Resumen

FUENZALIDA S, Felipe et al. Thoraco-abdominal chondrosarcoma. Rev Chil Cir [online]. 2012, vol.64, n.1, pp. 72-75. ISSN 0718-4026.  http://dx.doi.org/10.4067/S0718-40262012000100012.

Chondrosarcomas represent the third primary malignant bone tumor. Costal location occurs in 12%, being the most common tumor of the ribs. It affects most frequently in the second and fifth decades of life. This tumor is histologically classified into grades 1, 2 and 3 in descending order of differentiation. For grade 2, with oncologic resection, there is a 10-year survival of 64%, and a 10% risk for metastasis. Radiotherapy has a limited therapeutic role and chemotherapy has not shown benefits. We report a case of a 45 years old woman, who presented with a symptomatic growing mass in the right rib cage, of three months of evolution, whose evaluation by magnetic resonance imaging and computed tomography shows a sarcomatous tumor with involvement of ribs, muscles, diaphragm, pleura, peritoneum and liver. A small amount of intraperitoneal free fluid was observed. A block resection was made, resulting a 16.8 cm long at the widest point chondrosarcoma, grade 2, with involvement of all layers of the wall, tumor microfoci in the liver capsule and malignant tumor cells in peritoneal fluid.

Palabras llave : Chondrosarcoma; rib; histological grading.