Overview
Generalized paragonimiasis is a parasitic disease caused by lung flukes of the genus Paragonimus, characterized by multisystem involvement including the lungs, pleura, liver, and brain, often presenting with eosinophilia and extrapulmonary manifestations. 1Diagnosis
Key Clinical Features: Eosinophilia (100%), pleural effusion (81.8%), hepatomegaly (54.5%), ascites (54.5%), subcutaneous nodules (45.5%).
Diagnostic Tests: Positive anti-parasite serological tests from a reliable CDC laboratory.
Common Misdiagnoses: Tuberculosis, pneumonia, intracranial space-occupying lesions, brain abscess.
Geographical and Exposure History: Important for endemic areas like Sichuan and Yunnan, with history of raw crab or crayfish consumption. 1Management
First-Line Treatment: Praziquantel (PZQ) at 150 mg/kg for 3 days.
Adjunctive Treatment: Triclabendazole considered for suboptimal response to PZQ (specific dosing details incomplete in abstract).
Treatment Efficacy: Single course of PZQ may be insufficient; 63.6% required additional courses. 1Special Populations
Pediatrics: Diagnosis challenging due to non-specific symptoms; treatment with PZQ may require repeated courses. 1Key Recommendations
Confirm diagnosis using reliable serological tests from CDC laboratories for endemic regions. (Evidence: Moderate 1)
Initiate treatment with praziquantel at 150 mg/kg for 3 days; consider additional courses if symptoms persist. (Evidence: Weak 1)
Monitor for common misdiagnoses such as tuberculosis and pneumonia, especially in endemic areas. (Evidence: Expert opinion 1)References
1 Qian M, Li F, Zhang Y, Qiao Z, Shi Y, Shen J. A retrospective clinical analysis of pediatric paragonimiasis in a Chinese children's hospital from 2011 to 2019. Scientific reports 2021. link