[Retroperitoneal tumors. Retroperitoneal myxoid liposarcoma. Report of a new case].
OBJECTIVE
To describe an additional case of a large retroperitoneal liposarcoma.


RESULTS
A case of a large retroperitoneal liposarcoma in a young male is presented. Treatment was by surgery. The clinical and pathological features, diagnosis, course and treatment of this lesion are discussed.


CONCLUSIONS
Retroperitoneal tumors constitute a heterogeneous group of uncommon neoplasms of unknown etiology. Liposarcoma is the most frequent lesion in this group. It is usually asymptomatic and is often identified by the presence of a large abdominal mass. It is considered to be a peculiar lesion because of its biological and morphological features and course.
Azpiazu Arnaiz
P
P
Servicio de Cirugía General, Hospital de Guipuzcoa, San Sebastián, España.
Muro Bidaurre
I
I
De Frutos Gamero
A
A
Castro Esnal
E
E
Martín López
A
A
Asensio Gallego
J I
JI
Ribera Garbayo
J R
JR
D000293:Adolescent; D006801:Humans; D018208:Liposarcoma, Myxoid / Q000175:diagnosis*; D008297:Male; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*