1
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Bitar R, Kaur M, Crandall I, McNamara R, Revzin MV. Ultrasound evaluation of portal venous gas and its mimics. Abdom Radiol (NY) 2024; 49:2756-2769. [PMID: 38735019 DOI: 10.1007/s00261-024-04328-2] [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: 01/31/2024] [Revised: 03/31/2024] [Accepted: 04/02/2024] [Indexed: 05/13/2024]
Abstract
Portal venous gas on abdominal ultrasound classically represents an indirect indicator of bowel ischemia, a critical condition which poses a high patient mortality and therefore warrants emergent corrective action. While the classic appearance of portal venous gas on ultrasound is well-described in the literature, the characteristic descriptors are nonspecific and may actually represent other less emergent mimics. Therefore, while radiologists should remain vigilant for the detection of findings corresponding to portal venous gas, they should also be aware of similar-appearing entities in order to provide the most accurate diagnosis. This pictorial essay will open with imaging examples of true portal venous gas attributable to bowel ischemia and describe the classic features which should alert radiologists to this specific diagnosis. Subsequently, this pictorial essay will provide imaging examples of other various other clinical entities which on ultrasound may share similar imaging characteristics. An important objective of this pictorial essay is to highlight distinguishing imaging features along with specific clinical circumstances for each pathological entity which can direct radiologists into identifying the correct diagnosis.
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Affiliation(s)
- Ryan Bitar
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, USA
| | - Manroop Kaur
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, USA
| | - Ian Crandall
- Department of Cardiovascular Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Robert McNamara
- Department of Cardiovascular Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Margarita V Revzin
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, USA.
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2
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Unal C, Saglam S. Metastatic neuroendocrine carcinoma: Liver metastases presenting with diffuse nodular calcifications on CT. J Cancer Res Ther 2024; 20:464-466. [PMID: 38554365 DOI: 10.4103/jcrt.jcrt_497_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/30/2022] [Indexed: 04/01/2024]
Abstract
We report a case of the 46-year-old female patient, who presented with diffuse nodular liver calcifications on computed tomography. Histopathology of the calcified nodules revealed neuroendocrine tumors (NETs). Calcified NET liver metastases are extremely rare and need to be considered in the differential diagnosis with other benign and malignant liver calcification.
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Affiliation(s)
- Caglar Unal
- Department of Medical Oncology, Demiroglu Bilim University, İstanbul, Turkey
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3
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Maino C, Vernuccio F, Cannella R, Cortese F, Franco PN, Gaetani C, Giannini V, Inchingolo R, Ippolito D, Defeudis A, Pilato G, Tore D, Faletti R, Gatti M. Liver metastases: The role of magnetic resonance imaging. World J Gastroenterol 2023; 29:5180-5197. [PMID: 37901445 PMCID: PMC10600959 DOI: 10.3748/wjg.v29.i36.5180] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/28/2023] [Accepted: 09/11/2023] [Indexed: 09/20/2023] Open
Abstract
The liver is one of the organs most commonly involved in metastatic disease, especially due to its unique vascularization. It's well known that liver metastases represent the most common hepatic malignant tumors. From a practical point of view, it's of utmost importance to evaluate the presence of liver metastases when staging oncologic patients, to select the best treatment possible, and finally to predict the overall prognosis. In the past few years, imaging techniques have gained a central role in identifying liver metastases, thanks to ultrasonography, contrast-enhanced computed tomography (CT), and magnetic resonance imaging (MRI). All these techniques, especially CT and MRI, can be considered the non-invasive reference standard techniques for the assessment of liver involvement by metastases. On the other hand, the liver can be affected by different focal lesions, sometimes benign, and sometimes malignant. On these bases, radiologists should face the differential diagnosis between benign and secondary lesions to correctly allocate patients to the best management. Considering the above-mentioned principles, it's extremely important to underline and refresh the broad spectrum of liver metastases features that can occur in everyday clinical practice. This review aims to summarize the most common imaging features of liver metastases, with a special focus on typical and atypical appearance, by using MRI.
