Resumen

GIOBELY, Gil et al. Liposarcoma mixoide retroperitoneal, reporte de un caso. Gen [online]. 2008, vol.62, n.4, pp.315-317. ISSN 0016-3503.

Retroperitoneal tumors are of a great histologic variety, depending mostly on the organ of origin. They are generally malignant and of mesenquimal origin. They represent 0.3 to 0.8% of all neoplasias. Liposarcoma is the most frecuently found among all sarcomas in all locations in 25 to 35%. We present the case of a 31 year old female patient who consulted presenting an increase of her abdominal volume, with right upper quadrant abdominal pain in radiated to her back. Complementary studies reported a giant retroperitoneal tumor displacing other retroperitoneales and abdominal organs. An ultrasoun guided tru-cut sample was taken that reported myxoid liposarcoma. Surgical removal of the tumor and adjuvant treatment was given to the patient. Nevertheless 2 and 4 years later the tumor reappeared requiring further surgical removal. Unfavorable clinical outcome followed , presenting pleural effusionl, ascitic fluid, deep venous thrombosis and sepsis leading to her death. This unfrequent and aggressive entity must be acknoledged and multidisciplinary handled.

Palabras clave : retroperitoneales tumors,myxoid liposarcoma; ultrasound-guided biopsy.