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Chau P, Yoon JS, Moses D, Pather N. A systematic review and meta-analysis of portal vein morphometry in pediatric and adult populations: Drawing the line between normal and abnormal findings. Eur J Radiol 2023; 168:111016. [PMID: 37742371 DOI: 10.1016/j.ejrad.2023.111016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 07/13/2023] [Accepted: 07/26/2023] [Indexed: 09/26/2023]
Abstract
PURPOSE The morphometry of the hepatic portal vein is of clinical importance, particularly in pre-operative assessments, surgical management, and diagnoses of liver conditions. This systematic review and meta-analysis aimed to characterize the morphometry of the normal portal vein in both pediatric and adult patients. METHODS The study, conducted using the PRISMA guidelines and registered with PROSPERO, utilized the MEDLINE, EMBASE, SCOPUS and Web of Science databases up to May 2020, and updated to May 2023. All studies reporting extractable data on diameter, length, and cross-sectional area (CSA) of the main, left, and right portal veins (PV, LPV, RPV, respectively) were included. The AQUA Tool was used to assess the quality of the included studies. Data analysis included subgroup analyses based on geographical location, sex, age, and imaging modality. RESULTS A total of 122 studies with 11,637 subjects were eligible for inclusion. Overall, the pooled mean diameter of the PV (PVD) was 10.09 mm (95% CI: 9.56-10.62). Significant differences in diameter were found between pediatric (6.60 mm; 95% CI: 5.38-7.82) and adult (10.72 mm; 95% CI: 10.25-11.19) subjects. Additionally, there was a significantly larger PVD measurement from computed tomography (CT) than other imaging modalities: CT, 13.28 mm (95% CI: 11.71-14.84); magnetic resonance imaging (MRI), 10.50 mm (95% CI: 9.35-11.66) and ultrasound (US), 9.81 mm (95% CI: 9.47-10.16). The mean diameters of the LPV and RPV were 8.27 mm (95% CI: 6.78-9.77) and 8.33 mm (95% CI: 6.70-9.95), respectively. Mean PV length in adults is 48.63 mm (95% CI: 35.63-61.64). Mean CSA of the PV was 1.09 cm2. CONCLUSIONS The study obtained aim to improve the understanding of portal vein anatomy, especially with relevance to surgical interventions of the liver in both pediatric and adult patients. Measurements from ultrasound imaging closely approximates the generated pooled PVD mean for pediatric and adult patients. CT imaging, however, significantly exceeded the established 13 mm threshold for adults. For pediatric patients, a threshold of 8 mm is proposed as a diagnostic upper limit for a normal PVD. Although not significant, the PVD decreased from the portal confluence towards its bifurcation.
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Affiliation(s)
- Patrick Chau
- Department of Anatomy, School of Biomedical Sciences, Faculty of Medicine and Health, UNSW Sydney, Sydney, Australia
| | - Ji Soo Yoon
- Department of Anatomy, School of Biomedical Sciences, Faculty of Medicine and Health, UNSW Sydney, Sydney, Australia
| | - Daniel Moses
- Department of Radiology, Prince of Wales Hospital, Sydney, Australia
| | - Nalini Pather
- Department of Anatomy, School of Biomedical Sciences, Faculty of Medicine and Health, UNSW Sydney, Sydney, Australia; Academy of Medical Education, Medical School, Faculty of Medicine, University of Queensland, Australia; Medical Education, Faculty of Medicine and Health, UNSW Sydney, Sydney, Australia.
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Cimini A, Ricci M, Gigliotti PE, Pugliese L, Chiaravalloti A, Danieli R, Schillaci O. Medical Imaging in the Diagnosis of Schistosomiasis: A Review. Pathogens 2021; 10:pathogens10081058. [PMID: 34451522 PMCID: PMC8401107 DOI: 10.3390/pathogens10081058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/14/2021] [Accepted: 08/18/2021] [Indexed: 12/15/2022] Open
Abstract
Schistosomiasis is one of the most important parasitic diseases and it is endemic in tropical and subtropical areas. Clinical and laboratory data are fundamental for the diagnosis of schistosomiasis, but diagnostic imaging techniques such as x-rays, ultrasound (US), computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography/computed tomography (PET/CT) may be helpful in the evaluation of disease severity and complications. In this context, the aim of this review is to explore the actual role of diagnostic imaging in the diagnosis of schistosomiasis, underlining advantages and drawbacks providing information about the utilization of diagnostic imaging techniques in this context. Furthermore, we aim to provide a useful guide regarding imaging features of schistosomiasis for radiology and nuclear medicine physicians of non-endemic countries: in fact, in the last years non-endemic countries have experienced important flows of migrants from endemic areas, therefore it is not uncommon to face cases of this disease in daily practice.
