[A supposed hepatocellular adenoma turns out to be intrahepatic splenosis - a case report]. / Ein vermeintliches hepatozelluläres Adenom stellt sich als intrahepatische Splenose heraus ­ ein Fallbericht.

We report the case of a 62-year-old Caucasian male patient who presented with epigastric pain to our outpatient clinic. On abdominal ultrasound we detected a 26 mm oval hypoechoic lesion in segment 2 of the left liver lobe. Performing contrast-enhanced ultrasound this lesion showed an arterial hypervascularization with centripetal filling and a spoke wheel pattern. Due to a hyperenhancement during the portal and late phase this lesion led to the diagnosis of a benign liver tumor, probably a hepatocellular adenoma (HCA). As focal nodular hyperplasia (FNH) was still another possible diagnosis, we decided to perform an MRI, which could not differentiate between HCA and hepatocellular carcinoma (HCC). Therefore, we performed liver biopsy of this lesion. Histology and immunohistochemistry led to the final diagnosis of intrahepatic splenosis. Reassessment of patient history revealed an abdominal trauma with splenic rupture 5 years ago. Intrahepatic splenosis should be considered as an important differential diagnosis in patients with unknown liver tumor and a history of splenic trauma.

Large-scale integrated assessment of soil carbon and organic matter-related nitrogen fluxes in Saxony (Germany).

Changes in land-use, agricultural management and climate affect the turnover and storage of organic carbon in soils (SOC) as well as the nitrogen mobilization from soil organic matter (SOM), with potential side effects on nitrogen availability and leaching. When addressing the requests for increased carbon storage in soil as well as for the reduction of nitrogen losses, integrated approaches on regional scales are required that take into account the actual changes in agricultural management and climate. This study investigated the arable land (7345 km2) of Saxony (Germany) with regard to the following: (1) the trends of SOC storage and organic matter-related nitrogen fluxes, including their subregional and annual dynamics, (2) changes in the carbon input to arable soils and the turnover of organic matter, and (3) the contribution of different drivers (climate, crop production and fertilization, tillage system) to the simulated SOM changes for the period 1998-2014 on a 500 m grid. The model CANDY carbon balance (CCB) was specifically adapted for large-scale simulations of SOM turnover to link spatial data on soils and climate with regional statistics on agricultural management. This new 'regional mode' of CCB has been validated using data from 391 plots across different European locations. The initial SOC levels for Saxony assumed steady state conditions at the beginning of the simulation period and have been validated using data from 667 monitoring sites. The results showed an increase in the SOC stocks of the arable soils of Saxony of 785 × 103 t C (1.24‰ annually) during the simulation period. At the same time, the model simulated an average increase in organic nitrogen stored in SOM of approximately 7.5 kg N ha-1 a-1, with considerable differences between individual years and subregions. Both the increase in carbon inputs to soil (+8%) and the reduction of carbon turnover rates (-10%) had positive effects on SOC storage. While the increased use of conservation tillage was the most important driver for the overall increase in SOM storage in Saxony, climate variability and crop production and fertilization had the largest effect on its annual dynamics.

Clinical characteristics of patients with liver cirrhosis and spontaneous portosystemic shunts detected by ultrasound in a tertiary care and transplantation centre.

OBJECTIVES: The clinical relevance of spontaneous portosystemic shunts detected by ultrasound is insufficiently investigated. The aim of this retrospective study was to assess the frequency and clinical relevance of spontaneous portosystemic shunts in patients with liver cirrhosis. METHODS: We evaluated portosystemic shunts, liver cirrhosis and spleen size by ultrasound in 982 patients with liver cirrhosis and correlated these with laboratory results, clinical data and the incidence of clinical endpoint deaths, liver transplantation and the development of HCC during the follow-up period (mean 1.26 ± 1.53 years [range 0-7.2 years]). RESULTS: Portosystemic shunts were detected in 34% of the patients. These patients had a higher rate of alcohol-related cirrhosis (37% vs. 30%, p = .003), a higher MELD score (p < .001) and Child-Pugh grade (p < .001), as well as more frequent hepatic encephalopathy (p < .001) and oesophageal varices (p < .003). The most frequent portosystemic shunt in this cohort was an umbilical vein shunt (69%) followed by splenorenal (16%), mesenteric (7%) and combined/other shunts (8%). Patients with umbilical vein shunts had a higher rate of alcohol-related cirrhosis (p = .041) and suffered more frequently from Child B/C stages (p = .03), hepatorenal syndrome (p = .03), massive ascites (p = .001) and spontaneous bacterial peritonitis (p = .011). CONCLUSIONS: Patients with portosystemic shunts that are detected by ultrasound should be monitored carefully as these patients are associated with advanced liver disease and multiple clinical risk factors.

