A 24-year old man presented with pain in right upper abdomen with fever for five days. Physical examination revealed high grade fever and tachycardia. There was tenderness and guarding in right hypochondrium. There was bilateral pedal edema. Hematological investigations revealed a hemoglobin (Hb) level of 11.2 g/dL and white blood cell (WBC) count of 18,400/mm3 (normal range, 4,000-11,000/mm3). The biochemical investigations showed a blood urea nitrogen (BUN) of 34 mg/dL (normal range, 15-40 mg/dL), serum creatinine of 1.1 mg/dL (normal range, <1 mg/dL). Liver functions tests showed a total bilirubin of 1.5 mg/dL (normal range, <1 mg/dL), serum alkaline phosphatase (ALP) of 178 IU/L (normal range, 40-280 IU/L), aspartate aminotransferase (AST) 32 IU/L (normal range, <40 IU/L), alanine aminotransferase (ALT) 48 IU/L (normal range, <40 IU/L). Chest X-ray was normal. Ultrasound at admission showed a large (8.6×7.3×6.2 cm), volume 202 mL, heterogeneously hypoechoic lesion with internal echoes in the caudate lobe suggestive of liver abscess. On ultrasonography, the abscess was compressing the intra-hepatic IVC with abnormal color fill (slowed down) and flow pattern. Magnetic resonance imaging (MRI) with magnetic resonance cholangiopancreatography (MRCP) was performed which confirmed 6.9×6 cm abscess in the caudate lobe causing eccentric compression over the intrahepatic part of IVC (, ). There was a mass effect with compression of the main portal vein and the common hepatic duct just after the ductal confluence, however, the right and left hepatic ducts and intra-hepatic biliary radicals were not dilated. The patient tested positive for amoebic antibody by enzyme-linked immunosorbent assay (ELISA) test. The patient was started on broad spectrum antibiotics and metronidazole for two weeks. After initiating the treatment, there was a gradual amelioration in the fever and abdominal pain. Repeat ultrasound by the end of first week revealed a gradual reduction in the size of the abscess to 50% of its original size and the compression on IVC was also relieved as confirmed by doppler scan. The patient was asymptomatic. Follow-up investigations showed WBC of 8,800/mm3, and liver functions tests showed a total bilirubin of 0.5 mg/dL, serum ALP of 145 IU/L, AST 40 IU/L, ALT 45 IU/L. Patient was followed up for three months and repeat ultrasound done at the end of three months showed no residual abscess and IVC was normal in caliber, color fill and flow pattern.
A 6-year-old malnourished boy was referred with a history of fever of 1-month duration, pain in right upper abdomen, loose motions, and vomitings for 14 days. The prior medical history was unremarkable. The physical examination revealed tachycardia and tachypnea. There was hepatomegaly with tenderness and guarding in the upper abdomen with ascites. On chest auscultation, the air entry was diminished on left side. Blood investigations are tabulated in . The chest radiograph showed left pleural effusion. An ultrasound showed a large single abscess of 94 ml in the left lobe of liver closely abutting the intra-hepatic vena cava. An echogenic lesion of 27 mm length extended from abscess to the IVC. Ascites was also noted. Contrast-enhanced computed tomography of abdomen revealed left lobe liver abscess in segments II and III. The thrombus was visible in the middle and left hepatic veins together with a thrombus in the IVC which extended up to the right atrium [].\nTwo-dimensional-echocardiography confirmed the above findings. The patient tested positive for amebic antibody by Enzyme-linked immunosorbent assay (ELISA) test. Broad spectrum antibiotics including metronidazole had been started by the referring institute. The patient was taken up for surgical intervention on an emergency basis. Median sternotomy and vertical pericardiotomy were performed. Cardiopulmonary bypass was established with aortocaval cannulation. After cooling to 20°C, cardioplegic arrest was achieved with root cold blood cardioplegia. Total circulatory arrest was established. Right atrium was opened parallel to the atrio-ventricular groove. Piecemeal extraction of the thrombus was done [].\nThe IVC was thoroughly irrigated with normal saline. The circulation was temporarily restarted to flush any small remnant thrombus in the IVC. The right atrium was closed and circulation was restarted. Trans-esophageal echocardiography confirmed complete removal of thrombus. Cardiopulmonary bypass was weaned off after re-warming. Left pleural cavity was drained with a tube. After reversal of systemic heparinization, the abdomen was opened by a roof top incision and the falciform ligament was divided. The left triangular ligament was divided to mobilize the left lobe. The abscess was palpable in the postero-superior aspect of segment II lying just left of the divided falciform ligament. It was adhered to the diaphragm which was dissected free and then the abscess was de-roofed. About 100 ml of anchovy sauce pus was drained from the abscess cavity. Lavage was performed followed by placement of tube drain in left sub-diaphragmatic space. Pus was sent for examination which failed to reveal any trophozoites on microscopic examination and was negative for pyogenic organisms. The patient was discharged on 10th post-operative day. The patient is on regular follow-up and he is in good health at 6 months from the date of operation.