Because the outcome in patients with advanced HCC is uniformly dismal, early diagnosis is crucial in order to provide effective treatment. HCCs smaller than 1.5cm tend to be isointense[40]. CEUS utilizes microbubbles that are confined to the intravascular space as opposed to contrast agents in CT and MRI that are rapidly cleared from the blood pool into the extracellular space. Yoo HJ, Lee JM, Lee JY, et al. Ultrasound elastography is a relatively new imaging technique that allows non-invasive estimation and imaging of tissue elasticity distribution within biological tissues using conventional real-time ultrasound with modified software[76]. [71] have shown that CEUS is sensitive to the detection of arterial hypervascularity (Fig. Gut. WebComputed tomography (CT) The CT scan is an x-ray test that makes detailed images of your body. Courtesy of Memorial Sloan-Kettering Cancer Center, featuring Leslie H. Blumgart, MD. Previous studies have attempted to explore the clinico-pathological characteristics and surgical treatment of HCC with BDTT ( 6 10 ). This test can show tumors growing in the liver, which then can be tested for cancer, if needed. Available at https://www.cdc.gov/hepatitis/global/index.htm. Piana G, Trinquart L, Meskine N, Barrau V, Beers BV, Vilgrain V. New MR imaging criteria with a diffusion-weighted sequence for the diagnosis of hepatocellular carcinoma in chronic liver diseases. Therefore, although US is routinely used as a screening tool for detection of HCC in cirrhotic livers, CEUS is more applicable for the characterization of a known lesion. Gd-EOB-DTPA therefore has significant advantages in terms of safety, timing of examination and potentially better contrast. Bismuth H, Majno PE, Adam R. Liver transplantation for hepatocellular carcinoma. 2006 Nov. 136 (1):125-35. ), Right hepatectomy. 1997 Jun 26. Antineoplastics, Tyrosine Kinase Inhibitor, http://gco.iarc.fr/today/data/factsheets/cancers/11-Liver-fact-sheet.pdf, https://www.cdc.gov/hepatitis/global/index.htm, https://www.who.int/news-room/fact-sheets/detail/immunization-coverage, https://www.cancer.org/content/dam/cancer-org/research/cancer-facts-and-statistics/annual-cancer-facts-and-figures/2022/2022-cancer-facts-and-figures.pdf, https://seer.cancer.gov/statfacts/html/livibd.html, https://www.medscape.com/viewarticle/927374, https://www.medscape.com/viewarticle/920826#vp_2, https://www.nccn.org/professionals/physician_gls/pdf/hepatobiliary.pdf, https://www.fda.gov/drugs/drug-approvals-and-databases/fda-approves-atezolizumab-plus-bevacizumab-unresectable-hepatocellular-carcinoma, https://www.medscape.com/viewarticle/955445. HCCs are variable on T1-weighted images but mostly hypointense. [QxMD MEDLINE Link]. Prevention of hepatocellular carcinoma by universal vaccination against hepatitis B virus: the effect and problems. 2012 Jan. 151 (1):55-60. [QxMD MEDLINE Link]. [Guideline] Su GL, Altayar O, O'Shea R, Shah R, Estfan B, Wenzell C, et al. 2005 Sep. 11(9):1086-92. When elevated, the AFP is 75-91% specific, and values greater than 400 ng/mL are generally considered diagnostic of HCC in the proper clinical context, including appropriate radiologic findings. HCCs following locoregional treatment (LRT) can have variable appearances on CT and MRI and knowledge of post-treatment appearance is important for assessment of outcome and detection of residual or recurrent HCCs as there are no other reliable markers. In-phase and opposed phase images can show microscopic fat components within HCCs (Fig. [QxMD MEDLINE Link]. Global incidence trends in primary liver cancer by age at diagnosis, sex, region, and etiology, 1990-2017. Large HCC (*) with portal vein invasion. John Geibel, MD, MSc, DSc, AGAF is a member of the following medical societies: American Gastroenterological Association, American Physiological Society, American Society of Nephrology, Association for Academic Surgery, International Society of Nephrology, New York Academy of Sciences, Society for Surgery of the Alimentary TractDisclosure: Nothing to disclose. However, the conventional RECIST takes into account only the overall diameter of a nodule, which is usually misleading when applied to LRT of HCC as treatment-induced changes in tissue viability often do not result in corresponding changes in lesion size[98]. [QxMD MEDLINE Link]. Screening is typically performed using ultrasonography (US), with or without serum alpha-fetoprotein (AFP) measurement, generallyevery 6 months. The diagnostic and economic impact of contrast imaging techniques in the diagnosis of small hepatocellular carcinoma in cirrhosis. Bottom row: CT after 6 weeks of ablation; the HCC is replaced by a zone of hypodensity that is larger than the tumor and shows no enhancement (white arrow) in both the arterial (c) and portal venous phase (d). The most recent guidelines[26] recommend US for surveillance of HCC at screening intervals of 6 months. 