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Updated: Aug 10, 2026
08:23
Phenotypic Analysis of Rodent Malaria Parasite Asexual and Sexual Blood Stages and Mosquito Stages
Published on: May 30, 2019
[Clinicopathologic analysis of paragonimiasis]
1Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.
Summary
Paragonimiasis, a lung infection from eating raw crabs, is increasingly diagnosed. Pathological findings like Charcot-Leyden crystals and parasite parts confirm the diagnosis, which must be differentiated from tuberculosis and cancer.
Area of Science:
- Medical Parasitology
- Infectious Diseases
- Pathology
Context:
- Paragonimiasis is a parasitic lung infection caused by Paragonimus species.
- Recent trends suggest an increasing incidence in urban areas due to population migration.
- Accurate diagnosis is crucial for effective treatment and public health management.
Purpose:
- To investigate the clinical manifestations and pathological characteristics of paragonimiasis.
- To analyze epidemiological data, clinical symptoms, and pathological findings from diagnosed cases.
- To highlight diagnostic challenges and differential diagnoses for pulmonary paragonimiasis.
Summary:
- A review of nine cases diagnosed at Peking Union Medical College Hospital over 20 years revealed commonalities in clinical presentation and pathology.
- Key symptoms included fever, chest pain, and hemoptysis, often linked to consuming raw or undercooked crabs.
- Pathological hallmarks include lacunae formation, Charcot-Leyden crystals, parasite remnants, and eosinophilic infiltration.
Impact:
- This study underscores that paragonimiasis may be more prevalent than previously assumed.
- Early and accurate diagnosis, supported by pathological evidence and clinical correlation, is essential.
- Distinguishing paragonimiasis from pulmonary tuberculosis and lung cancer is critical for appropriate patient management.
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