He had been working in Rukwa region of

Tanzania from April 2009 to March 2010 where he often went to Epigenetic inhibitor swim and bathe in Mpanda River and Tanganyika Lake. The hematuria started 2 weeks before his return from Tanzania. He was treated for suspected cystitis, which did not improve, and was admitted to a local hospital. Then, he was suspected to have tuberculosis of the urinary bladder. Despite antituberculosis treatment with pyrazinamide/isoniazid for 4 months, he still had the visible hematuria. On August 3, he was transferred to the urology department for further diagnosis and treatment. Physical examination revealed a healthy male with no abnormal signs on abdominal and genitourinary examination. The results of blood biochemical and hematological tests were normal. Cystoscopy was performed, and erosion and ulceration in the bladder trigone area were observed. Histological sections of the biopsy specimen showed a diffuse granulomatous process with an intense inflammatory infiltrate of mostly plasma lymphocytic cells, eosinophils, and neutrophils. Multinucleated giant cells were also found, but parasite eggs were not seen. Because Ponatinib in vitro of the suspected parasitic infection, 24-hour urine sample was collected and examined by sedimentation, which revealed nonglomerular red blood cells and eggs of S haematobium in the urine (Figure 1A). He was treated with praziquantel

tablet (40 mg/kg/day in three doses for a single day). Three weeks after treatment, hematuria disappeared and the eggs in the urine were eliminated. A 42-year-old man from Yuanyang county of Henan Province worked in Caxito city in Angola from April 2008 to April 2011. During GPX6 this period, he and his colleagues sometimes went swimming in Kwanza River. He complained of abdominal pain and hematuria 1 month after his return, and was first suspected

to have renal calculi at a local clinic. On July 29, 2011, he was admitted to a local central hospital with progressive hematuria. He was diagnosed with tumor of the bladder on the basis of cystoscopy. He underwent open laparotomy for resection of the mass. But, he still had visible hematuria 2 months after the surgery. On October 14, he was transferred to the urology department. Physical examination was unremarkable, as were blood biochemical and hematological tests. The subsequent abdominal ultrasound examination showed bladder wall irregularities and polyps; hydronephrosis of the right kidney and hydroureter were also observed. Eggs of S haematobium were found in the urine. Following this, formalin-fixed, paraffin-embedded tissue sections of the bladder resection specimen were re-examined and many S haematobium eggs were found in the eosinophilic granuloma (Figure 1B). He was treated then with praziquantel (same dosage as in case 1). After 1 month, the laboratory findings indicative of hematuria returned to normal.