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Okino K, Wakasugi S, Ichihara S. Hyperechogenicity and histopathological features of focal liver lesions. J Med Ultrason (2001) 2024:10.1007/s10396-024-01475-3. [PMID: 38958787 DOI: 10.1007/s10396-024-01475-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 05/23/2024] [Indexed: 07/04/2024]
Abstract
The identification and accurate diagnosis of focal liver lesions are important in modern medicine, where diagnostic radiology plays an essential role. This review aimed to examine the hyperechogenicity and histopathological features of focal liver lesions. Hyperechogenic liver lesions can be either benign or malignant. Evidence shows that hyperechogenicity is caused by factors such as fat deposition, sinusoidal dilation, peliotic changes, and pseudoglandular patterns. Fat deposition is a common cause of increased echogenicity in hepatocellular carcinoma (HCC). Meanwhile, sinusoidal dilation and peliotic changes are more frequently observed in larger HCC nodules. Pseudoglandular patterns, characterized by the reflection of ultrasound waves at the walls of numerous acini, are associated with hyperechogenicity in well-to-moderately differentiated HCCs. Moreover, this review comprehensively examined the histological features that may cause hyperechogenic internal echoes in not only HCCs but also localized liver lesions (metastases of adenocarcinoma and neuroendocrine neoplasm, intrahepatic cholangiocarcinoma, cavernous hemangioma, focal nodular hyperplasia, and angiomyolipoma). To make an accurate diagnosis and provide appropriate management, it is important to understand the histopathological basis for hyperechogenicity in focal liver lesions. By maximizing the accuracy of imaging studies and enhancing the radiology-pathology correlation, unnecessary biopsies can be avoided, thereby reducing potential complications and mortality. This review can help facilitate the effective management of patients with focal liver lesions, thereby resulting in timely and appropriate treatment decision-making.
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Affiliation(s)
- Kumiko Okino
- Department of Clinical Laboratory Medicine, School of Medical Technology, Health Sciences University of Hokkaido, Sapporo, Japan
| | - Satoshi Wakasugi
- Department of Internal Medicine, Kanto Central Hospital of the Mutual Aid Association of Public School Teachers, Tokyo, Japan
| | - Shin Ichihara
- Department of Surgical Pathology, Sapporo Kosei General Hospital, Sapporo, Japan.
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Blichárová A, Benetinová Z, Mátyás T, Labaj P, Verbóová Ľ, Tancoš V, Nedoroščík A. Peliosis of the spleen as an unusual cause of splenic rupture: A case report and a review of literature. J Forensic Leg Med 2024; 103:102659. [PMID: 38431990 DOI: 10.1016/j.jflm.2024.102659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 02/01/2024] [Accepted: 02/18/2024] [Indexed: 03/05/2024]
Abstract
Isolated splenic peliosis is an extremely rare condition characterized by the presence of multiple blood-filled cavities, occasionally resulting in non-traumatic splenic rupture with fatal bleeding. In our case, a 64-year-old man was brought by ambulance due to weakness and abdominal pain without nausea or febrility. On clinical examination, the patient was sensitive to palpation with significant tenderness over the abdomen but no associated features of peritonitis. He collapsed during the imaging examination and became unconscious and asystolic. Cardiopulmonary resuscitation was not successful. The patient died approximately within 2 hours of admission to the hospital. Postmortal examination showed 2800 ml of intraperitoneal blood with clots and a laceration of the lower pole of the spleen. Macroscopic examination of the spleen revealed huge nodular splenomegaly, measuring 21 cm x 19 cm x 5 cm, weighing 755 g. On the cut surfaces, multiple randomly distributed blood-filled cavities ranging from 0,5 to 2 cm in diameter were seen. At microscopic examination, the specimens showed multiple irregular haemorrhagic cyst-like lesions that were not lined by any epithelium or sinusoidal endothelium, consistent with the diagnosis of peliosis lienis. Although the condition is often clinically silent, the forensic pathological significance arises from the differential diagnosis of resultant intraperitoneal haemorrhage and sudden death, mimicking a violent death.
