Fasciolia spp. are common trematode infestations worldwide. Fasciolia spp. may lead to hepatic diseases in the acute phase and may cause biliary diseases in the chronic phase. In addition, Fasciolia spp. may rarely cause extrahepatic signs and symptoms. The clinical manifestations of fascioliasis are divided into three groups: typical, atypical, and ectopic. Eosinophilic pneumonia is an atypical presentation of acute fascioliasis and it has been reported very rarely. Herein, we report a boy with marked blood eosinophilia and eosinophilic pneumonia who was diagnosed with fascioliasis by serologic tests and abdominal USG. The patient recovered completely following triclabendazole treatment.
Key words: fascioliasis, eosinophilic pneumonia, eosinophilic leukemoid reac tion, child.Fascioliasis is a zoonotic foodborne trematode infection caused by Fasciola spp. which are flat leaf-like worms known as liver flukes. The two species that infect humans are Fasciola hepatica and Fasciola gigantica 1 . Other most prominent liver flukes are Clonorchis sinensis, Opisthorchis felineus and Opisthorchis viverrini 2 . World Health Organization estimates that at least 2.4 million people are infected with fascioliasis in more than 70 countries worldwide, with several million at risk. Fasciolia spp. have worldwide distribution and not only animal cases but also human cases have been reported 1,2 . Humans are infected by ingestion of watercress, salad vegetables, and water which are contaminated with metacercariae 1,3 . Clinical spectrum of the infection is variable; however, fascioliasis cases with lung involvement are very rare. Herein, we report a rare presentation of eosinophilic pneumonia accompanied by eosinophilic leukemoid reaction in the course of fascioliasis.
Case ReportA 4-year-old boy presented with a one-month history of abdominal pain, poor appetite, and occasional fever. He had lost one kilo in the last one month and had no history of worm defecation. Physical examination was normal and the laboratory studies revealed peripheral blood leukocyte count 32,300/ mm 3 ; hemoglobin 10.9 g/dl; platelet count 29,000/mm 3 ; C-reactive protein (CRP) level 5.7 mg/L; erythrocyte sedimentation rate 32 mm/h with 64% eosinophils, 18% lymphocytes, 2% monocytes, and 16% polymorphonuclear leukocytes. Total immunoglobulin E level was 906 IU/mL (0-5) and the Ig G level was normal. Renal and hepatic function tests were normal. The patient had severe eosinophilia (absolute eosinophil count was 20,672/mm 3 ) and was admitted to the hospital for the investigation of the etiology of eosinophilic leukemoid reaction. Parasite stool tests by "formalin ether sedimentation" and "saturated sodium chloride flotation" methods were negative three times. Echinococcus granulosus indirect hemagglutination assay (IHA) was negative but Fasciola hepatica IHA, which was repeated twice, was positive at a titer of 1/640. Toxocara IgG ELISA was slightly positive (0.539; range, 0-0.500) at the beginning since second repetition was negative, it was considered as ...