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Affiliation(s)
- Cesare Maino
- Department of Radiology, Fondazione IRCCS San Gerardo dei Tintori, Monza 20900, Italy
| | - Federica Vernuccio
- University Hospital of Padova, Institute of Radiology, Padova 35128, Italy
| | - Roberto Cannella
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), University of Palermo, Palermo 90127, Italy
| | - Francesco Cortese
- Unit of Interventional Radiology, F Miulli Hospital, Acquaviva delle Fonti 70021, Italy
| | - Paolo Niccolò Franco
- Department of Radiology, Fondazione IRCCS San Gerardo dei Tintori, Monza 20900, Italy
| | - Clara Gaetani
- Department of Surgical Sciences, University of Turin, Turin 10126, Italy
| | - Valentina Giannini
- Department of Surgical Sciences, University of Turin, Turin 10126, Italy
| | - Riccardo Inchingolo
- Unit of Interventional Radiology, F Miulli Hospital, Acquaviva delle Fonti 70021, Italy
| | - Davide Ippolito
- Department of Radiology, Fondazione IRCCS San Gerardo dei Tintori, Monza 20900, Italy
- School of Medicine, University of Milano Bicocca, Milano 20100, Italy
| | - Arianna Defeudis
- Department of Surgical Sciences, University of Turin, Turin 10126, Italy
| | - Giulia Pilato
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), University of Palermo, Palermo 90127, Italy
| | - Davide Tore
- Department of Surgical Sciences, University of Turin, Turin 10126, Italy
| | - Riccardo Faletti
- Department of Surgical Sciences, University of Turin, Turin 10126, Italy
| | - Marco Gatti
- Department of Surgical Sciences, University of Turin, Turin 10126, Italy
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4
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Buiar PG, Favero GM, Peruzzo N. A CALCIFIED LIVER MASS. Am J Med 2023:S0002-9343(23)00297-8. [PMID: 37148989 DOI: 10.1016/j.amjmed.2023.04.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 04/18/2023] [Indexed: 05/08/2023]
Affiliation(s)
- Pedro G Buiar
- Instituto Sul Paranaense de Oncologia, Medical Oncology Department, Ponta Grossa, Brazil.
| | - Giovani M Favero
- State University of Ponta Grossa, Biological and Health Science Multidisciplinary Laboratory, Ponta Grossa, Brazil
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5
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Ghahremani GG, Hahn ME, Fishman EK. Computed tomography of hyper-attenuated liver: Pictorial essay. Clin Imaging 2023; 97:1-6. [PMID: 36857928 DOI: 10.1016/j.clinimag.2023.02.012] [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: 09/26/2022] [Revised: 02/07/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023]
Abstract
Demonstration of a very dense or hyper-attenuated liver on the pre-contrast CT images of the abdomen can be an unexpected finding. It may present as a diagnostic challenge if the underlying cause of it is not apparent from the provided clinical history. There are about 12 different pathologic conditions that are associated with deposition of radiopaque elements within the hepatic parenchyma, resulting in diffuse or multi-lobar hyperdense appearance of the liver on abdominal radiographs and CT. Most of them are drug-induced or iatrogenic in nature, while others are the sequelae of genetic disorders like thalassemia, Wilson's disease, and primary hemochromatosis. This pictorial essay will present the CT appearance and etiology of hyper-attenuated liver in various clinical entities.
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Affiliation(s)
- Gary G Ghahremani
- Department of Radiology, University of California-San Diego Medical Center, 200 West Arbor Drive, San Diego, CA 92103, USA.
| | - Michael E Hahn
- Department of Radiology, University of California-San Diego Medical Center, 200 West Arbor Drive, San Diego, CA 92103, USA
| | - Elliot K Fishman
- Department of Radiology, Johns Hopkins University Hospital, 733 North Broadway, Baltimore, MD 21205, USA
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6
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Jevalikar G, Ravindra S, Reddy PK, S L SR, Sarathi V. Pediatric Ectopic Cushing Syndrome Caused by Hepatic Neoplasms: A Case Report and Systematic Review. Cureus 2023; 15:e36852. [PMID: 37123777 PMCID: PMC10143147 DOI: 10.7759/cureus.36852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2023] [Indexed: 03/31/2023] Open
Abstract
Ectopic adrenocorticotropic hormone (ACTH) syndrome (EAS) is rare in children, and localizing the source of EAS is often challenging. Here, we report EAS in an adolescent boy who presented with Cushingoid features and had endogenous ACTH-dependent hypercortisolism on hormonal evaluation. Abdominal ultrasound and CT revealed a hepatic lesion with characteristics suggestive of hemangioma, whereas the lesion was tracer non-avid on 68Ga-DOTANOC positron emission tomography/CT. A regional sampling of ACTH was done to confirm the hepatic lesion as the source of EAS, and a definitive ACTH gradient was observed between the hepatic vein and the right internal jugular vein. Further, a preoperative biopsy of the lesion revealed a small round cell tumor with positive immunostaining for ACTH and synaptophysin, suggestive of a neuroendocrine tumor. The patient was managed with partial hepatectomy, resulting in hormonal and clinical remission of Cushing syndrome. In a systematic review of pediatric EAS due to primary hepatic tumors (n = 11), calcifying nested stromal epithelial cell tumors were the most common. EAS-associated hepatic tumors were larger (≥10 cm) except benign primary hepatic neuroendocrine tumors (PHNET). The latter were misdiagnosed as hemangioma in two cases by anatomical imaging but correctly diagnosed by somatostatin receptor scintigraphy. Hepatic tumors causing EAS in children required extensive resection, except benign PHNET. Nevertheless, all benign tumors with an uncomplicated perioperative course demonstrated disease-free survival over a median follow-up period of two years.