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Affiliation(s)
- Alžbeta Blichárová
- Department of Pathology, Faculty of Medicine, Pavol Jozef Šafárik University and Louis Pasteur University Hospital in Košice, Rastislavova 43, 040 01, Košice, Slovakia.
| | - Zuzana Benetinová
- Department of Pathology, Faculty of Medicine, Pavol Jozef Šafárik University and Louis Pasteur University Hospital in Košice, Rastislavova 43, 040 01, Košice, Slovakia.
| | - Tibor Mátyás
- Forensic Medicine and Pathological Anatomy Workplace in Košice of Health Care Surveillance Authority, Ipeľská 1, 043 74, Košice, Slovakia.
| | - Peter Labaj
- Forensic Medicine and Pathological Anatomy Workplace in Košice of Health Care Surveillance Authority, Ipeľská 1, 043 74, Košice, Slovakia.
| | - Ľudmila Verbóová
- Department of Pathology, Faculty of Medicine, Pavol Jozef Šafárik University and Louis Pasteur University Hospital in Košice, Rastislavova 43, 040 01, Košice, Slovakia.
| | - Vladimír Tancoš
- Department of Pathology, Faculty of Medicine, Pavol Jozef Šafárik University and Louis Pasteur University Hospital in Košice, Rastislavova 43, 040 01, Košice, Slovakia.
| | - Adam Nedoroščík
- Department of Pathology, Faculty of Medicine, Pavol Jozef Šafárik University and Louis Pasteur University Hospital in Košice, Rastislavova 43, 040 01, Košice, Slovakia.
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Wiest I, Safai Zadeh E, Görg C, Teufel A, Michels G, Dietrich CF. Value of contrast-enhanced ultrasound for vascular diseases of the liver - current indications and open questions. ZEITSCHRIFT FUR GASTROENTEROLOGIE 2023; 61:1504-1517. [PMID: 36522165 DOI: 10.1055/a-1973-5731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Contrast-enhanced ultrasonography (CEUS) is a widely available and well-tolerated technique that can expand the diagnosis of a variety of vascular liver diseases. This paper presents an overview of the current possibilities of the use of CEUS in vascular liver diseases. Particularly where Doppler sonography has technical limitations, CEUS provides additional opportunities to visualize vascular thrombosis and other obstructions restricting blood flow. When CT or MRI contrast agents cannot be used because of severe allergy or renal insufficiency, CEUS can be a valuable diagnostic alternative and has demonstrated comparable diagnostic performance in at least some vascular liver diseases, such as portal vein thrombosis. In addition, CEUS works without radiation and, therefore, might be particularly suitable for young patients and children. This may be useful, for example, in congenital disorders such as persistent umbilical vein or preduodenal portal vein. Vascular liver disease is rare and comprehensive data are still lacking, but the available literature provides promising insights into potential new ways to study vascular liver disease. Although most studies are based on small sample sizes or even case reports, the high diagnostic utility is undisputed.
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Affiliation(s)
- Isabella Wiest
- Department of Medicine II, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Ehsan Safai Zadeh
- University Hospital Giessen and Marburg, Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, Interdisciplinary Center of Ultrasound Diagnostics, Philipps University Marburg, Marburg, Germany
| | - Christian Görg
- University Hospital Giessen and Marburg, Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, Interdisciplinary Center of Ultrasound Diagnostics, Philipps University Marburg, Marburg, Germany
| | - Andreas Teufel
- Department of Medicine II, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Guido Michels
- Klinik für Akut- und Notfallmedizin, St.-Antonius-Hospital gGmbH, Eschweiler, Deutschland, Eschweiler, Germany
| | - Christoph F Dietrich
- Allgemeine Innere Medizin (DAIM) Kliniken Beau Site, Salem und Permanence, Kliniken Hirslanden Beau Site, Salem und Permanence, Bern, Switzerland
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Calistri L, Nardi C, Rastrelli V, Maraghelli D, Grazioli L, Messerini L, Colagrande S. MRI of Peliosis Hepatis: A Case Series Presentation With a 2022 Systematic Literature Update. J Magn Reson Imaging 2023; 58:1386-1405. [PMID: 36988385 DOI: 10.1002/jmri.28673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/30/2023] Open
Abstract