391 (10126):1163-1173. Furthermore, only a small dose of Gd-EOB-DTPA (0.025mmol/kg) is required compared with 0.1 mmol/kg for Gd-BOPTA. 1, ,2)2) are considered to be the definitive imaging features of HCC and recommended in the guidelines by various associations for liver studies[2,4,23]. 2015 Aug. 139 (8):1028-34. Abou-Alfa GK, Schwartz L, Ricci S, et al. Classic CT findings of HCC include a hypervascular pattern with arterial enhancement and rapid washout during the portal venous phase. HCC often invades the portal vein and forms a tumor thrombus. [QxMD MEDLINE Link]. 8(5):410-6. [QxMD MEDLINE Link]. Sawada N, Inoue M, Iwasaki M, Sasazuki S, Shimazu T, Yamaji T, et al. March 13, 2020. Hepatocellular adenoma: multiphasic CT and histopathologic findings Paradoxical high signal intensity of hepatocellular carcinoma in the hepatobiliary phase of Gd-EOB-DTPA enhanced MRI: initial experience. [Full Text]. [38]. 8 (7):1205-11. Selection criteria for liver transplantation in early-stage hepatocellular carcinoma with cirrhosis: results of a multicenter study. Frequently, 12 cm nodules do not show typical features of HCC[26] and biopsy is required to establish the diagnosis and institute early treatment. [QxMD MEDLINE Link]. 2013 Apr. Therefore, ongoing research into the detection and characterization of small lesions is especially important. 84 (2):413-35, viii. Global Viral Hepatitis: Millions of People are Affected. AFP is elevated in 75% of cases. However, simultaneous detection of these markers in various combinations could improve sensitivity[88]. Hepatocellular carcinoma in cirrhotic liver disease: functional computed tomography with perfusion imaging in the assessment of tumor vascularization. [36] Disadvantages of CT include cost, radiation exposure, and the need for iodinated contrast. [QxMD MEDLINE Link]. 1996 Mar 14. 45 (9):1169-79. Characterization of small nodules in cirrhosis by assessment of vascularity: the problem of hypovascular hepatocellular carcinoma. ), Right hepatectomy. Stefaniuk P, Cianciara J, Wiercinska-Drapalo A. DWI, although not reliable in the differentiation of small nodules in cirrhotic liver may help increase the diagnostic performance of readers[62] and provide additional information to differentiate HCCs from dysplastic nodules[63]. Non-tumorous wedge-like enhancement can also occur at the periphery of an ablated lesion secondary to iatrogenic arteriovenous shunting[101]. High alpha-fetoprotein level correlates with high stage, early recurrence and poor prognosis of hepatocellular carcinoma: significance of hepatitis virus infection, age, p53 and beta-catenin mutations. Clinical features and diagnosis of hepatocellular carcinoma Functional MR imaging assessment of tumour response after 90Y microsphere treatment in patients with unresectable hepatocellular carcinoma. Nasu K, Kuroki Y, Tsukamoto T, Nakajima H, Mori K, Minami M. Diffusion-weighted imaging of surgically resected hepatocellular carcinoma: imaging characteristics and relationship among signal intensity, apparent diffusion coefficient, and histopathologic grade. Meta-analysis: evaluation of adjuvant therapy after curative liver resection for hepatocellular carcinoma. J Clin Gastroenterol. However, EASL-EORTC guidelines[5] consider a 12cm nodule still problematic when atypical features are present and recommend histologic diagnosis. The presence of intracellular bile or staining for AFP may be helpful in distinguishing HCC from other hepatic malignancies (eg, cholangiocarcinoma). 2014 Sep. 109 (9):1328-47; quiz 1348. Beasley RP, Hwang LY, Lin CC, Chien CS. CT and MRI of hepatocellular carcinoma: an update - PubMed Resection and liver transplantation have been the foundation of curative surgical treatment with the relatively recent advent of ablative techniques. 