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Affiliation(s)
- Andrea Cimini
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
- Correspondence: ; Tel.: +39-(06)-20902467
| | - Maria Ricci
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
| | - Paola Elda Gigliotti
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
| | - Luca Pugliese
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
- Department of Radiology, San Giovanni Calibita Fatebenefratelli Hospital, Via di Ponte di Quattro Capi 39, 00186 Rome, Italy
| | - Agostino Chiaravalloti
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
- Nuclear Medicine Section, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Neuromed, Via Atinense 18, 86077 Pozzilli, Italy
| | - Roberta Danieli
- Department of Human Sciences and Promotion of the Quality of Life, University San Raffaele, Via di Val Cannuta 247, 00166 Rome, Italy;
| | - Orazio Schillaci
- Department of Biomedicine and Prevention, University Tor Vergata, Via Cracovia 50, 00133 Rome, Italy; (M.R.); (P.E.G.); (L.P.); (A.C.); (O.S.)
- Nuclear Medicine Section, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Neuromed, Via Atinense 18, 86077 Pozzilli, Italy
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Brunetti E, Heller T, Richter J, Kaminstein D, Youkee D, Giordani MT, Goblirsch S, Tamarozzi F. Application of Ultrasonography in the Diagnosis of Infectious Diseases in Resource-Limited Settings. Curr Infect Dis Rep 2016; 18:6. [PMID: 26781324 DOI: 10.1007/s11908-015-0512-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ultrasound (US) has vast potential in the field of infectious diseases, especially so in resource-limited settings. Recent technological advances have increased availability and access to ultrasound in low-resource settings, where the burden of infectious diseases is greatest. This paper collates the evidence for the utilization of ultrasound and evaluates its effectiveness in the diagnosis and management of a range of infectious diseases. This paper explores the role of ultrasound in population-based screening for specific diseases as well as highlights its benefits for individual patient management. We describe the common diagnostic signs seen on US for common and neglected parasitic, bacterial, and viral diseases. We proceed to document the emerging field of chest US which is proving to be a superior imaging modality for the diagnosis of specific pulmonary conditions. We conclude by discussing the efforts needed to formalize and rigorously evaluate the role of ultrasound in infectious diseases.
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Affiliation(s)
- Enrico Brunetti
- Department of Infectious Diseases, San Matteo Hospital Foundation, Pavia, Italy.
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.
| | - Tom Heller
- Department of Medicine, Klinikum Muenchen-Perlach, Munich, Germany
| | - Joachim Richter
- Tropical Medicine, Clinic of Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine University, Düsseldorf, Germany
| | - Daniel Kaminstein
- Department of Emergency Medicine and Hospitalist Services, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | | | | | | | - Francesca Tamarozzi
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
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Pinto-Silva RA, Queiroz LCD, Azeredo LM, Silva LCDS, Lambertucci JR. Ultrasound in schistosomiasis mansoni. Mem Inst Oswaldo Cruz 2011; 105:479-84. [PMID: 20721494 DOI: 10.1590/s0074-02762010000400021] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Accepted: 10/15/2009] [Indexed: 12/20/2022] Open
Abstract
We reviewed ultrasound features in patients with schistosomiasis mansoni. The alterations that we observed in acute and hepatosplenic schistosomiasis are described. The advantages and disadvantages of using ultrasound patterns in the evaluation of liver fibrosis are discussed. Other diseases that are important in the differential diagnosis of schistosomal liver fibrosis are presented. Ultrasound is an effective and flexible diagnostic tool in the evaluation of a variety of diseases. It presents no harmful effects to patients, allowing non-invasive studies in hospitalized patients and in other facilities.