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Kumar V, Shah M, Gala D, Singh MK, Jeanty H, Thomas R, Forlemu AN, Gayam VR, Etienne D. Hepatic Dystrophic Calcification Secondary to Transarterial Chemoembolization: Case Report and Review of Literature. Cureus 2023; 15:e35765. [PMID: 37020485 PMCID: PMC10070055 DOI: 10.7759/cureus.35765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2023] [Indexed: 03/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a common malignancy usually treated with surgery. Patients who are not suitable for surgery undergo transarterial chemoembolization (TACE) which involves injecting anti-cancer drugs and embolizing agents into the hepatic artery. Although it is a relatively safe procedure with minor side effects, TACE can rarely cause dystrophic calcification in the liver. We report a case of a 58-year-old female who presented with right-sided chest pain. The patient had been previously treated for HCC with a TACE procedure. A chest x-ray revealed hepatic calcification which was likely secondary to the prior TACE. This case study emphasizes the significance of considering TACE as a potential cause of hepatic dystrophic calcification.
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8
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Ozaki K, Higuchi S, Kimura H, Gabata T. Liver Metastases: Correlation between Imaging Features and Pathomolecular Environments. Radiographics 2022; 42:1994-2013. [PMID: 36149824 DOI: 10.1148/rg.220056] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A wide range of imaging manifestations of liver metastases can be encountered, as various primary cancers preferably metastasize to the liver (organ-specific metastases), with the imaging characteristics largely depending on various primary tumor-specific factors such as histopathologic category, degree of tumor differentiation, histologic behavior, and intratumor alterations. Characteristic imaging features potentially can help provide a more precise diagnosis in some clinical settings. These settings include those of (a) primary cancers of hollow organs such as gastrointestinal organs, the lungs, and the bladder, owing to the appearance of metastases that cannot be applied to the liver, which is a parenchymal organ; (b) unknown primary tumors; (c) more than one primary tumor; (d) another emergent malignancy; and (e) transformation to a different histopathologic tumor subtype. The characteristic features include the target sign on T2-weighted MR images or during the hepatobiliary phase of hypovascular metastasis, the peripheral rim washout sign on delayed phase images, peritumor hyperintensity during the hepatobiliary phase, hypervascular metastasis, a cystic appearance with marked hyperintensity on T2-weighted images, marked hyperintensity on T1-weighted images, calcification, capsular retraction, absence of the vessel-penetrating sign, distribution of liver metastases, and rare intraductal forms of metastases. In addition to various factors associated with the primary cancer, desmoplastic reactions around the tumor-which can be observed in adenocarcinomas with peripheral and peritumor enhancement, distinct arterioportal shunts with metastases from pancreatic ductal carcinoma, and pseudocirrhosis-also can affect these findings. The authors review the characteristic imaging findings of liver metastases from various primary cancers, with a focus on the mechanisms that underlie organ-specific liver metastases. Online supplemental material is available for this article. ©RSNA, 2022.
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Affiliation(s)
- Kumi Ozaki
- From the Departments of Radiology (K.O., H.K.) and Pathology (S.H.), Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji, Fukui 910-1193, Japan; and Department of Radiology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan (T.G.)
| | - Shohei Higuchi
- From the Departments of Radiology (K.O., H.K.) and Pathology (S.H.), Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji, Fukui 910-1193, Japan; and Department of Radiology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan (T.G.)
| | - Hirohiko Kimura
- From the Departments of Radiology (K.O., H.K.) and Pathology (S.H.), Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji, Fukui 910-1193, Japan; and Department of Radiology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan (T.G.)
| | - Toshifumi Gabata
- From the Departments of Radiology (K.O., H.K.) and Pathology (S.H.), Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji, Fukui 910-1193, Japan; and Department of Radiology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan (T.G.)
