Subcutaneous abscess of neck, a granulomatous reaction to eggs of Paragonimus: a case report from northern Thailand.

The first case report of human paragonimiasis in Thailand was described by Prommas in 1928, a patient from Lorn Sak District, Phetchabun Pro­ vince, north Thailand. The second was by Harina suta et al in 1957, in a patient from Saraburi Pro­ vince, central Thailand (Miyazaki and Vajra­ sthira 1967). Many epidemiological surveys have been carried out after and resulted that there were at least six species of Paragonimus in Thailand (Yokogawa et aI, 1962; Vanijanont8. et al. 1981; Benjapong et aI1984). Only two species have been found to be infective to man in Southeast Asia including Thailand: P. westermani and P. hetero­ tremus. The latter has been known to cause the majority of paragonimiasis in Thailand (Vanija­ nonta, 1981). Saraburi, Nakhon Nayok the ad­ jacent province and Loei Province reveal the endemic areas (Miyazaki and Vajrasthira, 1967). Paragonimiasis has been found sporodically in Maharaj Nakorn Chiang Mai Hospital, Chiang Mai, Thailand. There were three unpublished cases of pulmonary and two of cerebral paragoni­ miasis admitted in this hospital. The species invol­ ved in all mentioned cases was assumed , to be P. westermani without identifying any adult worms.