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Affiliation(s)
- Rogério Augusto Pinto-Silva
- Serviço de Radiologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil.
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PASSOS MCF, SILVA LC, FERRARI TCA, FARIA LC. Ultrasound and CT findings in hepatic and pancreatic parenchyma in acute schistosomiasis. Br J Radiol 2009; 82:e145-7. [DOI: 10.1259/bjr/90266783] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Vennervald BJ, Kenty L, Butterworth AE, Kariuki CH, Kadzo H, Ireri E, Amaganga C, Kimani G, Mwatha J, Otedo A, Booth M, Ouma JH, Dunne DW. Detailed clinical and ultrasound examination of children and adolescents in a Schistosoma mansoni endemic area in Kenya: hepatosplenic disease in the absence of portal fibrosis. Trop Med Int Health 2004; 9:461-70. [PMID: 15078264 DOI: 10.1111/j.1365-3156.2004.01215.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hepatosplenic schistosomiasis involving organomegaly, portal fibrosis and portal hypertension has been observed in autopsy studies. Here, we have tested the hypothesis that hepatosplenic disease including organomegaly and markers of increased portal pressure can occur in school aged children in the absence of fibrosis. A case-only study of 96 children aged 7-20 years defined by ultrasound detectable hepatomegaly was undertaken in Makueni district, Kenya. A novel method of clinical examination that involved a consensus scoring by three or four examiners was used to classify children as presenting with severe or moderate hepatosplenic disease after palpation of livers and spleens. Ultrasound examination of livers and spleens was based on the Niamey protocol. Clinical measurements included spleen enlargement along the mid-clavicular and mid-axillary lines, liver enlargement along the mid-sternal (MSL) and mid-clavicular lines, as well as organ consistency. The clinical examination indicated that 9% and 60% of the children had severe or moderate hepatosplenomegaly, respectively. Amongst egg-positive children, all clinical measurements, except MSL liver enlargement, correlated with egg count, as did portal vein diameter, spleen length and liver length measured by ultrasound. Peri-portal fibrosis was not observed in any child, whereas 28% of the children were classified as having increased portal pressure according to World Health Organization criteria. There was no effect of malaria parasitaemia or hepatitis seropositvity on any of the observed parameters. These results indicate that hepatosplenic disease in school-aged children attributable to S. mansoni infection, involving hepatosplenomegaly and increased portal vein diameter, can occur in the absence of peri-portal fibrosis.
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Abstract
Ultrasonography (US) is suitable for diagnosing schistosomiasis-related organic pathology and is particularly useful to assess its evolution after therapy and/or interruption of exposure to the Schistosoma parasites. Evolution of pathology after treatment: Regression of hepatic abnormalities in Schistosma mansoni-infected children and adolescents has been observed already from 7 months post-therapy on. This does, however, not occur in all cases: individual differences are great ranging from spontaneous regression of pathology without treatment to persistence of pathology lasting for years after therapy even without re-infection. Intensity and duration of exposure, different parasite strains, patients' age and genetic background all influence the evolution of pathology. In communities at continuous exposure to S. mansoni infection, repeated re-treatment is required to control hepatosplenic morbidity. In Schistosoma japonicum infection, changes around the portal tree may regress, but characteristic diffuse abnormalities described as 'network pattern' abnormalities do not resolve. In Schistosoma haematobium infection bladder abnormalities and urinary tract obstruction frequently resolve after treatment. Clinically relevant pathology may resurge from 1 year after therapy on if exposure continues. Subjects with more advanced pathology before therapy, appear to be at higher risk of pathology re-appearance. Evolution of pathology after interruption of exposure to schistosomiasis: Knowledge on the evolution of pathology induced by S. mansoni is limited to some reports in emigrants and to the experience of ultrasonographists working in areas, where transmission has been partially interrupted. Due to the longevity of the parasite, infection may last for many years. Even after elimination of the parasites severe pathology may persist for long. In S. haematobium infection spontaneous healing after interruption of re-exposure may occur, but cases have been reported where urogenital lesions led to complications many years after exposure. Contrary to hepatosplenic and urinary pathology, knowlegde on the evolution of other