Retrograde portal vein flow and transarterial chemoembolization in patients with hepatocellular carcinoma - a case-control study.

BACKGROUND AND AIMS: Transarterial chemoembolization (TACE) is the most common treatment for hepatocellular carcinoma (HCC). In case of portal vein (PV) flow diversion, outcome may be compromised due to a decompensation of hepatic perfusion following arterial embolization. The aim of this study was to determine whether TACE in patients with retrograde PV flow results in a stronger deterioration of liver function and a poorer survival compared to patients with orthograde PV flow. METHODS: A database of 606 patients treated with TACE between 2000 and 2015 at Hannover Medical School was screened for Doppler ultrasound (US) findings on PV flow prior to TACE. A total of 407 patients were identified, among which 32 patients had retrograde PV flow. RESULTS: Patients with retrograde PV flow had significantly more often liver cirrhosis with advanced hepatic dysfunction (93.5% vs. 72.7%, p < .05). Median overall survival (OS) was 12 and 19 months in patients with retro- and orthograde PV flow, respectively (HR 1.27, p > .05). Patients with retrograde PV flow showed a trend for a shorter OS when matched for cirrhosis (12 vs. 21months, HR 1.51), Child-Pugh score/albumin-bilirubin grade (12 vs. 15 months). There was no difference in the deterioration of liver function after repeated treatments between both groups as assessed by increase of CP points and ALBI grade. CONCLUSIONS: Retrograde PV flow alone was not a significant prognostic marker, but patients with retrograde PV flow and advanced liver cirrhosis treated with TACE had a very short survival. Assessment of PV flow prior TACE may be helpful in borderline cases considered for TACE.

Testosterone-receptor positive hepatocellular carcinoma in a 29-year old bodybuilder with a history of anabolic androgenic steroid abuse: a case report.

BACKGROUND: Continuous use of anabolic androgenic steroid in high-doses is associated with substantial health risks, including hepatocellular adenoma. Malignant transformation from hepatocellular adenoma to hepatocellular carcinoma after anabolic androgenic steroid abuse has been rarely reported. The morphological distinction of adenoma from well-differentiated hepatocellular carcinoma is challenging and requires elaborated imaging techniques and histology. CASE PRESENTATION: We report about a 29-year old male professional bodybuilder who presented with mid-epigastric pain at the emergency unit. Ultrasound showed a severe hepatomegaly with multiple lesions. Contrast-enhanced ultrasound revealed a heterogeneous pattern with signs of hepatocellular carcinoma. CT scan of the abdomen confirmed multiple hypervascular lesions and central areas of necrosis without contrast enhancement. Subsequent diagnostics included fine needle aspiration (FNA) of suspicious lesions and mini-laparoscopy to establish the diagnosis of a ß-catenin and testosterone-receptor positive hepatocellular carcinoma embedded in multiple adenomas. The patient was subsequently treated by liver transplantation and remains tumor-free 27 month after surgery. CONCLUSION: Hepatocellular carcinoma occurring in association with anabolic androgenic steroid abuse should sensitize physicians and especially professional bodybuilders for the harmful use of high doses of steroids.

Ultrasound presentation of abdominal tuberculosis in a German tertiary care center.

