Pentastomiasis: A Common Finding at Autopsy Among Malaysian Aborigines

K. PrathapDepartment of Pathology, Faculty of Medicine, University of Malaya, and Gombak Aborigine Hospital, Kuala Lumpur, Malaysia

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K. S. LauDepartment of Pathology, Faculty of Medicine, University of Malaya, and Gombak Aborigine Hospital, Kuala Lumpur, Malaysia

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J. M. BoltonDepartment of Pathology, Faculty of Medicine, University of Malaya, and Gombak Aborigine Hospital, Kuala Lumpur, Malaysia

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In a series of 30 consecutive autopsies on Malaysian aborigines, pentastomid infection was found in 45.4% of adults. This is believed to be the highest recorded prevalence rate in man. The liver and lungs were the viscera most frequently infected; more than one organ was infected in three cadavers. Three types of histologic lesion, the encysted pentastomid nymph, the necrotic pentastomid granuloma, and the “cuticle” granuloma were noted. The likely sources of the infections were thought to be either the drinking of river water contaminated with the nasal secretions of infected snakes, or the eating of partially cooked snake meat.

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