organic abnormalities is very limited: studies on the evolution of biliary abnormalities or intestinal pathology have not been published. Genital pathology may be induced by all Schistosoma spp. Post-therapy evolution of genital schistosomiasis is largely ignored. In some European travellers partial regression of prostatic fibrosis has been described. Schistosomal adnexitis leading to infertility and/or ectopic pregnancy has been reported occurring many years after interruption of exposure. Ultrasonography (US) has never been used to study the influence of schistosomiasis on pregnancy. Concluding, current knowlegde on the evolution of pathology after treatment and/or interruption of exposure is still fragmentary. Frequently, fibrosis reverses after therapy, but advanced pathology may persist for long. Therefore, the possibility of severe clinical complications has to be taken into account, even if the infection is inactive since many years. In interventions aimed at controlling schistosomiasis-related morbidity, evolution of pathology must be monitored by US in representative patient cohorts. Further systematic US-studies are needed not only on the evolution of hepatosplenic and urinary pathology but also on that of intestinal, biliary and genital pathology induced by schistosomiasis, as well as on the influence of schistosomiasis on the outcome of pregnancy.
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Affiliation(s)
- J Richter
- Abteilung für Gastroenterologie, Hepatologie und Infektiologie, Tropenmedizinische Ambulanz, Heinrich-Heine Universität Duesseldorf, Duesseldorf, Germany.
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Lambertucci JR, Serufo JC, Gerspacher-Lara R, Rayes AA, Teixeira R, Nobre V, Antunes CM. Schistosoma mansoni: assessment of morbidity before and after control. Acta Trop 2000; 77:101-9. [PMID: 10996126 DOI: 10.1016/s0001-706x(00)00124-8] [Citation(s) in RCA: 112] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The literature on the assessment of morbidity due to Schistosoma mansoni infection is updated. Imaging techniques such as ultrasonography, echodoppler cardiography, computerized tomography (CT scan) and magnetic resonance imaging (MRI) introduced a new perspective, and expanded our knowledge on morbidity. Three well-defined syndromes caused by schistosomiasis mansoni have been described: the stage of invasion, acute schistosomiasis (Katayama fever), and chronic schistosomiasis. Complications of the acute and chronic syndromes have also been reported: pulmonary hypertension, neuroschistosomiasis, association with Salmonella, association with Staphylococci, viral hepatitis B, glomerulonephritis. In most individuals with hepatosplenic schistosomiasis the spleen is increased in size. Hepatosplenic schistosomiasis can, however, occur without splenomegaly. The definition of hepatosplenic schistosomiasis in endemic areas as the finding of S. mansoni eggs in the stools in an individual with hepatosplenomegaly is not satisfactory anymore. Many aspects of morbidity are expected to change after schistosomiasis control. Some are expected to change quickly (worm burden, Salmonella bacteremia, hepatosplenic schistosomiasis in children) whereas others shall remain for years (pulmonary hypertension, glomerulonephritis, neuroschistosomiasis). Intestinal schistosomiasis in individuals with low worm burdens is very difficult to diagnose and therefore laborious to control.
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Affiliation(s)
- J R Lambertucci
- Faculty of Medicine, Federal University of Minas Gerais, Department of Internal Medicine (Infectious Disease Branch), 30.130-100, MG, Belo Horizonte, Brazil.
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9
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Abstract
Reports on abdominal ultrasound studies in patients with acute schistosomiasis are still scarce and limited data are available on structural changes of the liver parenchyma in this stage of the disease. 26 patients with acute schistosomiasis mansoni were submitted to clinical and ultrasound examination. For ultrasound comparison, each acute patient was paired by age, gender, weight and height to a non-infected individual. Ultrasound showed a non-specific homogeneous size increase of the liver, and spleen in all acute patients, and easily identified intraabdominal lymph nodes in the periportal region in most cases. Three out of the five patients with periportal thickening underwent percutaneous liver biopsy. Periportal thickening disappeared 6 months after treatment for schistosomiasis. 24 months after successful treatment there was involution of the liver and spleen; lymph nodes, although reduced in size, were still easily recognized. Liver biopsy showed dense inflammatory infiltration of neutrophils, macrophages and eosinophils in the portal tracts associated with discrete fibrous tissue formation.