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9
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Revisiting Epithelial Carcinogenesis. Int J Mol Sci 2022; 23:ijms23137437. [PMID: 35806442 PMCID: PMC9267463 DOI: 10.3390/ijms23137437] [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: 05/10/2022] [Revised: 06/22/2022] [Accepted: 06/22/2022] [Indexed: 12/04/2022] Open
Abstract
The origin of cancer remains one of the most important enigmas in modern biology. This paper presents a hypothesis for the origin of carcinomas in which cellular aging and inflammation enable the recovery of cellular plasticity, which may ultimately result in cancer. The hypothesis describes carcinogenesis as the result of the dedifferentiation undergone by epithelial cells in hyperplasia due to replicative senescence towards a mesenchymal cell state with potentially cancerous behavior. In support of this hypothesis, the molecular, cellular, and histopathological evidence was critically reviewed and reinterpreted when necessary to postulate a plausible generic series of mechanisms for the origin and progression of carcinomas. In addition, the implications of this theoretical framework for the current strategies of cancer treatment are discussed considering recent evidence of the molecular events underlying the epigenetic switches involved in the resistance of breast carcinomas. The hypothesis also proposes an epigenetic landscape for their progression and a potential mechanism for restraining the degree of dedifferentiation and malignant behavior. In addition, the manuscript revisits the gradual degeneration of the nonalcoholic fatty liver disease to propose an integrative generalized mechanistic explanation for the involution and carcinogenesis of tissues associated with aging. The presented hypothesis might serve to understand and structure new findings into a more encompassing view of the genesis of degenerative diseases and may inspire novel approaches for their study and therapy.
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10
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Panuganti S, Varala S, Damarla SV, Prasad J. A rare case of disseminated cutaneous histoplasmosis. Indian J Dermatol Venereol Leprol 2022; 88:533-536. [PMID: 35593285 DOI: 10.25259/ijdvl_1184_2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/01/2022] [Indexed: 01/19/2023]
Affiliation(s)
- Sowmya Panuganti
- Department of Dermatology, Osmania Medical College, Hyderabad, Telangana, India
| | - Sirisha Varala
- Department of Dermatology, Osmania Medical College, Hyderabad, Telangana, India
| | - Sudha Vani Damarla
- Department of Dermatology, Osmania Medical College, Hyderabad, Telangana, India
| | - Jvds Prasad
- Department of Dermatology, Osmania Medical College, Hyderabad, Telangana, India
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Hayashi K, Kitamura M, Tomura H, Yamaguchi K, Kawazu T, Sawase K, Harada T, Ichikawa T, Takazono T, Funakoshi S, Mukae H, Nishino T. Hemodialysis Patient with Diffuse Liver Calcification After Septic Shock. AMERICAN JOURNAL OF CASE REPORTS 2021; 22:e933386. [PMID: 34707080 PMCID: PMC8557856 DOI: 10.12659/ajcr.933386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/30/2021] [Accepted: 09/21/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND Calcification in arteries is sometimes observed in patients undergoing hemodialysis; however, ectopic calcification in other organs is uncommon. In particular, diffuse liver calcification is very rare. We report a case of rapidly developing diffuse liver calcification in a patient undergoing hemodialysis. CASE REPORT An 82-year-old woman started hemodialysis because of diabetic nephropathy, and her renal function worsened due to acute coronary syndrome. Percutaneous coronary intervention was conducted, and she was referred to our hospital. However, she subsequently contracted various infections, including a urinary tract infection and pneumonia. On day 43 of hospitalization, she developed septic shock and liver dysfunction due to catheter-induced infection. Although she did not have any medical history of liver disease, hypoperfusion of the liver resulted in liver dysfunction, and a computed tomography scan conducted 3 months later showed diffuse calcification in her liver. Despite recovering from septic shock, she ultimately died of multiple organ failure 21 months after admission to our hospital. CONCLUSIONS Diffuse liver calcification is extremely rare; however, it can be observed in patients undergoing hemodialysis who experience liver hypoperfusion. The precise mechanisms underlying this disorder remain unknown, but a critically ill status and specific characteristics of hemodialysis patients may play important roles in liver calcification.
