Thia report deals with an imported case of calamar swelling suspective of loiasis, who had been in Nigeria, Africa for 2 years. This 33-year-old Korean technician was admitted to Severance Hospital, Yonsei University Medical Center, because of erythematous swellings on left hand and foot. His peripheral blood showed persistent eosinophilia (over 30% of WBC), increased IgE(1,000unit/ml) and significantly high antialarial antibody titer with ensyme immunoassay, although no microfilaria was detected on the periplleral blood films. Under the impression of Loa lea infection diethylcarbamasine was administered for a month. Four months later mobile swellings and eosinophilia disappeared, and anti-filarial antibody titers were normalized. It is assumed that the patient had suffered from Loa lea infection, which is the first report on loiasis in Korea.