BACKGROUND Peliosis hepatis (PH) is a rare benign condition, characterized by hepatic sinusoidal dilatation and blood-filled cystic cavities, often found incidentally, with still challenging diagnosis by imaging due to polymorphic appearance. PURPOSE Based on a retrospective analysis of our series (12 patients) and systematic literature review (1990-2022), to organize data about PH and identify features to improve characterization. STUDY TYPE Retrospective case series and systematic review. POPULATION Twelve patients (mean age 48 years, 55% female) with pathology-proven PH and 49 patients (mean age 52 years, 67% female) identified in 33 studies from the literature (1990-2022). FIELD STRENGTH/SEQUENCE 1,5-T; T1-weighted (T1W), T2-weighted (T2W), diffusion-weighted (DW), contrast-enhanced (CE) T1W imaging. ASSESSMENT We compared our series and literature data in terms of demographic (gender/age/ethnicity), clinical characteristics (symptoms/physical examination/liver test), associated conditions (malignancies/infectious/hematologic/genetic or chronic disorders/drugs or toxic exposure) percentage. On magnetic resonance imaging lesion numbers/shape/mean maximum diameter/location/mass effect/signal intensity were compared. PH pathological type/proposed imaging diagnosis/patient follow-up were also considered. STATISTICAL TESTS Joanna Briggs Institute (JBI) Critical Appraisal Checklist for Case Reports/Series quality assessment. Intraclass correlation and Cohen's kappa coefficients for levels of inter/intrareader agreement in our experience. RESULTS Patients were mainly asymptomatic (92% vs. 70% in our study and literature) with associated conditions (83% vs. 80%). Lesions showed homogeneous T1W-hypointensity (58% vs. 65%) and T2W-hyperintensity (58% vs. 66%). Heterogeneous nonspecific (25% vs. 51%), centrifugal (34% vs. 8%), or rim-like centripetal (25% vs. 23%) patterns of enhancement were most frequent, with hypointensity on the hepatobiliary phase (HBP), without restricted diffusivity. Good inter- and intrareader agreement was observed in our experience. Concerning JBI Checklist, 19 out of 31 case reports met at least 7 out of 8 criteria, whereas 2 case series fulfilled 5 and 6 out of 10 items respectively. DATA CONCLUSION A homogeneous, not well-demarcated T1W-hypointense and T2W-hyperintense mass, with heterogeneous nonspecific or rim-like centripetal or centrifugal pattern of enhancement, and hypointensity on HBP, may be helpful for PH diagnosis. Among associated conditions, malignancies and drug exposures were the most frequent. LEVEL OF EVIDENCE 4 TECHNICAL EFFICACY: Stage 2.
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Affiliation(s)
- Linda Calistri
- Department of Experimental and Clinical Biomedical Sciences, Radiodiagnostic Unit n. 2, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - Cosimo Nardi
- Department of Experimental and Clinical Biomedical Sciences, Radiodiagnostic Unit n. 2, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - Vieri Rastrelli
- Department of Experimental and Clinical Biomedical Sciences, Radiodiagnostic Unit n. 2, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - Davide Maraghelli
- Department of Experimental and Clinical Biomedical Sciences, Radiodiagnostic Unit n. 2, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - Luigi Grazioli
- Department of Radiology, University of Brescia "Spedali Civili", Brescia, Italy
| | - Luca Messerini
- Department of Human Pathology and Oncology, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - Stefano Colagrande
- Department of Experimental and Clinical Biomedical Sciences, Radiodiagnostic Unit n. 2, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
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Spiesecke P, Pahl S, Fischer T, Lerchbaumer MH. Solitary peliosis hepatis mimics a liver metastasis on contrast-enhanced ultrasound. Radiol Case Rep 2023; 18:1968-1972. [PMID: 36970239 PMCID: PMC10034401 DOI: 10.1016/j.radcr.2023.02.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 02/21/2023] [Indexed: 03/29/2023] Open
Abstract
Peliosis hepatis remains a rare focal liver lesion with inconclusive imaging features. The unknown pathogenesis represents a wide possible range of etiologies including the breakdown of the sinusoidal borders, a potential hepatic outflow obstruction or dilatation of the central vein of a hepatic lobule. In histopathology, a blood-filled cystlike appearance with sinusoidal dilatation was reported. On ultrasound, B-mode features are not specific demonstrating a irregular, moreover hypoechogenic focal liver lesions. Postcontrast imaging features on Contrast-Enhanced-Ultrasound may mimic a malignant lesion with irregular contrast inflow and washout during late phase. Our case demonstrates a peliosis hepatis with malignant image features on contrast-enhanced ultrasound, ruled out by PET-CT and core needle biopsy with corresponding histopathological workup.
