Contrast-Enhanced Ultrasound Algorithms (CEUS-LIRADS/ESCULAP) for the Noninvasive Diagnosis of Hepatocellular Carcinoma - A Prospective Multicenter DEGUM Study.

BACKGROUND: This prospective multicenter study funded by the DEGUM assesses the diagnostic accuracy of standardized contrast-enhanced ultrasound (CEUS) for the noninvasive diagnosis of hepatocellular carcinoma (HCC) in high-risk patients. METHODS: Patients at high risk for HCC with a histologically proven focal liver lesion on B-mode ultrasound were recruited prospectively in a multicenter approach. Clinical and imaging data were entered via online entry forms. The diagnostic accuracies for the noninvasive diagnosis of HCC were compared for the conventional interpretation of standardized CEUS at the time of the examination (= CEUS on-site) and the two CEUS algorithms ESCULAP (Erlanger Synopsis for Contrast-enhanced Ultrasound for Liver lesion Assessment in Patients at risk) and CEUS LI-RADS (Contrast-Enhanced UltraSound Liver Imaging Reporting and Data System). RESULTS: 321 patients were recruited in 43 centers; 299 (93.1 %) had liver cirrhosis. The diagnosis according to histology was HCC in 256 cases, and intrahepatic cholangiocarcinoma (iCCA) in 23 cases. In the subgroup of cirrhotic patients (n = 299), the highest sensitivity for the diagnosis of HCC was achieved with the CEUS algorithm ESCULAP (94.2 %) and CEUS on-site (90.9 %). The lowest sensitivity was reached with the CEUS LI-RADS algorithm (64 %; p < 0.001). However, the specificity of CEUS LI-RADS (78.9 %) was superior to that of ESCULAP (50.9 %) and CEUS on-site (64.9 %; p < 0.001). At the same time, the negative predictive value (NPV) of CEUS LI-RADS was significantly inferior to that of ESCULAP (34.1 % vs. 67.4 %; p < 0.001) and CEUS on-site (62.7 %; p < 0.001). The positive predictive values of all modalities were high (around 90 %), with the best results seen for CEUS LI-RADS and CEUS on-site. CONCLUSION: This is the first multicenter, prospective comparison of standardized CEUS and the recently developed CEUS-based algorithms in histologically proven liver lesions in cirrhotic patients. Our results reaffirm the excellent diagnostic accuracy of CEUS for the noninvasive diagnosis of HCC in high-risk patients. However, on-site diagnosis by an experienced examiner achieves an almost equal diagnostic accuracy compared to CEUS-based diagnostic algorithms.

Granulocyte/monocyte adsorptive apheresis for the treatment of therapy-refractory chronic active ulcerative colitis.

OBJECTIVES: Current options for patients with steroid-dependent, chronic-active ulcerative colitis (UC) with insufficient response/intolerance to immunosuppressants (ISs) and/or biologics are limited. The aim of this study was to assess the long-term outcome of granulocyte/monocyte adsorptive (GMA) apheresis (Adacolumn®) in this population. MATERIALS AND METHODS: Ninety five adults with steroid-dependent active UC and insufficient response/intolerance to IS and/or TNF inhibitors received 5-8 aphereses in a single induction series of ≤10 weeks. Endpoints included rates of remission (clinical activity index [CAI] ≤ 4) at weeks 24 and 48. RESULTS: Of 94 patients (ITT population), remission and response rates were 34.0% and 44.7% at week 24, and 33.0% and 39.4% at week 48. Among 30 patients with prior failure of IS and biologics, 33.3% and 20.0% were in remission at weeks 24 and 48. At both weeks, 19.2% of patients achieved steroid-free remission. Sustained remission or response occurred in 27.7% of patients at 48 weeks. The cumulative colectomy rate at week 96 was 23.4%. Safety was consistent with previous findings. CONCLUSIONS: This study confirms findings of the 12-week interim analysis and demonstrates that GMA apheresis provides a safe and beneficial long-term outcome for patients with chronic active UC resistant/intolerant to IS and/or TNF inhibitors.