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Affiliation(s)
- C H Barata
- Department of Internal Medicine (Infectious Disease Branch), Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Pereira e Silva Y, Secor E, Andrade MO, Katz N, Rabello A. Circulating antigens levels in different clinical forms of the Schistosoma mansoni infection. Mem Inst Oswaldo Cruz 1999; 94:83-6. [PMID: 10029916 DOI: 10.1590/s0074-02761999000100017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
With the aim to evaluate the circulating cathodic antigen (CCA) levels in relation to the different clinical phases of Schistosoma sp. infection a sandwich ELISA using monoclonal antibody 5H11 was performed. The sera of three groups of 25 Brazilian patients with acute, intestinal and hepatosplenic forms of S. mansoni infection were tested and compared to a non-infected control group. Patients and control groups were matched for age and sex and the number of eggs per gram of feces was equally distributed among the three patient groups. Sensitivity of 100%, 72%, 52% of the assay was observed for the intestinal, hepatosplenic and acute toxemic groups respectively. The specificity was 100%. Intestinal and hepatosplenic groups presented CCA levels significantly higher in comparison to those observed for acute patients (F-ratio = 2,524; p = 0.000 and F-ratio = 6,314; p = 0.015 respectively). There was no significant difference of CCA serum levels between hepatosplenic and intestinal groups (F-ratio = 1,026; p = 0.316).
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Affiliation(s)
- Y Pereira e Silva
- Laboratório de Esquistossomose, Centro de Pesquisas René Rachou-Fiocruz, MG, Brasil
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Affiliation(s)
- P E Palmer
- Department of Radiology, University of California, Davis, USA
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Cesmeli E, Vogelaers D, Voet D, Duyck P, Peleman R, Kunnen M, Afschrift M. Ultrasound and CT changes of liver parenchyma in acute schistosomiasis. Br J Radiol 1997; 70:758-60. [PMID: 9245889 DOI: 10.1259/bjr.70.835.9245889] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Acute schistosomiasis in travellers to endemic regions often remains unrecognized. Early diagnosis is important to avoid progression to chronic disease. Diagnosis is based on clinical, epidemiological and laboratory data. The role of imaging techniques as diagnostic tools remains to be established in acute clinical schistosomiasis. We describe hypodense nodules in the liver on ultrasound and CT scanning in a patient with acute schistosomiasis (Katayama syndrome). To our knowledge this is the first description of nodular hepatic lesions in acute schistosomiasis.
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Affiliation(s)
- E Cesmeli
- Department of Infectious Diseases, University Hospital Gent, Belgium
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Abstract
Globally, schistosomes infect 1 in 30 people. Tourists travel to endemic areas, whereas students, workers, and expatriates travel to nonendemic areas. Physicians around the world need to remain aware of this common parasitic infection. Pathology results from parasite eggs that lodge in the intestines and liver. Intestinal schistosomiasis is most often asymptomatic and presents with occult gastrointestinal bleeding. Hepatosplenic schistosomiasis develops insidiously because of cumulative fibrotic injury. Stigmata of liver failure are absent unless comorbid viral or alcoholic hepatitis is present. Patients with end-stage hepatosplenic schistosomiasis die from variceal hemorrhage. Diagnosis of schistosomiasis is confirmed by finding eggs in stool or biopsy specimens. Antischistosome antibodies may identify infected tourists returning from endemic areas. Circulating schistosome antigens distinguish current from past infections. Praziquantel is the schistosomicidal drug of choice. Most cases of hepatosplenic schistosomiasis resolve after effective treatment. Prophylactic propranolol may prevent hemorrhage in praziquantel-treated patients with high-grade varices. Sclerotherapy is also efficacious. When necessary, patients with hepatosplenic schistosomiasis tolerate decompressive surgery well.
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Affiliation(s)
- D E Elliott
- Division of Gastroenterology, University of Iowa Hospitals and Clinics, Iowa City, USA
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