OBJECTIVE: Abdominal tuberculosis (TB) is a relatively rare disease in most of Europe and the typical clinical and sonographic findings in this setting have not been studied. We aimed to define sonographic findings that should alert an examiner to the possibility of abdominal TB in a low endemic region. METHODS: Case records of 17 patients with proven (n = 11) or highly likely (n = 6) abdominal TB detected in the gastrointestinal ultrasound unit at a German tertiary care center in 2003-2013 were analyzed retrospectively. Findings were compared with reported series from high-prevalence regions. RESULTS: While 76% of patients had an immigrant background, only 35% had a condition associated with immunosuppression. Lymphadenopathy was present in all cases of abdominal TB, while it was absent in 28% of patients from a control group with proven abdominal sarcoidosis. Moreover, retroperitoneal lymphadenopathy was significantly more common in TB. Other findings in patients with abdominal TB in descending order of frequency were ascites, altered hepatic texture, splenomegaly, splenic lesions, peritoneal thickening, intestinal wall lesions, hepatic lesions and hepatomegaly. 76% of abdominal TB patients had 2 or more pathological findings. CONCLUSIONS: Multiple pathological intra-abdominal findings including lymphadenopathy should alert the examiner to the possibility of abdominal TB.

Complications and clinical outcome of hepatic artery embolisation in patients with hereditary haemorrhagic telangiectasia.

BACKGROUND: Hepatic artery embolisation (HAE) in patients with hereditary haemorrhagic telangiectasia (HHT) is controversial because of the associated complications and unproven long-term benefit. We present our results in 20 such patients over a time span of 17 years. METHODS: Staged HAE was performed using polyvinyl alcohol (PVA) particles and coils. Complications, clinical symptoms and cardiac output were assessed before and after therapy as well as at the end of follow-up (median 92 months, range 26-208 months). RESULTS: Two patients died within 30 days following HAE (10 %). Four further deaths resulted from causes unrelated to HAE. Ischaemic cholangitis, cholecystitis and focal hepatic necrosis with biliary sepsis necessitated re-intervention in four patients. In all but one patient, clinical symptoms resolved with mean cardiac output falling from 11.84 ± 3.22 l/min pre-treatment to 8.13 ± 2.67 l/min at the end of follow-up (P < 0.001). One patient required liver transplantation for de novo symptoms of portal hypertension 4 years after primary symptoms had been cured by HAE. CONCLUSION: The 30-day mortality of HAE in patients with HHT is 10 %. The rate of complications requiring re-intervention is 20 %. Clinical response at long-term follow-up is satisfactory.

No evidence of substantial growth progression or complications of large focal nodular hyperplasia during pregnancy.

OBJECTIVE: Focal nodular hyperplasia (FNH) is a benign liver tumor considered to develop under the influence of estrogens. Whether women with known FNH are at higher risk of growth progression and complications during pregnancy is still controversially discussed. The authors investigated the growth pattern of FNH during pregnancy and possible related complications. MATERIALS AND METHODS: Twenty pregnant women with FNH were followed by the authors' center. Before pregnancy, diagnosis of FNH was usually established by contrast-enhanced ultrasound. During pregnancy, monitoring of FNH was performed by conventional ultrasound. Furthermore, a questionnaire was sent to all patients. RESULTS: Patient's age ranged from 24 to 36 years. Mean size of FNH before pregnancy was 58.5 ± 22.7 mm. It did not vary significantly during pregnancy (fourth month of pregnancy: 58.1 ± 23.0 mm; after pregnancy: 55.5 ± 26.8 mm; -8%; n.s.). Only in three patients, growth of FNH by 18 ± 6% was observed, while FNH size remained constant in 7 patients and even declined by -11 ± 6% in 10 patients. There were no FNH-related complications. The questionnaire was sent back by 16 patients (80%). All responding patients took oral contraceptives in the past over a mean 12.4 ± 4.4 years. Previous pregnancies were reported by 38% of patients. FNH-related fears were expressed by 63% of patients, but no FNH-related complications or symptoms during pregnancy were noted. CONCLUSIONS: This study demonstrates that women with FNH are not at risk of significant growth progression or FNH-related complications. Pregnancy should not be discouraged in these patients but careful advice and guidance are necessary.

Liver transplantation: A new risk factor for intestinal intussusceptions.