142 (7):1468-75. Tsuboyama T, Onishi H, Kim T, et al. In contrast, regenerative nodules generally appear isoattenuating or hypoattenuating when compared with the remaining parenchyma. Roayaie S, Obeidat K, Sposito C, Mariani L, Bhoori S, Pellegrinelli A, et al. Imaging tests are favored for surveillance and diagnosis of HCC. In: Textbook of Cancer Epidemiology. 12(5):351-5. Potential drawbacks that may be encountered when using FDG-PET are false-negative results due to a partial volume effect when dealing with small lesions (<1cm) or due to diabetes and false-positive results due to abscess formation[3]. Venkatesh SK, Yin M, Glockner JF, et al. https://www.medscape.com/viewarticle/926795, Society for Surgery of the Alimentary Tract, Association of Program Directors in Surgery, American Association for the Study of Liver Diseases, Dutch Society of Gastroenterology/Enterology, European Association for the Study of the Liver. [38] the Japan Integrated Staging System, and the Cancer of the Liver Italian Program (CLIP) are the most widely used staging systems. 2005 Nov 1. On CT, HCC generally appears as a focal nodule with early enhancement on the arterial phase with rapid washout of contrast on the portal venous phase of a three-phase contrast scan. AFP levels can also be elevated because of other conditions, such as following liver resection (transient until regeneration complete), recovery following toxic injury, or seroconversion following hepatitis B infection (typically inducing transient exacerbation of inflammation). Assessment of therapeutic response in hepatocellular carcinoma treated with percutaneous radio frequency ablation: comparison of multiphase helical computed tomography and power Doppler ultrasonography with a microbubble contrast agent. Lencioni R, Mascalchi M, Caramella D, Bartolozzi C. Small hepatocellular carcinoma: differentiation from adenomatous hyperplasia with color Doppler US and dynamic Gd-DTPA-enhanced MR imaging. [QxMD MEDLINE Link]. Hepatocellular carcinoma (HCC). However, a large prospective study comparing [11C]acetate and FDG-PET/CT concluded that both tracers as well as the 2 tracers used in combination still had low sensitivity for the detection of small primary HCCs[86]. 24(26):4293-300. [QxMD MEDLINE Link]. Randomised, multicentre prospective trial of transarterial chemoembolisation (TACE) plus sorafenib as compared with TACE alone in patients with hepatocellular carcinoma: TACTICS trial. Available at https://www.medscape.com/viewarticle/955445. The imaging diagnosis of HCC can be done where state of the art CT and MRI machines are available with expertise in interpretation. [QxMD MEDLINE Link]. Contrast-enhanced CT is the most frequently used imaging modality secondary to its relative accessibility, robustness and ability to scan the chest and abdomen in one setting[99]. Although the pathologic and imaging features of ICC have been clearly identified, recent updates have addressed the pathologic classification and imaging features of ICC using new imaging techniques. [QxMD MEDLINE Link]. A non-negligible number of HCCs can be hypovascular and thereby lead to a false-negative diagnosis using the imaging criteria[26]. Real time elastography- a non-invasive diagnostic method of small hepatocellular carcinoma in cirrhosis. Sorafenib: A Review in Hepatocellular Carcinoma. (From Blumgart LH. Radiol Clin North Am. 2007 Jul. J Hepatobiliary Pancreat Surg. July 19, 2021; Accessed: February 28, 2022. Llovet JM, Br C, Bruix J. Prognosis of hepatocellular carcinoma: the BCLC staging classification. The role of PET in the evaluation of HCC is evolving with promise seen especially with the use of a hepatocyte-specific PET tracer. In addition to imaging techniques, early diagnosis of HCC can be made with biomarkers. Host and Viral Genetic Variation in HBV-Related Hepatocellular Carcinoma. hepatocellular CT arteriography of HCC (arrow) in a 66-year-old patient with cryptogenic cirrhosis. However, the tumor size is predictive of outcome, as it predicts the likelihood of major venous involvement. Omata M, Lesmana LA, Tateishi R, et al. Hepatocellular Carcinoma (HCC) Workup - Medscape