カクモト　アキナリ   KAKUMOTO Akinari   覺本　晃成    所属   医学部 医学科（附属足立医療センター）    職種   助教
論文種別	症例報告
言語種別	英語
査読の有無	査読あり
表題	Primary Hepatic Angioleiomyoma: A Case Report.
掲載誌名	正式名：The American journal of case reports 略　 称：Am J Case Rep ISSNコード：19415923/19415923
掲載区分	国外
巻・号・頁	24,pp.e938645
著者・共著者	Jamiyan Tsengelmaa†, Kuroda Hajime*, Luvsan Ganchudur, Munkhnyam Tserennadmid, Kakumoto Akinari, Enkhbat Bayarmaa
発行年月	2023/02
概要	BACKGROUND Primary hepatic angioleiomyoma is a rare mesenchymal tumor that is characterized by blood vessels and smooth muscle. Herein, we report an extremely rare case of primary hepatic angioleiomyoma and discuss the clinicopathological features. CASE REPORT A 60-year-old Mongolian man was diagnosed with a hepatic tumor in the second and third segments of screening in 2012. It had been under control by a physician for 10 years. The patient had discomfort and vague pain in the right side of the abdomen since April 2022. Hepatitis virus markers (hepatitis B and hepatitis C) were negative. Plain computed tomography revealed an 80-mm solitary liver lesion in the left lobe with well-defined margins and heterogeneous enhancement. A left hepatectomy was performed in May 2022. The cut surface of the tumor showed a grayish-white, elastic, hard mass with a diameter of 50×80 mm. Histological findings of the tumor revealed that it was clearly demarcated from the surrounding liver tissues with relatively clear boundaries showing thick, muscle-coated blood vessels with perivascular smooth muscle bundles. Immunohistochemical staining showed that the smooth muscle cells were strongly diffuse and positive for smooth muscle actin. CONCLUSIONS Clinically, primary hepatic angioleiomyoma should be distinguished from other types of liver tumors, especially liver cancer. In combination with our long-term observation and other case reports, we recommend general follow-up if the preoperative pathological diagnosis can be confirmed and the patient has no other symptoms.
DOI	10.12659/AJCR.938645
PMID	36805667