Quantitative measurement of melanoma spread in sentinel lymph nodes and survival.

BACKGROUND: Sentinel lymph node spread is a crucial factor in melanoma outcome. We aimed to define the impact of minimal cancer spread and of increasing numbers of disseminated cancer cells on melanoma-specific survival. METHODS AND FINDINGS: We analyzed 1,834 sentinel nodes from 1,027 patients with ultrasound node-negative melanoma who underwent sentinel node biopsy between February 8, 2000, and June 19, 2008, by histopathology including immunohistochemistry and quantitative immunocytology. For immunocytology we recorded the number of disseminated cancer cells (DCCs) per million lymph node cells (DCC density [DCCD]) after disaggregation and immunostaining for the melanocytic marker gp100. None of the control lymph nodes from non-melanoma patients (n = 52) harbored gp100-positive cells. We analyzed gp100-positive cells from melanoma patients by comparative genomic hybridization and found, in 45 of 46 patients tested, gp100-positive cells displaying genomic alterations. At a median follow-up of 49 mo (range 3-123 mo), 138 patients (13.4%) had died from melanoma. Increased DCCD was associated with increased risk for death due to melanoma (univariable analysis; p<0.001; hazard ratio 1.81, 95% CI 1.61-2.01, for a 10-fold increase in DCCD + 1). Even patients with a positive DCCD ≤3 had an increased risk of dying from melanoma compared to patients with DCCD = 0 (p = 0.04; hazard ratio 1.63, 95% CI 1.02-2.58). Upon multivariable testing DCCD was a stronger predictor of death than histopathology. The final model included thickness, DCCD, and ulceration (all p<0.001) as the most relevant prognostic factors, was internally validated by bootstrapping, and provided superior survival prediction compared to the current American Joint Committee on Cancer staging categories. CONCLUSIONS: Cancer cell dissemination to the sentinel node is a quantitative risk factor for melanoma death. A model based on the combined quantitative effects of DCCD, tumor thickness, and ulceration predicted outcome best, particularly at longer follow-up. If these results are validated in an independent study, establishing quantitative immunocytology in histopathological laboratories may be useful clinically.

High prevalence of psoriatic arthritis in dermatological patients with psoriasis: a cross-sectional study.

The exact prevalence of psoriatic arthritis (PsA) among patients with psoriasis is still not conclusive. Data in the literature vary between 5.8 and 30 %. Objective of this study was to gain more information on the prevalence of PsA among patients with psoriasis in Germany. Between 09/2010 and 05/2011, consecutive patients from dermatological private practices and a university hospital with psoriasis were asked to fill out the validated German Psoriatic Arthritis Diagnostic (GEPARD) Questionnaire. Patients who answered ≥4 questions with "yes" were invited to come for a rheumatological check up. Those patients who refused a rheumatological examination were counted as "absence of PsA". Laboratory tests for inflammatory markers as well as the severity of skin manifestations were assessed. The diagnosis of PsA was made according to the CASPAR criteria, and imaging was performed in addition. A total of 404 questionnaires were evaluated; 50.5 % answered ≥4 questions positively; 19.3 % had a history of PsA confirmed by a rheumatologist; and in 10.9 %, PsA or spondyloarthritis was newly diagnosed during the present study. This leads to an overall prevalence of PsA in patients with psoriasis of 30.2 %. The frequency of psoriatic arthritis in the present study is higher than expected from previous studies in Germany. The prevalence is consistent with findings of a large observational survey from Scandinavia. Using the CASPAR criteria and imaging in all patients, certainty of the diagnosis is very high. The GEPARD Questionnaire is a helpful tool to identify people at risk for psoriatic arthritis.

Magnetic resonance imaging findings in patients with systemic scleroderma and musculoskeletal symptoms.