BACKGROUND: Intestinal intussusception in adults is associated with chronic inflammatory bowel disease, celiac disease, abdominal tumors or previous abdominal surgery but most often of unknown origin. AIM: The aim of our study was to evaluate circumstances and identify risk factors for intussusceptions. METHODS: All 65,928 abdominal ultrasound examinations performed at our tertiary medical center between January 2001 and June 2008 were analyzed retrospectively for the diagnosis "intussusception". After identifying individuals with sonographically proven intussusception we analyzed various patients' characteristics including age, gender and underlying disease as well as sonographic findings such as localization of the intussusception, absence or presence of ascites and lymph nodes. RESULTS: We identified 32 cases of intussusceptions [mean age 45 years (range 18 to 88); 18 patients were male]. Twelve patients (38%) had a history of abdominal surgery including 8 patients who had undergone liver transplantation (2 patients with primary sclerosing cholangitis, 1 patient with cystic fibrosis, 1 patient with sarcoidosis, 1 patient with hepatocellular carcinoma and HCV infection, 1 patient with autoimmune hepatitis, 1 patient with Crigler-Najar-syndrome and one patient with echinococcus). A hepaticojejunostomy had been performed in 4 of the patients after liver transplantation. Liver transplanted patients were significantly overrepresented in the intussusceptions group compared with the overall cohort of patients undergoing abdominal ultrasound examination (25% vs. 8%, Chi-Square-test, p = 0.0023). CONCLUSION: In our retrospective study liver transplantation, in particular with hepaticojejunostomy, was identified as a new major risk factor for intestinal intussusceptions

Education tracking and adolescent smoking: a counterfactual and prospective cohort study.

BACKGROUND AND AIMS: Adolescent smoking is a health issue and a potential health inequality issue. Education tracking, which is the placement of students into different school types and curricula based on their learning needs or abilities, is an indicator of inequality and risk factor of adolescent smoking. We examined the effect of educational tracking, dividing students into vocational and academic high school tracks, on adolescent smoking in Taiwan. DESIGN AND SETTING: Longitudinal panel data, collected annually from 2000 over a period of 6 years as part of the Taiwan Youth project, were used. PARTICIPANTS: Adolescents (aged 13-18 years) from the first six waves of the Taiwan Youth Project were included in the project, of whom 2147 had clear information on track attendance in 10th grade, control variables in 7th/8th grades and smoking behavior in 8th grade (before track placement). Post-track smoking behavior was measured at 10th, 11th and 12th grades. MEASUREMENTS: The outcome variable was the self-reported smoking status in the 8th grade and between 10th and 12th grades. The treatment variable of interest was education tracking (vocational versus academic), which was conducted when the student was in 10th grade. Several important confounders were used for the difference-in-differences propensity score matching (e.g. parents' education and same classroom peer smoking). FINDINGS: Placement of a student in the vocational track increased the proportion of smokers by 3.3 percentage points in 10th grade (P = 0.039). The effect was even more pronounced in 11th grade (6.2 percentage points; P = 0.000) and 12th grade (5.9 percentage points; P = 0.003). CONCLUSIONS: Education tracking (placement of students into different school curricula based on learning needs or abilities) appears to be a risk factor for adolescent smoking among Taiwanese adolescents.

Membranous Budd-Chiari syndrome in Caucasians.

OBJECTIVE: Budd-Chiari syndrome (BCS) is characterized by an obstruction of hepatic venous outflow. Membranous obstruction of the inferior vena cava (IVC) is a curable cause of primary BCS but is very rare in Western Europe. To date, there is only very limited information on membranous BCS in the Western world. We here report the diagnosis and management of five Caucasian patients with membranous BCS. MATERIAL AND METHODS: Out of 23 patients with BCS diagnosed between 2004 and 2007 we identified five with a membranous web of the IVC. Diagnostic evaluation of BCS included laboratory tests, ultrasound Doppler imaging, CT and MRI. RESULTS: The clinical presentation of membranous BCS was heterogeneous. The time frame from first clinical symptoms to diagnosis ranged from 3 weeks to 60 years. Liver cirrhosis was misdiagnosed in 4/5 patients. CT did not establish the correct diagnosis of membranous BCS in any of our patients. In contrast, abdominal Doppler ultrasonography showed collaterals and a web in the IVC which was confirmed by Doppler-MRI and hepatovenography. Four patients underwent interventional treatment with balloon dilatation of short-segment venous stenoses or complete occlusions. Therapy was successful: in all cases it resulted in a normalized extrahepatic blood flow and reduction of spleen size. CONCLUSIONS: Membranous BCS may be underdiagnosed in Caucasians. Doppler ultrasound should be used as the initial diagnostic procedure for membranous BCS. Although CT is considered the "gold standard" in addition to angiography, it could not detect membranous obliteration in our cases. Patients can be effectively treated by interventional endovascular therapy.

