%0 Journal Article
%T Primary liposarcoma of the ascending colon: a rare case of mixed type presenting as hemoperitoneum combined with other type of retroperitoneal liposarcoma
%A Yoon Choi
%A Yong Kim
%A So Jin
%J BMC Cancer
%D 2010
%I BioMed Central
%R 10.1186/1471-2407-10-239
%X A case is reported a 41-year-old man with liposarcoma of ascending colon which was presented as hemoperitoneum and combined with a different histological type of retroperitoneal liposarcoma. He visited hospital with right lower abdominal pain and palpable mass. Laboratory data including tumor markers were within normal limits, and computed tomography revealed a 15 กม 10 cm sized enhancing soft mass. Right hemicolectomy was performed, and after that, a further large retroperitoneal mass was revealed and this was also radically excised. Mixed-type colon liposarcoma and well differentiated type of retroperitoneal liposarcoma were diagnosed in pathologic report. The patient has remained free of disease for 24 months.No standardized guidelines have been established for its treatment because too small a number of cases have been reported, but surgical resection was considered the treatment of choice.Liposarcoma is a common sarcoma of the soft tissues in adults, and it occurs most commonly in the extremities and retroperitoneum[1]. However, it has been observed rarely in the gastrointestinal system, and colon liposarcoma is extremely uncommon. We report a new case of ascending colon liposarcoma, and to the best of our knowledge, this is the first case of mixed-type colon liposarcoma presenting as hemoperitoneum, and the first case of combined with liposarcoma in colon and retroperitoneum.A 41-year-old man visited the emergency room with abdominal pain and a palpable abdominal mass for 1 day. He had no history of disease apart from an appendectomy performed 1 year ago, and histological examination of the appendix showed features of appendicitis only. A large, soft, tender mass was palpable in the right lower abdomen. Laboratory data upon admission were within normal limits, and tumor markers such as carbohydrate antigen (CA) 19-9, carcinoembryonic antigen (CEA), and alpha-fetoprotein (AFP) were also normal. A few hours later, he complained of severe abdominal pain, and the a
%U http://www.biomedcentral.com/1471-2407/10/239