Abstract
Purpose
To evaluate the efficacy of percutaneous biopsy for diagnosing intrahepatic cholangiocarcinoma (IHCCA).
Methods
Retrospective review of biopsy and pathology databases from 2006 to 2019 yielded 112 patients (54F/58 M; mean age, 62.9 years; 27 cirrhotic) with IHCCA who underwent percutaneous biopsy. Data regarding the lesion, biopsy procedure technique, and diagnostic yield were collected. If biopsy was non-diagnostic or discordant with imaging, details of repeat biopsy or resection/explant were gathered. A control group of 100 consecutive patients (56F/44 M; mean age, 63 years, 5 cirrhotic) with focal liver lesions > 1 cm was similarly assessed.
Results
Mean IHCCA lesion size was 6.1 ± 3.6 cm, with dominant lesion sampled in 78% (vs. satellite in 22%). 95% (n = 106) were US guided and 96% were core biopsies (n = 108), typically 18G (n = 102, 91%), median 2 passes. 18 patients (16%) had discordant/ambiguous pathology results requiring repeat biopsy, with two patients requiring 3–4 total attempts. A 4.4% minor complication rate was seen. Mean time from initial biopsy to final diagnosis was 60 ± 120 days. Control group had mean lesion size of 2.9 ± 2.5 cm and showed a non-diagnostic rate of 3.3%, both significantly lower than that seen with CCA, with average time to diagnosis of 21 ± 28.8 days (p = 0.002, p = 0.001).
Conclusion
IHCCA is associated with lower diagnostic yield at initial percutaneous biopsy, despite larger target lesion size. If a suspicious lesion yields a biopsy result discordant with imaging, the radiologist should recommend prompt repeat biopsy to prevent delay in diagnosis.
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Meghan G. Lubner received prior grant funding from Ethicon and Philips. Shane A. Wells declares that he is a consultant in Ethicon. Timothy J. Ziemlewicz declares that he is a consultant in Ethicon and Histosonics. Sam J. Lubner has a new disclosure, now serving as a consultant and shareholder for Elephas. Perry J. Pickhardt declares that he is an advisor to Bracco and is a shareholder in Elucent, SHINE, and Cellectar Biosciences.
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Lubner, M.G., Larison, W.G., Watson, R. et al. Efficacy of percutaneous image-guided biopsy for diagnosis of intrahepatic cholangiocarcinoma. Abdom Radiol 47, 2647–2657 (2022). https://doi.org/10.1007/s00261-021-03278-3
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DOI: https://doi.org/10.1007/s00261-021-03278-3