https://academic.oup.com/omcr/article/2017/11/omx083/4616322

Paragonimiasis is an important food-borne parasitic zoonosis caused by trematodes of genus Paragonimus. We report case series of paragonimiasis with common symptoms of cough with blood tinged sputum, shortness of breath, chest pain with occasional fever, eosinophilia and radiological findings mimicking pulmonary tuberculosis and had taken anti-tubercular drug despite all investigation negative for tuberculosis without improvement. They all had common history of consumption of raw/undercooked crab. There is a local belief in remote villages of Nepal that eating raw crab helps in healing bone fracture and cure jaundice. Microscopic examination of sputum sample revealed the ova of Paragonimus species. All patients were treated with praziquantel and got improved. Pulmonary paragonimiasis is endemic in Southeast Asia including Nepal. So, it has to be differentiated from pulmonary tuberculosis in the patient with symptoms of cough, chest pain and hemoptysis with eosinophilia and having history of consumption of raw/undercooked crabs or crayfish.

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