LIPOSARCOMA RETROPERITONEAL GIGANTE A PROPÓSITO DE UN CASO

Abstract

OBJECTIVE: To present a rare case, description of the case and literature review. Primary retroperitoneal tumors represent a rare group of cancers that develop from mesenchymal tissues. 80 % are malignant lesions, mostly are sarcomas. Soft tissue sarcomas accounts less than 1 % of malignant tumors and retroperitoneal location is less than 15 %. The treatment is surgery, performing resection of the tumor as a block with other organs and structures affected. CASE REPORT: Patient male 43 years old with growth of abdominal circumference of 8 months duration, weight loss and change evacuator pattern, at physical examination presents globose abdomen for palpable lesion around the abdomen, the rectal examination confirm the presence of extrinsic compression on straight. The abdominal ultrasound and the tomography evidenced large occupied space lesion no other abnormalities were present. The colonoscopy confirms the extrinsic compression. It is taken to surgery procedure and showing: 45 cm x 35 cm x 16 cm retroperitoneal tumor which displaces the colon and thin handles. The complete resection is performed without visceral resection. The definitive biopsy concludes as a myxoid liposarcoma, peri-tumoral tissue with no evidence of disease. CONCLUSION: The retroperitoneal liposarcoma are a group of rare tumors whose diagnosis and treatment represent a challenge, because of their behavior, location and the relationship to the vital structures of great importance. The treatment is the surgical and success depends on the ability of R0 resection.