Evaluation of sound speed for detection of liver fibrosis: prospective comparison with transient dynamic elastography and histology.

OBJECTIVE: The degree of liver fibrosis determines the prognosis and treatment of patients with chronic viral hepatitis. Transient elastography (TE) has been accepted as a noninvasive method for assessment of liver fibrosis. Sound velocity (SV) changes are also dependent on elastic properties of tissue. The aim of this pilot study was to evaluate whether SV estimation of liver tissue allows the determination of fibrosis stages in patients with chronic viral hepatitis. METHODS: Prospectively, 50 healthy volunteers and 149 patients received stiffness (TE, 50-Hz vibrator, 5-MHz array) and SV (conventional ultrasound, C5-2-MHz transducer) measurements. Eighty-four patients received representative liver biopsies. The estimated SV and stiffness were compared using liver biopsy as a reference (METAVIR fibrosis stage [F] scoring system [Hepatology 1996; 24:289-293]). Descriptive statistics, analysis of variance, receiver operating characteristic curve analysis, and box plot analysis as well as intra-operator and interoperator reproducibility analyses were performed. RESULTS: The SV ranged from 1540 to 1650 m/s. The mean SV ± SD was significantly different between healthy volunteers (1559 ± 11 m/s) and patients with F0-F3 (1575 ± 21 mm/s) and F4 (1594 ± 18 m/s) disease (P < .001). For detection of liver cirrhosis, the area under the receiver operating characteristic curve for SV was 0.80 (95% confidence interval, 0.69-0.89). With a cutoff value of 1589 m/s, the sensitivity, specificity, and positive and negative predictive values of SV for detection of liver cirrhosis were 82%, 76%, 70%, and 86%, respectively. Sound velocity measurements were reproducible (15%) and had acceptable operator independence (19%). CONCLUSIONS: The SV of liver tissue depends on the fibrosis stage. An SV of 1589 m/s or higher detects cirrhosis with high sensitivity. Therefore, SV measurement appears to be a promising new method for noninvasive quantification of liver fibrosis.

Procedure-related pulmonary hypertension in patients with hepatocellular carcinoma undergoing percutaneous ethanol injection--role of ethanol, hemolysis, asymmetric dimethylarginine, and the nitric oxide system.

OBJECTIVE: Local percutaneous tumor ablation with ethanol injection (PEI) under general anesthesia is an established therapy for patients with nonresectable hepatocellular carcinoma (HCC). There are reports of sudden hypotension immediately after PEI therapy, which was attributed to an acute increase in pulmonary vascular resistance. The aim of our study was to objectively confirm pulmonary hypertension by right heart catheterization and to evaluate biochemical markers with relevance to the pulmonary circulation. DESIGN: Cross-sectional clinical study. SETTING: Interventional Gastroenterology in a tertiary care center. PATIENTS: We studied 40 patients with HCC who underwent percutaneous ethanol injection under general anesthesia for the treatment of nonresectable HCC. RESULTS: In patients with HCC, PEI leads to a significant increase in pulmonary arterial pressure. Concomitantly, free hemoglobin and blood ethanol level significantly increased, whereas the l-arginine/asymmetric dimethylarginine ratio, a parameter of nitric oxide (NO) production capacity, and nitrite, a marker of NO synthesis, significantly decreased. CONCLUSION: Procedure-related pulmonary hypertension in patients undergoing PEI is multifactorial. Plasma concentrations of the NO precursor l-arginine are reduced by arginase released from lysed erythrocytes, a condition further exacerbated by the increased concentrations of symmetric dimethylarginine, which may compete with the cellular uptake of l-arginine. The result would be reduced synthesis of NO, the concentration of which would be further decreased extracellularly through free hemoglobin. Predictably, the result would be severe endothelial dysfunction and pulmonary hypertension in patients undergoing PEI. These mechanisms might also be relevant in other states of (sudden) hemolysis.