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Affiliation(s)
- Kanako Hayashi
- Department of Nephrology, Nagasaki Renal Center, Nagasaki, Japan
- Department of Nephrology, Nagasaki University School of Medicine Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mineaki Kitamura
- Department of Nephrology, Nagasaki Renal Center, Nagasaki, Japan
- Department of Nephrology, Nagasaki University School of Medicine Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hideshi Tomura
- Department of Nephrology, Nagasaki Renal Center, Nagasaki, Japan
- Department of Nephrology, Nagasaki University School of Medicine Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kosei Yamaguchi
- Department of Nephrology, Nagasaki Renal Center, Nagasaki, Japan
- Department of Nephrology, Nagasaki University School of Medicine Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tayo Kawazu
- Department of Nephrology, Nagasaki Renal Center, Nagasaki, Japan
| | - Kenji Sawase
- Department of Urology, Nagasaki Renal Center, Nagasaki, Japan
| | - Takashi Harada
- Department of Nephrology, Nagasaki Renal Center, Nagasaki, Japan
| | - Tatsuki Ichikawa
- Department of Gastroenterology, Nagasaki Harbor Medical Center, Nagasaki, Japan
| | - Takahiro Takazono
- Department of Respiratory Medicine, Nagasaki University School of Medicine Graduate School of Biomedical Sciences, Nagasaki, Japan
| | | | - Hiroshi Mukae
- Department of Respiratory Medicine, Nagasaki University School of Medicine Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tomoya Nishino
- Department of Nephrology, Nagasaki University School of Medicine Graduate School of Biomedical Sciences, Nagasaki, Japan
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Agnello F, Rabiolo L, Midiri F, Lo Re G, Grassedonio E, La Grutta L, Buscemi S, Agrusa A, Galia M. Focal hepatic intrinsically hyperattenuating lesions at unenhanced CT: Not always calcifications. Clin Imaging 2021; 80:304-314. [PMID: 34482241 DOI: 10.1016/j.clinimag.2021.08.020] [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: 05/20/2021] [Revised: 07/26/2021] [Accepted: 08/13/2021] [Indexed: 11/27/2022]
Abstract
Due to the growing use of CT, there has been an increase in the frequency of detecting focal liver lesions. Intrinsically hyperattenuating hepatic lesions or pseudolesions are not uncommon at unenhanced CT. Hyperattenuating hepatic lesions can be divided into non-calcified and calcified. Causes of intrinsic hyperattenuation include hemorrhage, thrombosis, and calcifications. Focal liver lesions can show hyperattenuation on unenhanced CT in case of severe liver steatosis. Recognition of etiologies associated with hyperattenuation on unenhanced CT can help the radiologist in characterizing focal liver lesions and pseudolesions. In this paper, we describe the spectrum of intrinsically hyperattenuating focal liver lesions and pseudolesions at unenhanced CT.
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Affiliation(s)
- Francesco Agnello
- Section of Radiological Sciences, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Lidia Rabiolo
- Section of Radiological Sciences, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Federico Midiri
- Section of Radiological Sciences, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Giuseppe Lo Re
- Section of Radiological Sciences, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Emanuele Grassedonio
- Section of Radiological Sciences, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Ludovico La Grutta
- Section of Radiological Sciences, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Salvatore Buscemi
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Antonino Agrusa
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Massimo Galia
- Section of Radiological Sciences, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy.
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13
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Mamone G, Di Piazza A, Gentile G, Milazzo M, Carollo V, Crinò F, Marrone G, Caruso S, Sparacia G, Maruzzelli L, Miraglia R. Imaging of calcified hepatic lesions: spectrum of diseases. Abdom Radiol (NY) 2021; 46:2540-2555. [PMID: 33452900 DOI: 10.1007/s00261-020-02924-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/13/2020] [Accepted: 12/19/2020] [Indexed: 01/23/2023]
Abstract
Hepatic calcifications have been increasingly identified over the past decade due to the widespread use of high-resolution Computed Tomography (CT) imaging. Calcifications can be seen in a vast spectrum of common and uncommon diseases, from benign to malignant, including cystic lesions, solid neoplastic masses, and inflammatory focal lesions. The purpose of this paper is to present an updated review of CT imaging findings of a wide range of calcified hepatic focal lesions, which can help radiologists to narrow the differential diagnosis.
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Affiliation(s)
- Giuseppe Mamone
- Radiology Unit, Department of Diagnostic and Therapeutic Services, IRCCS ISMETT (Mediterranean Institute for Transplantation and Advanced Specialized Therapies), via Tricomi 5, 90127, Palermo, Italy.
