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Updated: Jun 19, 2026

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet

Published on: November 4, 2015

[Paragonimiasis Westermani associated with pseudochylothorax].

Takayuki Jujo¹, Akira Suda, Misuzu Yahaba

¹Department of Respiratory Medicine, Kimitsu Chuo Hospital.

Nihon Kokyuki Gakkai Zasshi = the Journal of the Japanese Respiratory Society

|November 4, 2009

Summary

A rare case of pseudochylothorax caused by Paragonimiasis Westermani was identified. Treatment with praziquantel effectively reduced pleural effusion and antibody titers, suggesting a successful therapeutic approach for this parasitic infection.

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Last Updated: Jun 19, 2026

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet

Published on: November 4, 2015

Area of Science:

Parasitology
Pulmonology
Medical Diagnostics

Background:

Paragonimiasis Westermani is a parasitic lung fluke infection.
Pseudochylothorax is a rare condition characterized by milky pleural effusion due to high lipid content.
The association between Paragonimiasis Westermani and pseudochylothorax is not well-documented.

Observation:

A 67-year-old woman presented with right pleural effusion after consuming raw crab and other wild game.
Pleural fluid analysis revealed an exudative, milky-white effusion with high cholesterol, indicative of pseudochylothorax.
High antibody titers against Paragonimus westermani were detected in both pleural fluid and serum.

Findings:

Diagnosis of Paragonimiasis Westermani was confirmed via microplate ELISA.
Treatment with praziquantel (75 mg/kg for 3 days, 2 courses) led to amelioration of pleural effusion.
A significant decrease in anti-Paragonimus westermani antibody titers was observed post-treatment.

Implications:

This case highlights a rare presentation of Paragonimiasis Westermani as pseudochylothorax.
It underscores the importance of considering parasitic infections in the differential diagnosis of unexplained pleural effusions.
Praziquantel demonstrates efficacy in treating Paragonimiasis Westermani-induced pseudochylothorax.