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Affiliation(s)
- Paul Spiesecke
- Department of Radiology, Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humbold, Universität zu Berlin, and Berlin Institute of Health,Charitéplatz 1, 10117 Berlin, Germany
| | - Stefan Pahl
- Department of Pathology, Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humbold, Universität zu Berlin, and Berlin Institute of Health, Charitéplatz 1, 10117 Berlin, Germany
| | - Thomas Fischer
- Department of Radiology, Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humbold, Universität zu Berlin, and Berlin Institute of Health,Charitéplatz 1, 10117 Berlin, Germany
| | - Markus Herbert Lerchbaumer
- Department of Radiology, Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humbold, Universität zu Berlin, and Berlin Institute of Health,Charitéplatz 1, 10117 Berlin, Germany
- Corresponding author.
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Cekuolis A, Schreiber-Dietrich D, Augustinienė R, Taut H, Squires J, Chaves EL, Dong Y, Dietrich CF. Incidental Findings in Pediatric Patients: How to Manage Liver Incidentaloma in Pediatric Patients. Cancers (Basel) 2023; 15:cancers15082360. [PMID: 37190288 DOI: 10.3390/cancers15082360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 05/17/2023] Open
Abstract
The World Federation for Ultrasound in Medicine and Biology (WFUMB) is addressing the issue of incidental findings (IFs) with a series of publications entitled "Incidental imaging findings-the role of ultrasound". IFs in the liver of newborns and children are rare and much less commonly encountered than in adults; as a result, they are relatively much more frequently malignant and life-threatening, even when they are of benign histology. Conventional B-mode ultrasound is the well-established first line imaging modality for the assessment of liver pathology in pediatric patients. US technological advances, resulting in image quality improvement, contrast-enhanced ultrasound (CEUS), liver elastography and quantification tools for steatosis have expanded the use of ultrasound technology in daily practice. The following overview is intended to illustrate incidentally detected liver pathology covering all pediatric ages. It aims to aid the examiner in establishing the final diagnosis. Management of incidentally detected focal liver lesions (FLL) needs to take into account the diagnostic accuracy of each imaging modality, the patient's safety issues (including ionizing radiation and nephrotoxic contrast agents), the delay in diagnosis, the psychological burden on the patient and the cost for the healthcare system. Moreover, this paper should help the pediatric clinician and ultrasound practitioner to decide which pathologies need no further investigation, which ones require interval imaging and which cases require further and immediate diagnostic procedures.
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Affiliation(s)
- Andrius Cekuolis
- Ultrasound Section, Department of Pediatric Radiology, Radiology and Nuclear Medicine Centre, Vilnius University Hospital Santaros Klinikos, 08661 Vilnius, Lithuania
| | | | - Rasa Augustinienė
- Ultrasound Section, Department of Pediatric Radiology, Radiology and Nuclear Medicine Centre, Vilnius University Hospital Santaros Klinikos, 08661 Vilnius, Lithuania
| | - Heike Taut
- Children's Hospital, Universitätsklinikum Dresden, Technische Universität Dresden, 01062 Dresden, Germany
| | - Judy Squires
- Department of Radiology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Edda L Chaves
- Radiology Department, Hospital Regional Nicolas Solano, La Chorrera 1007, Panama
| | - Yi Dong
- Department of Ultrasound, Xinhua Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Christoph F Dietrich
- Department Allgemeine Innere Medizin (DAIM), Kliniken Hirslanden Beau Site, Salem und Permancence, 3013 Bern, Switzerland