| | - Ambra Di Piazza
- Radiology Unit, Department of Diagnostic and Therapeutic Services, IRCCS ISMETT (Mediterranean Institute for Transplantation and Advanced Specialized Therapies), via Tricomi 5, 90127, Palermo, Italy
| | - Giovanni Gentile
- Radiology Unit, Department of Diagnostic and Therapeutic Services, IRCCS ISMETT (Mediterranean Institute for Transplantation and Advanced Specialized Therapies), via Tricomi 5, 90127, Palermo, Italy
| | - Mariapina Milazzo
- Radiology Unit, Department of Diagnostic and Therapeutic Services, IRCCS ISMETT (Mediterranean Institute for Transplantation and Advanced Specialized Therapies), via Tricomi 5, 90127, Palermo, Italy
| | - Vincenzo Carollo
- Radiology Unit, Department of Diagnostic and Therapeutic Services, IRCCS ISMETT (Mediterranean Institute for Transplantation and Advanced Specialized Therapies), via Tricomi 5, 90127, Palermo, Italy
| | - Francesca Crinò
- Radiology Unit, Department of Diagnostic and Therapeutic Services, IRCCS ISMETT (Mediterranean Institute for Transplantation and Advanced Specialized Therapies), via Tricomi 5, 90127, Palermo, Italy
| | - Gianluca Marrone
- Radiology Unit, Department of Diagnostic and Therapeutic Services, IRCCS ISMETT (Mediterranean Institute for Transplantation and Advanced Specialized Therapies), via Tricomi 5, 90127, Palermo, Italy
| | - Settimo Caruso
- Radiology Unit, Department of Diagnostic and Therapeutic Services, IRCCS ISMETT (Mediterranean Institute for Transplantation and Advanced Specialized Therapies), via Tricomi 5, 90127, Palermo, Italy
| | - Gianvincenzo Sparacia
- Radiology Unit, Department of Diagnostic and Therapeutic Services, IRCCS ISMETT (Mediterranean Institute for Transplantation and Advanced Specialized Therapies), via Tricomi 5, 90127, Palermo, Italy
| | - Luigi Maruzzelli
- Radiology Unit, Department of Diagnostic and Therapeutic Services, IRCCS ISMETT (Mediterranean Institute for Transplantation and Advanced Specialized Therapies), via Tricomi 5, 90127, Palermo, Italy
| | - Roberto Miraglia
- Radiology Unit, Department of Diagnostic and Therapeutic Services, IRCCS ISMETT (Mediterranean Institute for Transplantation and Advanced Specialized Therapies), via Tricomi 5, 90127, Palermo, Italy
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14
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Chapman NG, Dalton SC, Hore TA. Hepatobiliary tuberculosis: a notorious mimic to be considered within the differential diagnosis of cholangiocarcinoma. ANZ J Surg 2021; 91:E706-E707. [PMID: 33764616 DOI: 10.1111/ans.16752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 03/08/2021] [Indexed: 12/27/2022]
Affiliation(s)
- Nicholas G Chapman
- Department of General Surgery, Christchurch Hospital, Canterbury District Health Board, Christchurch, New Zealand
| | - Simon C Dalton
- Department of Infectious Diseases, Christchurch Hospital, Canterbury District Health Board, Christchurch, New Zealand
| | - Todd A Hore
- Department of General Surgery, Christchurch Hospital, Canterbury District Health Board, Christchurch, New Zealand
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Tao BB, Zhu YC. A Common Molecular Switch for H 2S to Regulate Multiple Protein Targets. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1315:1-16. [PMID: 34302686 DOI: 10.1007/978-981-16-0991-6_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Hydrogen sulfide, a small molecule, produced by endogenous enzymes, such as CTH, CBS, and MPST using L-cysteine as substrates, has been reported to have numerous protective effects. However, the key problem that the target of H2S and how it can affect the structure and activity of biological molecules is still unknown. Till now, there are two main theories of its working mechanism. One is that H2S can modify the free thiol in cysteine to produce the persulfide state of the thiol and the sulfhydration of cysteine can significantly change the structure and activity of target proteins. The other theory is that H2S, as an antioxidant molecule, can directly break the disulfide bond in target proteins, and the persulfide state of thiol can be an intermediate product during the reaction. Both phenomena exit for no doubt since they are both supported by large amounts of experiments. Here, we will summarize both theories and try to discuss which one is the more effective or direct mechanism for H2S and what is the relationship between them. Therefore, we will discover more protein targets of H2S with the mechanism and understand more about the effect of this small molecule.
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Affiliation(s)
- Bei-Bei Tao
- Shanghai Key Laboratory of Bioactive Small Molecules and Shanghai Key Laboratory of Clinical Geriatric Medicine, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yi-Chun Zhu
- Shanghai Key Laboratory of Bioactive Small Molecules and Shanghai Key Laboratory of Clinical Geriatric Medicine, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China.
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16
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Matsunaga Y, Ariizumi S, Shibuya G, Uemura S, Kato T, Yazawa T, Yamashita S, Omori A, Higuchi R, Takahashi Y, Kotera Y, Egawa H, Yamamoto M. Hepatocellular carcinoma with ring calcification mimicking hydatid disease: a case report. Surg Case Rep 2020; 6:171. [PMID: 32661725 PMCID: PMC7359204 DOI: 10.1186/s40792-020-00927-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 06/26/2020] [Indexed: 01/23/2023] Open
Abstract
Background Ring calcification in hepatocellular carcinoma is extremely rare. Untreated hepatocellular carcinoma occasionally includes calcified lesions. Here, we report a case of ring-calcified hepatocellular carcinoma. Case presentation A 60-year-old man with a hepatic tumor was referred to Tokyo Women’s Medical University Hospital. He had a history of chronic hepatitis C. Computed tomography showed a liver tumor 20 mm in diameter in segment 6 of the Couinaud classification, with ring calcification. Based on this uncommon imaging presentation and the patient’s past exposure to the definitive hosts of Echinococcus multilocularis, he was preoperatively diagnosed with echinococcosis. Partial hepatectomy was performed as a radical treatment for echinococcosis. A final diagnosis of hepatocellular carcinoma was confirmed based on pathological findings. The patient was discharged uneventfully. Conclusion The presentation of an extremely rare hepatocellular carcinoma with ring calcification may be disguised as hydatid disease.