OBJECTIVE: To explore the role of whole-body magnetic resonance imaging (MRI) in detecting musculoskeletal involvement in patients with systemic scleroderma and musculoskeletal symptoms. METHODS: Eighteen consecutive patients (8 men, 10 women) with systemic scleroderma (median age 46 years) presenting with musculoskeletal complaints underwent whole-body MRI at 1.5 T. Images were evaluated for abnormal signal intensity and/or thickening of subcutaneous fatty tissue septa, muscular fasciae, intramuscular perifascial septa, muscle signal intensity and articular or tendon sheath synovial abnormalities on STIR and post-gadolinium scans. Additionally, C-reactive protein, creatinine kinase and the modified Rodnan skin score were determined. RESULTS: MRI indicated evidence of fasciitis, articular synovial inflammation, and subcutaneous thickening in 16 (89 %) patients. MRI findings were compatible with myopathy or myositis in 14 (78 %) patients, tenosynovitis in 11 (61 %) patients and enthesitis in 10 (56 %) patients. Typically, these manifestations were distributed symmetrically and mostly generalised. We only found few correlations with modified Rodnan skin score, C-reactive protein and creatinine kinase. CONCLUSION: In patients with systemic scleroderma experiencing musculoskeletal symptoms, whole-body MRI is able to detect involvement of muscles, fasciae, joints and entheses more confidently compared with clinical and laboratory parameters.

Response evaluation of musculoskeletal involvement in patients with deep morphea treated with methotrexate and prednisolone: a combined MRI and clinical approach.

OBJECTIVE: The purpose of this article is to explore the role of MRI in monitoring musculoskeletal involvement in patients with morphea who are undergoing treatment with methotrexate and prednisolone. SUBJECTS AND METHODS: Twenty-two consecutive patients (six men and 16 women; median age, 52 years) with systemic scleroderma and deep morphea prospectively underwent whole-body MRI twice, before treatment (time 1) and during follow-up after 6-12 months (time 2). Images were evaluated for abnormal signal intensity or thickening of sub-cutaneous fatty tissue septa, muscular fasciae, intramuscular perifascial septa, muscle signal intensity, and articular or tendon sheath synovial abnormalities on STIR and gadolinium-enhanced scans. For clinical assessment, the localized scleroderma (morphea) severity index and a 0-6 pain score were applied. RESULTS: From a clinical point of view, none of our patients had progression of the disease, 12 patients were responders (defined as an improvement of localized scleroderma severity index and pain score ≥ 50%), and 10 patients had stable disease. Among responders, the number of patients with subcutaneous septal thickening (time 1, n = 9; time 2, n = 2), fascial enhancement (time 1, n = 8; time 2, n = 3), and articular synovitis (time 1, n = 5; time 2, n = 1) decreased more than in the stable disease group (subcutaneous septal thickening: time 1, n = 9; time 2, n = 8; fascial enhancement: time 1, n = 5; time 2, n = 5; articular synovitis: time 1, n = 8; time 2, n = 6). Subcutaneous thickening, fascial thickening, and fascial enhancement were scored significantly lower at follow-up MRI in responders. CONCLUSION: MRI findings were sensitive to changes in musculoskeletal manifestations in patients with deep morphea undergoing systemic treatment with methotrexate and prednisolone. Thus, MRI can be recommended as an additional tool for response monitoring.

Appendicitis/diverticulitis: diagnostics and conservative treatment.

Appendicitis and diverticulitis are very common entities that show some similarities in diagnosis and course of disease. Both are widely believed to be simple clinical diagnoses, which is in contrast to scientific evidence. An accurate diagnosis has to describe not only the initial detection, but particularly the severity of the disease. It is based mainly on cross-sectional imaging by ultrasound (US) and computed tomography (CT). Appendectomy is the standard treatment for acute appendicitis and is mandatory in complicated cases. Antibiotic therapy is similarly effective in uncomplicated appendicitis, but long-term results are not sufficiently known. Treatment of diverticulitis is related to the disease status. Complications such as perforation and bleeding require intervention. Uncomplicated diverticulitis as graded by US or CT are subject to conservative management, in the form of outpatient or hospital care. It is an unresolved debate as to whether antibiotic treatment offers benefits. Mesalazine seems at least to improve pain. The real challenge is treatment of recurrent diverticulitis. Lifestyle measures such as nutritional habits and physical activity are found to influence diverticular disease. Besides immunosuppression, obesity is a significant risk factor for complicated diverticulitis. Whether any medication such as chronic antibiotics, probiotics or mesalazine offers benefits is unclear. The indication for sigmoid resection has changed; it is no longer given by the number of attacks, but rather by structural changes as depicted by cross-sectional imaging.

