Synchronous multicentric small hepatocellular carcinomas: defining the capsule on high-frequency intraoperative ultrasonography with pathologic correlation

Purpose The aim of this study was to define the capsules of synchronous multicentric small hepatocellular carcinomas (HCCs) with use of high-frequency intraoperative ultrasonography (IOUS). Methods Among the 131 consecutive patients undergoing hepatic resection and high-frequency IOUS for HCC, 16 sy...

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Main Authors: Jae Hong Ahn, Dae-Woon Eom, Dae Shick Ryu, Man Soo Park, Seung Mun Jung, Kun Moo Choi, Gab Jin Cheon, Soo-Jung Choi, Hyuk Jai Jang
Format: Article
Language:English
Published: Korean Society of Ultrasound in Medicine 2016-10-01
Series:Ultrasonography
Subjects:
Online Access:http://e-ultrasonography.org/upload/usg-16001.pdf
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author Jae Hong Ahn
Dae-Woon Eom
Dae Shick Ryu
Man Soo Park
Seung Mun Jung
Kun Moo Choi
Gab Jin Cheon
Soo-Jung Choi
Hyuk Jai Jang
author_facet Jae Hong Ahn
Dae-Woon Eom
Dae Shick Ryu
Man Soo Park
Seung Mun Jung
Kun Moo Choi
Gab Jin Cheon
Soo-Jung Choi
Hyuk Jai Jang
author_sort Jae Hong Ahn
collection DOAJ
description Purpose The aim of this study was to define the capsules of synchronous multicentric small hepatocellular carcinomas (HCCs) with use of high-frequency intraoperative ultrasonography (IOUS). Methods Among the 131 consecutive patients undergoing hepatic resection and high-frequency IOUS for HCC, 16 synchronous multicentric small HCCs in 13 patients were histologically diagnosed in the resected specimens. High-frequency IOUS and pathologic findings of these lesions were compared, with particular focus on the presence and appearance of the capsule in or around each lesion. Results Synchronous multicentric small HCCs were pathologically classified into distinctly nodular (n=12) or vaguely nodular (n=4) types. All 12 distinctly nodular HCCs including six subcentimeter lesions showed detectable capsules on high-frequency IOUS and pathology. The capsules appeared as a hypoechoic rim containing hyperechoic foci (n=6), hypoechoic rim (n=5), or hyperechoic rim (n=1) with varying degrees of coverage around each lesion. Histologically, the capsules were composed of a combination of one to four layers consisting of a fibrous capsule, peritumoral fibrosis, prominent small vessels, and entrapped hepatic parenchyma. Conclusion Synchronous multicentric small HCCs with distinctly nodular type, even at subcentimeter size, can show capsules with varying coverage and diverse echogenicity on high-frequency IOUS.
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spelling doaj.art-982b43156c614a28a1d3ff80b386e38a2022-12-21T20:30:43ZengKorean Society of Ultrasound in MedicineUltrasonography2288-59192288-59432016-10-0135433534410.14366/usg.16001132Synchronous multicentric small hepatocellular carcinomas: defining the capsule on high-frequency intraoperative ultrasonography with pathologic correlationJae Hong Ahn0Dae-Woon Eom1Dae Shick Ryu2Man Soo Park3Seung Mun Jung4Kun Moo Choi5Gab Jin Cheon6Soo-Jung Choi7Hyuk Jai Jang8 Department of Radiology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea Department of Pathology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea Department of Radiology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea Department of Radiology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea Department of Radiology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea Department of Surgery, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea Department of Hepatology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea Department of Radiology, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea Department of Surgery, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, KoreaPurpose The aim of this study was to define the capsules of synchronous multicentric small hepatocellular carcinomas (HCCs) with use of high-frequency intraoperative ultrasonography (IOUS). Methods Among the 131 consecutive patients undergoing hepatic resection and high-frequency IOUS for HCC, 16 synchronous multicentric small HCCs in 13 patients were histologically diagnosed in the resected specimens. High-frequency IOUS and pathologic findings of these lesions were compared, with particular focus on the presence and appearance of the capsule in or around each lesion. Results Synchronous multicentric small HCCs were pathologically classified into distinctly nodular (n=12) or vaguely nodular (n=4) types. All 12 distinctly nodular HCCs including six subcentimeter lesions showed detectable capsules on high-frequency IOUS and pathology. The capsules appeared as a hypoechoic rim containing hyperechoic foci (n=6), hypoechoic rim (n=5), or hyperechoic rim (n=1) with varying degrees of coverage around each lesion. Histologically, the capsules were composed of a combination of one to four layers consisting of a fibrous capsule, peritumoral fibrosis, prominent small vessels, and entrapped hepatic parenchyma. Conclusion Synchronous multicentric small HCCs with distinctly nodular type, even at subcentimeter size, can show capsules with varying coverage and diverse echogenicity on high-frequency IOUS.http://e-ultrasonography.org/upload/usg-16001.pdfLiver neoplasmsCarcinoma, hepatocellularUltrasonography
spellingShingle Jae Hong Ahn
Dae-Woon Eom
Dae Shick Ryu
Man Soo Park
Seung Mun Jung
Kun Moo Choi
Gab Jin Cheon
Soo-Jung Choi
Hyuk Jai Jang
Synchronous multicentric small hepatocellular carcinomas: defining the capsule on high-frequency intraoperative ultrasonography with pathologic correlation
Ultrasonography
Liver neoplasms
Carcinoma, hepatocellular
Ultrasonography
title Synchronous multicentric small hepatocellular carcinomas: defining the capsule on high-frequency intraoperative ultrasonography with pathologic correlation
title_full Synchronous multicentric small hepatocellular carcinomas: defining the capsule on high-frequency intraoperative ultrasonography with pathologic correlation
title_fullStr Synchronous multicentric small hepatocellular carcinomas: defining the capsule on high-frequency intraoperative ultrasonography with pathologic correlation
title_full_unstemmed Synchronous multicentric small hepatocellular carcinomas: defining the capsule on high-frequency intraoperative ultrasonography with pathologic correlation
title_short Synchronous multicentric small hepatocellular carcinomas: defining the capsule on high-frequency intraoperative ultrasonography with pathologic correlation
title_sort synchronous multicentric small hepatocellular carcinomas defining the capsule on high frequency intraoperative ultrasonography with pathologic correlation
topic Liver neoplasms
Carcinoma, hepatocellular
Ultrasonography
url http://e-ultrasonography.org/upload/usg-16001.pdf
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