Abstract
A 72-year-old man seen at the center because of a right inguinal bulging was diagnosed as having a right inguinal hernia and underwent a hernia repair through the anterior approach. However, no hernia sac was seen, and fatty tissue prolapsed from the internal inguinal ring was identified. Abdominal enhanced CT scan performed after the operation revealed a 15×10 cm tumor, almost of which showed the concentration of fat, in the lower abdomen. Liposarcoma was likely. Reoperation was done and the tumor was removed under laparotomy. The tumor was found to be well differentiated liposarcoma arisen from the upper part of the pubic bone.
So far there have been ten reported cases of liposarcoma enlarged to the abdominal cavity and presented with an inguinal bulging. All the ten cases were of liposarcoma arisen from the retroperutoneum, and this case is the first report of liposarcoma which had arisen from the upper part of the pubic bone and presented with an inguinal bulging. Although it is rare that liposarcoma grown into the abdominal cavity presents with an inguinal bulging, if we notice some abnormalities in the hardness and/or reduction of such a bulging, close exploration of the abdomen is required considering a possible enlargement of liposarcoma to the abdominal cavity.
