome c oxidase subunit I (COI) gene by the polymerase chain reaction. Based on the similarity in DNA sequences of the COI gene of this Echinococcus spp. with that of previously reported sheep-dog strain (GI), the parasite was considered to be the so-called common sheep strain of E. granulosus.

Save