Case Report
Copyright ©2011 Baishideng Publishing Group Co., Limited. All rights reserved.
World J Gastrointest Oncol. Oct 15, 2011; 3(10): 148-152
Published online Oct 15, 2011. doi: 10.4251/wjgo.v3.i10.148
Primary hepatic leiomyosarcoma: Case report and literature review
Nairuthya Shivathirthan, Junji Kita, Yukihiro Iso, Hiroyuki Hachiya, Park KyungHwa, Tokihiko Sawada, Keiichi Kubota
Nairuthya Shivathirthan, Junji Kita, Yukihiro Iso, Hiroyuki Hachiya, Park KyungHwa, Tokihiko Sawada, Keiichi Kubota, Second Department of Surgery, Dokkyo Medical University, 880 Kita Kobayashi, Mibu, Tochigi 321-0293, Japan
Author contributions: Shivathirthan N did the literature review and wrote the paper; Iso Y, Hachiya H and KyungHwa P were part of the operating team; Kita J and Sawada T reviewed the manuscript; Kubota K reviewed and approved the manuscript.
Correspondence to: Nairuthya Shivathirthan, MD, Second Department of Surgery, Dokkyo Medical University, 880 Kita Kobayashi, Mibu, Tochigi 321-0293, Japan. nairuthya@gmail.com
Telephone: +81-282-872158 Fax: +81-282-866317
Received: May 16, 2011
Revised: September 21, 2011
Accepted: September 28, 2011
Published online: October 15, 2011
Abstract

Primary hepatic leiomyosarcoma are rare tumors with less than 30 cases reported in the English literature. Non specific presentations and often diagnosis delayed until they reach a large size, is the norm with therapy leading to an often dismal prognosis. A 67-year-old man presented complaining of abdominal pain and a palpable abdominal mass since Jan 2010. Abdominal ultrasonography and abdominal computed tomography revealed a large tumor in the left lobe of the liver. Surgical exploration was undertaken and an extended left hepatectomy with extension onto the dorsal part of segment 8 preserving the MHV with partial resection of segment 6 was undertaken. The weight of the resected specimen was 1300 g of the left lobectomy specimen and 8 g of the segment 6 partial resection specimen. The pathology report confirmed the diagnosis of leiomyosarcoma. On immunohistochemistry, the tumor cells were positive for smooth muscle actin stain. The patient is on regular follow up and is currently 9 mo post resection with no evidence of recurrence. We report the case of a resected primary hepatic leiomyosarcoma and emphasize the need for a global database for these rare tumors to promote a better and broader understanding of this less understood subject.

Keywords: Primary hepatic leiomyosarcoma, Smooth muscle actin, Smooth muscle, Hepatectomy