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Affiliation(s)
- Yutaro Matsunaga
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Shunichi Ariizumi
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Go Shibuya
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Shuichiro Uemura
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Takaaki Kato
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Takehisa Yazawa
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Shingo Yamashita
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Akiko Omori
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Ryota Higuchi
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Yutaka Takahashi
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Yoshihito Kotera
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Hiroto Egawa
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Masakazu Yamamoto
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, 8-1Kawada-cho, Shinjuku-ku, Tokyo, Japan.
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17
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Pattarapanawan M, Uemura M, Miyazaki N, Takami S, Tomiyasu H, Tsunekawa N, Hirate Y, Fujishiro J, Kurohmaru M, Kanai-Azuma M, Higashiyama H, Kanai Y. Anatomical and histological characteristics of the hepatobiliary system in adult Sox17 heterozygote mice. Anat Rec (Hoboken) 2020; 303:3096-3107. [PMID: 32478476 DOI: 10.1002/ar.24466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 04/04/2020] [Accepted: 04/09/2020] [Indexed: 12/13/2022]
Abstract
Biliary atresia (BA) is a rare neonatal disease characterized by inflammation and obstruction of the extrahepatic bile ducts (EHBDs). The Sox17-haploinsufficient (Sox17+/- ) mouse is an animal model of BA that encompasses bile duct injury and subsequent BA-like inflammation by the neonatal stage. Most Sox17+/- neonates die soon after birth, but some Sox17+/- pups reach adulthood and have a normal life span, unlike human BA. However, the phenotype and BA-derived scars in the hepatobiliary organs of surviving Sox17+/- mice are unknown. Here, we examined the phenotypes of the hepatobiliary organs in post-weaning and young adult Sox17+/- mice. The results confirmed the significant reduction in liver weight, together with peripheral calcinosis and aberrant vasculature in the hepatic lobule, in surviving Sox17+/- mice as compared with their wild-type (WT) littermates. Such hepatic phenotypes may be sequelae of hepatobiliary damage at the fetal and neonatal stages, a notion supported by the slight, but significant, increases in the levels of serum markers of liver damage in adult Sox17+/- mice. The surviving Sox17+/- mice had a shorter gallbladder in which ectopic hepatic ducts were more frequent compared to WT mice. Also, the surviving Sox17+/- mice showed neither obstruction of the EHBDs nor atrophy or inflammation of hepatocytes or the intrahepatic ducts. These data suggest that some Sox17+/- pups with BA naturally escape lethality and recover from fetal hepatobiliary damages during the perinatal period, highlighting the usefulness of the in vivo model in understanding the hepatobiliary healing processes after surgical restoration of bile flow in human BA.
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Affiliation(s)
| | - Mami Uemura
- Department of Veterinary Anatomy, The University of Tokyo, Tokyo, Japan
| | - Nanae Miyazaki
- Department of Veterinary Anatomy, The University of Tokyo, Tokyo, Japan
| | - Shohei Takami
- Department of Veterinary Anatomy, The University of Tokyo, Tokyo, Japan.,Department of Pediatric Surgery, The University of Tokyo, Tokyo, Japan
| | - Hirotaka Tomiyasu
- Department of Veterinary Internal Medicine, The University of Tokyo, Tokyo, Japan
| | - Naoki Tsunekawa
- Department of Veterinary Anatomy, The University of Tokyo, Tokyo, Japan
| | - Yoshikazu Hirate
- Center of Experimental Animal, Tokyo Medical and Dental University, Tokyo, Japan
| | - Jun Fujishiro
- Department of Pediatric Surgery, The University of Tokyo, Tokyo, Japan
| | | | - Masami Kanai-Azuma
- Center of Experimental Animal, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroki Higashiyama
- Department of Physiological Chemistry and Metabolism, The University of Tokyo, Tokyo, Japan
| | - Yoshiakira Kanai
- Department of Veterinary Anatomy, The University of Tokyo, Tokyo, Japan
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18
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Zulfiqar M, Shetty A, Tsai R, Gagnon MH, Balfe DM, Mellnick VM. Diagnostic Approach to Benign and Malignant Calcifications in the Abdomen and Pelvis. Radiographics 2020; 40:731-753. [DOI: 10.1148/rg.2020190152] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Maria Zulfiqar
- From the Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110
| | - Anup Shetty
- From the Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110
| | - Richard Tsai
- From the Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110
| | - Marie-Helene Gagnon
- From the Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110
| | - Dennis M. Balfe
- From the Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110
| | - Vincent M. Mellnick
- From the Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110