Localized scleroderma: MR findings and clinical features.

PURPOSE: To describe musculoskeletal manifestations seen at magnetic resonance (MR) imaging in patients with localized scleroderma (LS) and to examine the relationship of MR findings to clinical subtypes and clinically suspected musculoskeletal features. MATERIALS AND METHODS: Institutional review board approval was obtained. Forty-three patients (30 female, 13 male; mean age, 42 years) with LS underwent MR imaging with a 1.5-T MR imager between November 2005 and June 2010. Findings were classified into clinical subtypes according to recently published consensus criteria. Images were evaluated for morphologic changes and signal abnormalities of subcutaneous fat septa, muscle fasciae, intramuscular septa, joint and/or tendon sheath synovia, entheses, and bone marrow. Clinically suspicious features of musculoskeletal manifestations-such as articular or periarticular pain, joint contractures, swelling, and increased warmth of the joints or extremities-were recorded. RESULTS: Musculoskeletal involvement was detected with MR imaging in 32 (74%) of 43 patients. It was detected with MR imaging in 26 (96%) of 27 patients in whom it was clinically suspected and in six (38%) of 16 patients in whom it was not clinically suspected. We found fascial thickening (26 [60%] of 43 patients), increased fascial enhancement (23 [53%] of 43 patients), articular synovitis (17 [40%] of 43 patients), tenosynovitis (nine [21%] of 43 patients), perifascial enhancement (seven [16%] of 43 patients), myositis (six [14%] of 43 patients), enthesitis (three [7%] of 43 patients), bone marrow involvement (two [5%] of 43 patients), and subcutaneous septal thickening (28 [65%] of 43 patients). The highest prevalence of musculoskeletal involvement was seen in patients with pansclerotic morphea. CONCLUSION: MR imaging reveals musculoskeletal involvement in patients with localized scleroderma.

Iloprost in dermatology.

Rheologically active pharmacotherapy is of high importance in many dermato-logical diseases. The intravenous administration of iloprost belongs to the most effective systemic therapeutic agents that serve this pharmacodynamic approach and additionally substantial knowledge on the safety and efficacy exists. We review the dermatologically relevant data in order to offer an easy, thematically focused overview to practicing dermatologists.

Topical treatment of erectile dysfunction with prostaglandin E1 ethyl ester.

BACKGROUND: Prostaglandin E1 ethyl ester (PGE1-EE) is a prodrug of prostaglandin E1 but with much improved transdermal penetration. PATIENTS AND METHODS: We performed a randomized, double-blind, controlled study in 34 patients to assess the safety and efficacy of transdermally applied PGE1-EE for the treatment of erectile dysfunction. In a first single-blinded titration period the most appropriate PGE1-EE dose (maximum 1000 µg) was determined. PGE1-EE was applied to the shaft of the penis using an adhesive foil patch which contained the drug. For home use, the patients were provided with 4 patches with the appropriate dose and 2 patches with placebo containing a small dose of 5 µg PGE1-EE to use randomly prior to sexual intercourse, waiting three days between each use. RESULTS: The median rigidity score as the primary outcome variable was significantly higher after verum versus placebo applications. Also, concerning the secondary outcome variable satisfactory sexual activity, superiority was shown for verum versus placebo. Although penetrating intercourse could not be performed significantly more frequently, 50 % of patients considered the treatment successful. It was well-tolerated and local side effects were generally mild. CONCLUSIONS: PGE1-EE could be a promising drug formulation in local penile therapy of ED. In further studies higher doses should be investigated in order to potentially achieve a higher level of efficacy.

Large International Validation of ABSIS and PDAI Pemphigus Severity Scores.