Different kinetics of liver stiffness using shear wave elastography in patients with chronic hepatitis C infection treated with interferon-free regimens.

BACKGROUND: Direct-acting antivirals (DAAs) lead to a high rate of sustained virologic response (SVR) in chronic hepatitis C infection. The aim was to evaluate liver stiffness kinetics, using acoustic radiation force impulse (ARFI) imaging elastography, during and after DAAs in patients who had reached SVR. PATIENTS AND METHODS: A total of 275 consecutive chronic hepatitis C virus-infected patients were included in this longitudinal prospective single-centre study. All patients received DAAs for 8 to 24 weeks, and liver stiffness measurements (LSMs) by ARFI at baseline, at week 4, week 12, week 24, and 24 weeks (SVR24) and 48 weeks (FU48) after the end of treatment were recorded. Transient elastography was performed at baseline and at SVR24. RESULTS: A decrease in LSM was detected at SVR24 by ARFI and transient elastography (P<0.001 and <0.001, respectively). A continuous gradual decrease in ARFI was observed in patients with cirrhosis versus a nonsignificant change in patients without cirrhosis until FU48 (P<0.001 vs. 0.877, respectively). At SVR24, higher baseline ARFI values (P=0.038) were associated with a decrease in LSM in patients with cirrhosis versus normal international normalization ratio (P=0.003), lower bilirubin (P=0.003), and higher albumin (P=0.007) in patients without cirrhosis. The incidence of liver stiffness decrease from baseline was higher in patients with cirrhosis than in those without cirrhosis (P<0.001), whereas the incidence of liver stiffness progression was more pronounced in advanced than in compensated cirrhosis (P<0.001). CONCLUSION: After DAAs in patients with SVR, liver stiffness improves in patients with cirrhosis, whereas non-cirrhotic patients show no true change in liver stiffness. Liver stiffness worsens in patients with advanced liver disease.

Shear wave elastography prior to transjugular intrahepatic portosystemic shunt may predict the decrease in hepatic vein pressure gradient.

BACKGROUND: Transjugular intrahepatic portosystemic shunt (TIPS) is a procedure used to treat portal hypertension complications. Our aim was to evaluate liver and spleen stiffness measurement (LSM and SSM, respectively) changes using acoustic radiation force impulse imaging (ARFI) in comparison to Child-Pugh scores for predicting hepatic venous pressure gradient (HVPG) decreases after TIPS implantation. METHODS: This prospective study included 31 consecutive clinically significant portal hypertension patients with TIPS indication. All patients received LSM and SSM before TIPS, at baseline, 2 days (follow-up 1) and 6 weeks (follow-up 2) post-implantation. HVPG was performed during the TIPS procedure. RESULTS: The mean decrease in HVPG after TIPS was 63%. LSM and SSM decreased significantly between baseline and follow-up 2 (p < 0.001 and p < 0.001, respectively). At baseline, follow-up 1 and follow-up 2, significant correlations were detected between mean SSM and mean HVPG (p = 0.026; p = 0.018; p = 0.002, respectively). HVPG decreased to ≤ 10 mmHg in 61% of patients for which LSM, SSM, and Child-Pugh score were predictors (p = 0.033, p = 0.002 and p = 0.030, respectively). The area under the curve (AUC) for LSM, SSM, and Child-Pugh was 0.88, 0.90, and 0.84, respectively, with close sensitivity and specificity. SSM had the highest diagnostic accuracy for predicting an HVPG decrease to ≤ 10 mmHg in comparison to LSM and Child-Pugh score. CONCLUSION: Spleen stiffness is superior to liver stiffness and Child-Pugh score as a non-invasive surveillance tool for evaluating patients with clinically significant portal hypertension (HVPG ≥ 10 mmHg) prior to TIPS.

Perihilar lymph nodes in patients with primary sclerosing cholangitis with and without cholangiocellular carcinoma.

