Journal of clinical gastroenterology · 2026
FibroScan Discordance With Liver Biopsy Significantly Overestimates Advanced Fibrosis and Cirrhosis in MASLD Subjects With Class 3 Obesity: Implications for Resmetirom Eligibility.
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Velji-Ibrahim Jena, Woodard Jordan, Alden Jay, Abrams Gary A
Аннотация
GOALS: To investigate the effect of obesity on the stages of fibrosis discordance between FibroScan and liver biopsy.
BACKGROUND: Metabolic dysfunction-associated steatotic liver disease (MASLD) is the leading cause of liver disease worldwide. Accurate fibrosis assessment is essential in MASLD patients for prognosis and treatment. Vibration-controlled transient elastography using FibroScan can overestimate liver fibrosis in obese patients.
STUDY: This retrospective study included 245 MASLD patients who underwent FibroScan and liver biopsy. Participants were included with FibroScan controlled attenuation parameter (CAP) 250+, 10 liver stiffness measurements (LSM) with IQR/med ≤30%, and 10+ portal tracts on biopsy. Discordance was defined as a ≥2 stage difference between FibroScan and liver biopsy. Participants were stratified by BMI and obesity class to assess their association with discordance. We conducted a post hoc analysis to determine the implication of discordance on resmetirom eligibility. Data was entered into SPSS v28.
RESULTS: Among 245 patients, 29.4% exhibited a ≥2 stage discordance between FibroScan and biopsy. Class 3 obesity was significantly associated with discordance (38.6%) compared with class 2 obesity (24.6%) and class 0 to 1 obesity (18.4%). FibroScan suggested cirrhosis in 66 (57.9%) participants with class 3 obesity, however, liver biopsy confirmed cirrhosis in only 16 (24.2%) subjects and identified 28 (42.4%) subjects with stages 2 to 3 fibrosis, making them potentially eligible for resmetirom.
CONCLUSIONS: FibroScan significantly overestimates advanced fibrosis and cirrhosis in class 3 obesity. A second noninvasive test is warranted for accurate liver-directed therapeutic allocation and to minimize unnecessary biopsies in MASLD management.
BACKGROUND: Metabolic dysfunction-associated steatotic liver disease (MASLD) is the leading cause of liver disease worldwide. Accurate fibrosis assessment is essential in MASLD patients for prognosis and treatment. Vibration-controlled transient elastography using FibroScan can overestimate liver fibrosis in obese patients.
STUDY: This retrospective study included 245 MASLD patients who underwent FibroScan and liver biopsy. Participants were included with FibroScan controlled attenuation parameter (CAP) 250+, 10 liver stiffness measurements (LSM) with IQR/med ≤30%, and 10+ portal tracts on biopsy. Discordance was defined as a ≥2 stage difference between FibroScan and liver biopsy. Participants were stratified by BMI and obesity class to assess their association with discordance. We conducted a post hoc analysis to determine the implication of discordance on resmetirom eligibility. Data was entered into SPSS v28.
RESULTS: Among 245 patients, 29.4% exhibited a ≥2 stage discordance between FibroScan and biopsy. Class 3 obesity was significantly associated with discordance (38.6%) compared with class 2 obesity (24.6%) and class 0 to 1 obesity (18.4%). FibroScan suggested cirrhosis in 66 (57.9%) participants with class 3 obesity, however, liver biopsy confirmed cirrhosis in only 16 (24.2%) subjects and identified 28 (42.4%) subjects with stages 2 to 3 fibrosis, making them potentially eligible for resmetirom.
CONCLUSIONS: FibroScan significantly overestimates advanced fibrosis and cirrhosis in class 3 obesity. A second noninvasive test is warranted for accurate liver-directed therapeutic allocation and to minimize unnecessary biopsies in MASLD management.