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Chen K, Fan P, Luo R, Han H, Mao F, Wang K, Dong Y, Wang WP. Intrahepatic splenosis: Contrast enhanced ultrasound and magnetic resonance imaging findings. Clin Hemorheol Microcirc 2023; 85:211-221. [PMID: 36846993 DOI: 10.3233/ch-221582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To evaluate the contrast enhanced ultrasound (CEUS) and contrast enhanced magnetic resonance imaging (CEMRI) features of intrahepatic splenosis (IHS). METHODS & MATERIALS Five patients (three males and two females, median age, 44 years; range,32-73 years) with seven IHSs were retrieved from the database of our hospital from March 2012 to October 2021. All IHSs were confirmed histologically by surgery. The CEUS and CEMRI characteristics of individual lesion were fully analyzed. RESULTS All IHS patients were asymptomatic and four out of five patients had history of splenectomy. On CEUS, all IHSs were hyperenhancement in arterial phase. 71.4% (5/7) of IHSs manifested overall filling within few seconds, the other two lesions showed centripetal filling. Subcapsular vascular hyperenhancement and feeding artery was seen in 28.6% (2/7) and 42.9% (3/7) of IHSs, respectively. During portal venous phase, IHSs presented hyperenhancement (2/7) or isoenhancement (5/7). Moreover, rim-like hypoenhanced area was uniquely observed surrounding 85.7% (6/7) of IHSs. In late phase, seven IHSs remained continuous hyper- or isoenhancement. On CEMRI, five IHSs showed mosaic hyperintense in early arterial phase, the other two lesions showed homogeneous hyperintense. In portal venous phase, all IHSs revealed continuous hyper- (71.4%, 5/7) or iso-intense (28.6%, 2/7). During late phase, one IHS (14.3%, 1/7) became hypointense, the other lesions remained hyper- or isointense. CONCLUSION Diagnosis of IHS can be based on typical CEUS and CEMRI features in patients with history of splenectomy.
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Affiliation(s)
- Kailing Chen
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Peili Fan
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Rongkui Luo
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hong Han
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Feng Mao
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Kun Wang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yi Dong
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wen-Ping Wang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
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Imaging Features of Hepatocellular Carcinoma in the Non-Cirrhotic Liver with Sonazoid-Enhanced Contrast-Enhanced Ultrasound. Diagnostics (Basel) 2022; 12:diagnostics12102272. [PMID: 36291962 PMCID: PMC9601233 DOI: 10.3390/diagnostics12102272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/16/2022] [Accepted: 09/16/2022] [Indexed: 11/27/2022] Open
Abstract
Purpose: To investigate the Sonazoid-enhanced contrast-enhanced ultrasound (CEUS) features of hepatocellular carcinoma (HCC) in a non-cirrhosis liver background, in comparison to those in liver cirrhosis. Methods: In this retrospective study, 19 patients with surgery and histopathologically proven HCC lesions in non-cirrhosis liver background were included regarding Sonazoid-enhanced CEUS characteristics. Two radiologists evaluated the CEUS features of HCC lesions according to the WFUMB (World Federation of Societies for Ultrasound in Medicine and Biology) guidelines criteria. Thirty-six patients with HCC lesions in liver cirrhosis were included as a control group. Final diagnoses were confirmed by surgery and histopathological results. Results: Liver background of the non-cirrhosis group including normal liver (n = 7), liver fibrosis (n = 11), and alcoholic liver disease (n = 1). The mean size of non-cirrhosis HCC lesions was 60.8 ± 46.8 mm (ranging from 25 to 219 mm). During the arterial phase of Sonazoid-enhanced CEUS, most HCCs in non-cirrhotic liver (94.7%, 18/19) and in cirrhotic liver (83.3%, 30/36) presented non-rim hyperenhancement. During the portal venous phase, HCC lesions in the non-cirrhosis liver group showed relatively early washout (68.4%, 13/19) (p = 0.090). Meanwhile, HCC lesions in liver cirrhosis background showed isoenhancement (55.6%, 20/36). All lesions in the non-cirrhotic liver group showed hypoenhancement in the late phase and the Kupffer phase (100%, 19/19). Five cases of HCC lesions in liver cirrhosis showed isoenhancement during the late phase and hypoenhancement during the Kupffer phase (13.9%, 5/36). The rest of the cirrhotic HCC lesions showed hypoenhancement during the late phase and the Kupffer phase (86.1%, 31/36). Additional hypoenhanced lesions were detected in three patients in the non-cirrhosis liver group and eight patients in the liver cirrhosis group (mean size: 13.0 ± 5.6 mm), which were also suspected to be HCC lesions. Conclusions: Heterogeneous hyperenhancement during the arterial phase as well as relatively early washout are characteristic features of HCC in the non-cirrhotic liver on Sonazoid-enhanced CEUS.
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