Relapse of giant retroperitoneal liposarcoma. A clinical case

Introduction. Liposarcoma is the most common mesenchymal tumor, in 10-15 % of cases located in the retroperitoneal space. Diagnosis of liposarcomas can be difficult because of the lack of obvious symptoms for a long time, that is why neoplasms can reach huge sizes. Operated giant liposarcomas are dangerous for the occurrence of relapse in the future.Materials and methods. A 74-year-old patient was hospitalized with complaints of abdominal enlargement, which caused a progressive decline in the quality of life. Operation and histological examination were performed more than 10 years ago, a diagnosis was made - retroperitoneal lipoma.We carried out a rational and maximally safe resection of the neoplasm. According to the results of histological examination, considering the size, location and anamnesis, the neoplastic process should be regarded as a highly differentiated liposarcoma.Discussion. Planning an operation for giant liposarcomas, especially relapses, it is necessary to take into consideration the risk of possible bleeding and somatic complications, and to carry out the operation in the maximum possible, but safe amount. Proper planning of surgical intervention is necessary to perform a saving operation without organ resections and vascular prosthetics. Primary qualitative histological examination is very important for monitoring the dynamics and prompt diagnosis of relapse.