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19
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Mathew RP, Sam M, Raubenheimer M, Patel V, Low G. Hepatic hemangiomas: the various imaging avatars and its mimickers. Radiol Med 2020; 125:801-815. [DOI: 10.1007/s11547-020-01185-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 03/23/2020] [Indexed: 12/13/2022]
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20
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Raposo Rodríguez L, Fernández García N, Tovar Salazar D, Gómez Illán R, Díaz Sánchez T. Imaging findings for mucinous tumors tumortumorof the abdomen and pelvis. RADIOLOGIA 2019. [DOI: 10.1016/j.rxeng.2019.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Castelblanco M, Nasi S, Pasch A, So A, Busso N. The role of the gasotransmitter hydrogen sulfide in pathological calcification. Br J Pharmacol 2019; 177:778-792. [PMID: 31231793 DOI: 10.1111/bph.14772] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/29/2019] [Accepted: 06/05/2019] [Indexed: 12/11/2022] Open
Abstract
Calcification is the deposition of minerals, mainly hydroxyapatite, inside the cell or in the extracellular matrix. Physiological calcification is central for many aspects of development including skeletal and tooth growth; conversely, pathological mineralization occurs in soft tissues and is significantly associated with malfunction and impairment of the tissue where it is located. Various mechanisms have been proposed to explain calcification. However, this research area lacks a more integrative, systemic, and global perspective that could explain both physiological and pathological processes. In this review, we propose such an integrated explanation. Hydrogen sulfide (H2 S) is a newly recognized multifunctional gasotransmitters and tis actions have been studied in different physiological and pathological contexts, but little is known about its potential role on calcification. Interestingly, we found that H2 S promotes calcification under physiological conditions and has an inhibitory effect on pathological processes. This makes H2 S a potential therapy for diseases related to pathological calcification. LINKED ARTICLES: This article is part of a themed section on Hydrogen Sulfide in Biology & Medicine. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v177.4/issuetoc.
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Affiliation(s)
- Mariela Castelblanco
- Service of Rheumatology, DAL, Lausanne University Hospital (CHUV), University of Lausanne, Lausanne, Switzerland
| | - Sonia Nasi
- Service of Rheumatology, DAL, Lausanne University Hospital (CHUV), University of Lausanne, Lausanne, Switzerland
| | | | - Alexander So
- Service of Rheumatology, DAL, Lausanne University Hospital (CHUV), University of Lausanne, Lausanne, Switzerland
| | - Nathalie Busso
- Service of Rheumatology, DAL, Lausanne University Hospital (CHUV), University of Lausanne, Lausanne, Switzerland
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22
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Imaging findings for mucinous tumors of the abdomen and pelvis. RADIOLOGIA 2019; 61:370-387. [PMID: 31078302 DOI: 10.1016/j.rx.2019.03.003] [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: 10/13/2018] [Revised: 02/25/2019] [Accepted: 03/15/2019] [Indexed: 11/23/2022]
Abstract
This article aims to describe the imaging findings for mucinous tumors of the abdomen and pelvis, which have a similar appearance on imaging tests regardless of the organ in which they develop. Due to the high water content of mucus, the appearance of these tumors is generally similar to that of water on ultrasonography, computed tomography, and magnetic resonance imaging. Another common feature of mucin-producing tumors is that calcifications are often present. The rupture of these lesions and accumulation of mucinous material in the peritoneal cavity gives rise to pseudomyxoma peritonei. It is important to identify mucinous tumors because they have a different prognosis and clinical course than non-mucinous tumors and require different management. Depending on their anatomic location and their imaging characteristics, the treatment approach varies from follow-up to radical surgery together with chemotherapy or radiotherapy or both.
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23
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24
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Reply to “Biliary Cystic Tumor Location Within the Liver”. AJR Am J Roentgenol 2019; 212:W97. [DOI: 10.2214/ajr.18.20649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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25
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Reply to “Calcified Liver Lesions and Mimics on CT”. AJR Am J Roentgenol 2019; 212:W99. [DOI: 10.2214/ajr.18.20648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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26
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27
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Differential Diagnoses of Calcified Liver Lesions. AJR Am J Roentgenol 2019; 212:W20. [DOI: 10.2214/ajr.18.20333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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