The Pemphigus Disease Area Index (PDAI) and Autoimmune Bullous Skin Disorder Intensity-Score (ABSIS) scores have been proposed to provide an objective measure of pemphigus activity. These scores have been evaluated only on already treated patients mainly with mild to moderate activity. The objective was to assess the interrater reliability of ABSIS and PDAI scores and their correlation with other severity markers in a large international study. Consecutive patients with newly diagnosed pemphigus were enrolled in 31 centers. Severity scores were recorded during a 24-month period by the same two blinded investigators. Serum was collected at each visit for ELISA measurement of anti-desmoglein antibodies. The intraclass correlation coefficient (ICC) and Spearman rank correlation coefficient were calculated. A total of 116 patients with pemphigus vulgaris (n = 84) or pemphigus foliaceus (n = 32) were included. At baseline, the ABSIS and PDAI ICCs were 0.90 (95% confidence interval [CI] = 0.85-0.93), and 0.91(95% CI = 0.87-0.94), respectively. The ICCs for PDAI were higher in moderate and extensive pemphigus (ICC = 0.82, 95% CI = 0.63-0.92 and ICC = 0.80, 95% CI = 0.62-0.90, respectively) than in patients with intermediate (significant) extent (ICC = 0.50, 95% CI = 0.27-0.68). Conversely, the ICCs for ABSIS were lower in patients with moderate extent (ICC = 0.44, 95% CI = 0.004-0.74) than in those with intermediate or extensive forms, (ICC = 0.69, 95% CI = 0.51-0.81 and ICC = 0.75, 95% CI = 0.51-0.88, respectively). During patients' follow-up, the ICCs of both ABSIS and PDAI scores remained higher than 0.70. ABSIS and PDAI skin (r = 0.71 and r = 0.75) but not mucosal (r = 0.32 and r = 0.37) subscores were correlated with the evolution of anti-DSG1 and anti-DSG3 ELISA values, respectively. ABSIS and PDAI scores are robust tools to accurately assess pemphigus activity.

Recommendations for the use of immunoapheresis in the treatment of autoimmune bullous diseases.

Despite the use of high-dose systemic corticosteroids in combination with other immunosuppressants, in some patients with autoimmune bullous diseases only insufficient improvement is achieved. In these cases and in acute severe disease, adjuvant immunoapheresis has been increasingly used. A consensus meeting was held in mid-2005 in Hamburg, aiming at developing guidelines for the use of immunoapheresis in the treatment of autoimmune bullous diseases. This paper summarizes the experts' recommendations.

Detection of melanoma cells displaying multiple genomic changes in histopathologically negative sentinel lymph nodes.

PURPOSE: Improved detection of early-disseminated melanoma cells may eventually translate into more effective patient care. We present a novel strategy for detection of melanoma cells in sentinel lymph nodes and confirm their malignant descent by genomic characterization. EXPERIMENTAL DESIGN: In sentinel lymph nodes from 358 melanoma patients, we prospectively compared the rates of tumor cell detection between immunocytochemistry using HMB45 and Melan A antibodies on disaggregated lymph node samples and standard histopathology (H&E staining and immunostaining on tissue sections). Immunocytochemical melanoma cell detection was controlled by testing lymph node samples from 59 nonmelanoma patients and by isolation and comparative genomic analysis of 30 antigen-positive cells. RESULTS: Of the 358 patients, 43 (12%) were positive by standard histopathology, whereas HMB45 immunocytochemistry detected 159 of 358 (44%) positive patients. None of the control samples reacted with the HMB45 antibody. Reexamination of samples that were classified as negative by histopathology revealed that extensive serial sectioning would be necessary to achieve sensitivity similar to HMB45 immunocytochemistry. Interestingly, both the number of immunocytochemically positive samples and the number of positive cells in the sentinel node correlated with the thickness of the primary tumor (r = 0.34; P = 0.001 and P < 0.0001, respectively). Twenty-four of 30 isolated immunocytochemically positive cells (80%) displayed chromosomal aberrations, some of which were isolated from histopathologically negative nodes. CONCLUSION: Immunocytochemical detection of melanoma cells in sentinel lymph nodes is superior to standard histopathology. It remains to be determined whether the detection and genomic characterization of isolated melanoma cells in sentinel lymph nodes will provide relevant prognostic information.