Synchronous multicentric small hepatocellular carcinomas: defining the capsule on high-frequency intraoperative ultrasonography with pathologic correlation
Ultrasonography
;
: 335-344, 2016.
Article
in English
| WPRIM
| ID: wpr-731057
ABSTRACT
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Fibrosis
/
Capsules
/
Ultrasonography
/
Carcinoma, Hepatocellular
/
Liver Neoplasms
Type of study:
Controlled clinical trial
/
Diagnostic study
Limits:
Humans
Language:
English
Journal:
Ultrasonography
Year:
2016
Type:
Article
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