OBJECTIVE: Enlarged perihilar lymph nodes have been described in patients with primary sclerosing cholangitis (PSC). The aim of the study was to determine the clinical relevance of perihilar lymph nodes in PSC patients with and without cholangiocellular carcinoma (CCC). MATERIAL AND METHODS: The status of perihilar lymph nodes was investigated in 117 patients with PSC using "high-end" ultrasound. Thirty-five of the 117 PSC patients had histologically proven CCC. Lymph node status was correlated with the presence of CCC and inflammatory bowel disease (IBD). RESULTS: Seventy-three percent of PSC patients without CCC and 86% of patients with CCC had enlarged perihilar lymph nodes (NS). In CCC patients, the width of lymph nodes was significantly larger (12+/-6 mm versus 8+/-4 mm; p=0.0001), and the length:width ratio (2.15+/-0.7:1 versus 2.5+/-0.6:1; p=0.004) of the lymph nodes was significantly lower. Thirty-seven percent of PSC patients without CCC and 57% of patients with PSC and CCC had multiple perihilar lymph nodes (p=0.04). In all patients, the presence versus absence of IBD had no influence on the number (84% versus 74%,) and size of perihilar lymph nodes (length: 21+/-10 mm versus 19+/-7 mm). Lymph node status did not correlate with the number of episodes of cholangitis. CONCLUSIONS: Enlarged perihilar lymph nodes are characteristic of patients with PSC. Since perihilar lymph nodes are not predictive of the presence of complicating CCC, such patients should not be excluded from liver transplantation.

Interobserver agreement in diagnosing liver involvement in hereditary hemorrhagic telangiectasia by Doppler ultrasound.

The purpose was to evaluate interobserver agreement on Doppler ultrasonographic (US) diagnosis of liver vascular malformations (VMs) in hereditary hemorrhagic teleangiectasia (HHT) and on their severity grading. During the interobserver agreement study, three observers with at least seven years of specific experience using Doppler US for the diagnosis of liver VMs, judged about the presence/absence of liver VMs and their severity on a set of images and videoclips. Interobserver agreement was estimated with kappa statistics. One-hundred ten cases were reviewed during interobserver study (80 cases with liver VMs, 30 without). Very good kappa values of the interobserver agreement were found for all pairs concerning the distinction between presence and absence of hepatic VMs. All observers demonstrated excellent sensitivity and specificity in identifying hepatic VMs, with their respective areas under the curve ranging from 0.97 to 0.99. Interobserver agreement among the three investigators in staging the hepatic VMs in HHT patients was moderate (Kendall's coefficient of concordance = 0.26). Study results indicate that Doppler US diagnosis of liver VMs in HHT has a high degree of agreement among ultrasonographers; a moderate agreement was found regarding severity staging.

Ethanol sclerotherapy or polidocanol sclerotherapy for symptomatic hepatic cysts.

BACKGROUND: Over the past decades, multiple approaches to aspiration sclerotherapy of large symptomatic hepatic cysts have been investigated. However, comparative data are scarce. OBJECTIVE: The objective of this article is to compare cyst reduction, symptomatic relief, and adverse events between ethanol sclerotherapy and polidocanol sclerotherapy. METHODS: This retrospective study included adults having a symptomatic hepatic cyst treated at a European tertiary referral center with ethanol sclerotherapy (Center 1) or polidocanol-sclerotherapy (Center 2). We compared cyst diameter reduction (%) and symptom improvement (yes/no) within 12 months' post-treatment between centers using multivariate regression analyses adjusted for confounding factors. Finally, we compared adverse events using Fisher's exact test. RESULTS: We included 71 patients from Center 1 and 66 patients from Center 2 (median age 57 years; 126/137 (92%) female). Cyst reduction was comparable between Centers 1 and 2: 37.5% (IQR 15.7-61.0%) versus 44.2% (IQR 24.6-60.5%), respectively (p = 0.35). Correspondingly, symptomatic relief was comparable: 30/53 (56.6%) versus 43/66 (65.2%), respectively (p = 0.88). Center 1 reported significantly more (11 versus 3; p = 0.047) adverse events than Center 2. CONCLUSION: We found comparable cyst reduction and symptomatic relief rates between ethanol- and polidocanol sclerotherapy, while adverse events occurred more often in the ethanol group. Prospective studies focused on clinical response are needed to further explore differences between approaches.

