Resumen

LOPEZ, Patricia; VERGEL-MARTINEZ, Juan Carlos; GUZMAN, Luis  y  LEHMANN, Carlos. High grade osteosarcoma originated in a malignant phyllodes tumor. rev.colomb.cancerol. [online]. 2019, vol.23, n.4, pp.152-157. ISSN 0123-9015.  https://doi.org/10.35509/01239015.116.

Malignant phyllodes tumor with osteosarcomatous differentiation has a very low incidence. The assessment of this tumor has become a challenge for current medicine due to its difficult histopathological, imaging and clinical diagnosis.

The main treatment is based on surgical management, and the options of adjuvant therapy have not yet presented a solid evidence for its use as standard of care. Its prognosis is not good. The osteoblastic subtype, especially, has a very aggressive behavior, with a risk of 38 % for metastatic compromise and risk of death due to pathology of 33 %.

We present the case of a patient and describe how the disease was diagnosed and treated.

Palabras clave : Phyllodes tumor; Osteosarcoma; Surgery; Chemotherapy.

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