A 41-year-old man presented with right-upper-quadrant abdominal pain and a febrile sensation for 3 days. He had no specific medical history. He was employed as a butcher and used to eat raw liver. Physical examination revealed diffuse abdominal tenderness. Laboratory findings demonstrated a white blood cell count of 12,370/mm3 (normal range, 4,500 to 11,000) with an eosinophil count of 2,860/µL (<450/µL), total bilirubin level of 4.2 mg/dL (normal range, 0.2 to 1.2), aspartate aminotransferase of 213 IU/L (normal range, 5 to 40), alanine aminotransferase level of 192 IU/L (normal range, 0 to 40), alkaline phosphatase level of 298 IU/L (normal range, 44 to 119), and gamma glutamyl transpeptidase level of 473 IU/L (normal range, 12 to 73). Transabdominal ultrasonography and computed tomography revealed mild bile duct dilation with no definite cause. Magnetic resonance cholangiopancreatography (MRCP) also revealed no specific findings for acute cholangitis (). ERCP was performed for the diagnosis and treatment of the highly suspected choledocholithiasis. A cholangiogram did not reveal any findings specific for acute cholangitis (). IDUS was performed to evaluate occult bile duct diseases, such as small stones or sludge. A 2.0-mm-diameter IDUS probe with a frequency of 20 MHz (UM-G20-29R; Olympus, Tokyo, Japan) was inserted into the bile duct over a guidewire. The bile duct was examined while withdrawing the probe from the right intrahepatic duct into the papilla. At the beginning of the IDUS scan, crescent-layered wall thickening was apparent in the right main hepatic duct (). However, after a while, the thickened wall-like tubular structure detached from the ductal wall, and was then noted as an actively motile, hyperechoic tubular structure in the bile duct (, Supplementary Video 1 [available online at ]). We performed an endoscopic extraction of this “lesion.” A flat, leaf-shaped motile parasite was extracted from the bile duct using a balloon catheter after endoscopic biliary sphincterotomy. The worm was gently removed from the patient after capturing with grasping forceps (Olympus) (, Supplementary Video 2 [available online at ]). The leaf-shaped worm was identified macroscopically as F. hepatica (). The patient’s symptoms resolved rapidly following the extraction of the parasitic worm.
A 73-year-old man, farmer from Gorgan, a city in the north of Iran, who came because of fever and icterus since 1 week before presentation. He had no obvious symptoms since 1 week before admission when he developed progressive jaundice and episodic right upper quadrant pain especially after meal but unrelated to position or respiration. He also reported mild fever, anorexia, and generalized body pain during this period. To analyze his problem, abdominal sonography was performed in outpatient setting, which showed an increased liver echogenesity without the dilation of bile ducts and gall stone. Based oh the abovementioned symptoms, his primary care physician made a diagnosis of viral hepatitis, but the patient eventually developed constant high-grade fever and right upper quadrant pain. Therefore, he was referred to our hospital and was admitted. At the time of hospitalization, the temperature was 39.5°C, the pulse was 90 beats/min, and the respiratory rate was 18 breaths/min. The blood pressure was 110/65 mm Hg. On physical examination, the patient did not appear to be in severe pain, and there was mild jaundice. The lungs and heart sounds were normal. The abdomen was flat, and the bowel sounds were present. There was tenderness in the right upper and quadrant, with mild guarding but without rebound tenderness. No mass or hernia was detected. The arms and legs were well perfused. No abnormalities were found on rectal examination. His sonography at admission revealed minimal intrahepatic and mild extrahepatic biliary dilation, while other organs were normal and no stones were observed. Blood tests revealed mild normocytic normochromic anemia, while white blood cell and absolute eosinophil count were normal in the patient. The erythrocyte sedimentation rates were high (90 mm/h) and serum chemical analysis revealed the following values: albumin, 3.4 g/dl; alkaline phosphatase, 170 U/l (normal range, 53–128); alanine aminotransferase, 73 U/l (normal range, 10–35); aspartate aminotransferase, 54 U/l (normal range, 14–50); and total bilirubin, 8.9 mg/dl (normal range 0.3–1.2), with a direct bilirubin level of 5.7 mg/dl (normal,< 0.2). The white-cell count was 11 400/mm3, with 84% neutrophils and 1% eosinophils. The urine was orange and was positive for bile (++), protein (+), and urobilinogen (+). Because of the endemicity of leptospirosis, serologic test (indirect hemagglutination test) was done, which revealed negative result. A urine culture and multiple blood cultures were negative. Assays for the presence of hepatitis B antigen and antibody, hepatitis C antibody, and antimitochondrial antibodies were negative. Chest radiographs showed no abnormalities. Endoscopic retrograde cholangiopancreatography (ERCP) demonstrated extrahepatic biliary dilatation; the common bile ducts (CBDs) were about 12–15 mm in diameter, with a small filling defect in the distal part [].\nSerologic test for showed high titer against that (positive titer 1/80), and the detection of ova in stool documented infestation with this liver fluke. After diagnosis, triclabendazole was administered at a dose of 10–12 mg/kg for 1 or 2 days, after which the symptoms disappeared and biochemical values soon returned to normal, and the patient was discharged with good condition. During the follow-up, her jaundice subsided, and ultrasonography revealed an almost normal CBD in our patient.