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Small hepatocellular carcinoma with ring calcification: A case report and literature review.
MedLine Citation:
PMID:  23326175     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Ring calcification in untreated hepatocellular carcinoma (HCC) is extremely rare, with only 3 previously reported cases in the English-language literature. A case of HCC with ring calcification was reported in this paper. Additionally, 3 previously reported cases of HCC with ring calcification were reviewed. In 3 of these 4 cases (including our case), surgery was performed. Although the size of the ring-calcified lesion ranged from 3.0-3.7 cm in previously reported cases, the size was only 1 cm in ours. The differentiation of the tumor was moderate in the 2 previously reported cases in the histological findings and poor in ours. In spite of their poor differentiation for their sizes, these tumors showed no early enhancement in dynamic computed tomography. All calcified tumors showed a thick fibrous capsule and extensive necrosis histologically. Ring calcification was considered to result from a circulatory disturbance caused by the imbalance between the less abundant arterial blood flow and high inner pressure induced by either the thick fibrous capsule or vigorous proliferation due to the poor differentiation. Ring calcification in untreated HCC may suggest a lower differentiation of the tumor. Even if its size is small, hepatic resection should be performed for any tumor with ring calcification because poor differentiation is considered to be one of the risk factors for recurrence after local ablation therapy, including radio frequency ablation.
Authors:
Takashi Murakami; Daisuke Morioka; Hideki Takakura; Yasuhiko Miura; Shinji Togo
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  World journal of gastroenterology : WJG     Volume:  19     ISSN:  1007-9327     ISO Abbreviation:  World J. Gastroenterol.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-01-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100883448     Medline TA:  World J Gastroenterol     Country:  China    
Other Details:
Languages:  eng     Pagination:  129-32     Citation Subset:  IM    
Affiliation:
Takashi Murakami, Daisuke Morioka, Hideki Takakura, Yasuhiko Miura, Shinji Togo, Department of Surgery, Yokohama Ekisaikai Hospital, Yokohama, Kanagawa 231-0036, Japan.
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