Long-term changes in liver elasticity in hepatitis C virus-infected patients with sustained virologic response after treatment with direct-acting antivirals.

BACKGROUND: The use of interferon-free direct-acting antiviral agents (DAAs) is associated with a rapid short-term decrease in liver stiffness in chronic hepatitis C-infected patients with sustained virologic response (SVR). OBJECTIVE: The objective of this article is to evaluate long-term changes in liver elasticity in hepatitis C patients with SVR using transient elastography (TE), FIB-4 and APRI. METHODS: A total of 143 patients were treated with DAAs and reached SVR. Patients received TE measurement (median (range)) at treatment start (baseline), follow-up week 24 (FU24) and follow-up week 96 (FU96). Laboratory data were examined at each date and FIB-4 and APRI were calculated. RESULTS: Liver elasticity showed a significant decrease from baseline to FU24 (13.1 (3.1-75) kPa to 9.3 (2.9-69.1) kPa; p < 0.0001) and declined further until FU96 (7.9 (2.4-59.3) kPa; p < 0.0001). Liver inflammation and liver function parameters normalised during long-term follow-up. Progression of liver stiffness between FU24 to FU96 despite viral clearance was observed in 24 patients (17%). Long-term liver stiffness progression was associated with aspartate aminotransferase levels and TE change from baseline to FU24. CONCLUSION: During long-term follow-up, the majority of patients with SVR had further improved liver stiffness values. Still, a significant proportion of patients may show long-term liver stiffness progression and thus continued TE follow-up is recommended.

Combination of repeated single-session percutaneous ethanol injection and transarterial chemoembolisation compared to repeated single-session percutaneous ethanol injection in patients with non-resectable hepatocellular carcinoma.

AIM: To evaluate the treatment effect of percutaneous ethanol injection (PEI) for patients with advanced, non-resectable HCC compared with combination of transarterial chemoembolisation (TACE) and repeated single-session PEI, repeated single-session PEI alone, repeated TACE alone, or best supportive care. METHODS: All patients who received PEI treatment during the study period were included and stratified to one of the following treatment modalities according to physical status and tumor extent: combination of TACE and repeated single-session PEI, repeated single-session PEI alone, repeated TACE alone, or best supportive care. Prognostic value of clinical parameters including Okuda-classification, presence of portal vein thrombosis, presence of ascites, number of tumors, maximum tumor diameter, and serum cholinesterase (CHE), as well as Child-Pugh stage, alpha-fetoprotein (AFP), fever, incidence of complications were assessed and compared between the groups. Survival was determined using Kaplan-Meier and multivariate regression analyses. RESULTS: The 1- and 3-year survival of all patients was 73% and 47%. In the subgroup analyses, the combination of TACE and PEI (1) was associated with a longer survival (1-, 3-, 5-year survival: 90%, 52%, and 43%) compared to PEI treatment alone (2) (1-, 3-, 5-year survival: 65%, 50%, and 37%). Secondary PEI after initial stratification to TACE (3) yielded comparable results (1-, 3-, 5-year survival: 91%, 40%, and 30%) while PEI after stratification to best supportive care (4) was associated with decreased survival (1-, 3-, 5-year survival: 50%, 23%, 12%). Apart from the chosen treatment modalities, predictors for better survival were tumor number (n < 5), tumor size (< 5 cm), no ascites before PEI, and stable serum cholinesterase after PEI (P < 0.05). The mortality within 2 wk after PEI was 2.8% (n = 3). There were 24 (8.9%) major complications after PEI including segmental liver infarction, focal liver necrosis, and liver abscess. All complications could be managed non-surgically. CONCLUSION: Repeated single-session PEI is effective in patients with advanced HCC at an acceptable and manageable complication rate. Patients stratified to a combination of TACE and PEI can expect longer survival than those stratified to repeated PEI alone. Furthermore, patients with large or multiple tumors in good clinical status may also profit from a combination of TACE and reconsideration for secondary PEI.