• Main Authors: Min Seo, Hokyung Chun, Geunghwan Ahn, Kee-taek Jang, Sang-mee Guk
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Crassostrea gigas
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.511.1313; http://www.parasitol.or.kr/kjp/Synapse/Data/PDFData/0066KJP/kjp-44-87.pdf

With regard to the intestinal histopathology of hosts infected with intestinal trematodes, villous atrophy and crypt hyperplasia, with inflammatory reactions of the villous stroma are the most important findings (Chai and Lee, 2002). Gymnophalloides seoi (Digenea: Gymnophallidae) is an intestinal trematode that infects humans in the Republic of Korea (Chai et al., 2003), and is transmitted by the oyster Crassostrea gigas (Lee et al., 1995). Histopathological changes caused by G. seoi infection are similar to those observed in other intestinal trematode infections; however, the degree of histopathology was reported to be relatively mild (Chai et al., 2001). Since the first report of a patient with acute pancre-atitis being infected with G. seoi (Lee et al., 1993), attention has been paid to the possibility of mucosal tissue invasion and extraintestinal migration by G. seoi (Chai et al., 2001, 2003). It is noteworthy that other species of gymnophallids have been recovered from the bursa Fabricii, gallbladder, and intestines, of shore birds (Yamaguti, 1971; Schell, 1985). Therefore, G. seoi has been suspected to be capable of causing infections in the pancreatic duct of man and animals. However, few studies have been performed to elucidate this point. Here, we incidentally found a human case infected with G. seoi, in which the fluke had invaded mucosal lymphoid tissue. A 65-year old Korean man, living in Mokpo-city, Jeollanam-do, visited a local clinic with clinical com-plaints of right upper quadrant pain and indigestion � Case Report � A case of colonic lymphoid tissue invasion by Gymnophalloides seoi in a Korean man