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Vol. 56. Issue 5.
Pages 462-465 (1 May 2002)
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Vol. 56. Issue 5.
Pages 462-465 (1 May 2002)
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Osteosarcoma metástasis cerebral
Osteosarcoma and brain metastasis
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Ma.E. Mateos Gonzáleza,
Corresponding author
med020053@saludalia.com

Correspondencia: C.S. Abrantes. Avda. de Abrantes, 55-57. 28025 Madrid.
, E. López-Lasob, C. Garrido Colinoa, M.aJ. Torres Valdiviesoa, J. López Péreza, R. Simón de las Herasb
a Unidad de Hematología-Oncología Pediátrica. Hospital 12 de Octubre. Madrid.
b Unidad de Neurología Infantil. Departamento de Pediatría. Hospital 12 de Octubre. Madrid.
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La introducción del tratamiento multimodal ha supuesto una prolongación de la supervivencia, tanto de los pacientes con osteosarcoma globalmente como del subgrupo con tumores más agresivos, lo cual se ha asociado a un cambio en los patrones de metástasis. Tradicionalmente, las metástasis cerebrales constituían una rareza, aunque en los últimos años se ha observado un incremento en su incidencia.

Se describen dos niñas con osteosarcoma osteoblástico de fémur cuya respuesta a la quimioterapia preoperatoria había sido escasa. Ambas presentaron metástasis cerebrales a la vez o tras el desarrollo de metástasis pulmonares. Clínicamente se manifestaron con síntomas de hipertensión intracraneal en una paciente; con una crisis parcial compleja en el otro caso.

Consideramos que los pacientes con metástasis al diagnóstico, los que recidiven durante el primer año del diagnóstico y aquellos con una respuesta histológica escasa a la quimioterapia prequirúrgica deben ser examinados de forma periódica clínica y radiológicamente para descartar afectación cerebral.

Palabras clave:
Osteosarcoma
Osteosarcoma osteoblástico
Osteosarcoma metastásico
Metástasis cerebrales
Oncología pediátrica
Introduction

Since the advent of multimodal therapy, survival among patients with osteosarcoma in general and among those with aggressive tumors has improved. Consequently, the pattern of relapse is also changing. Brain metastasis is considered to be a rare event in osteosarcoma, although recent reports suggest that the incidence of this complication may be increasing.

Case report

We report two girls with osteoblastic osteosarcoma of the femur with poor response to preoperative chemotherapy. Both patients developed brain metastasis concurrent with or after the development of lung metastasis. Clinical manifestations of brain metastasis were symptoms of intracranial hypertension in one patient, and a complex partial seizure in the other.

Discussion

We advocate periodic neurologic examination and neuroradiologic screening for the early detection of brain involvement in patients whose disease recurs within 1 year of diagnosis, in those with metastasis at diagnosis and in those with a poor histologic response to preoperative chemotherapy.

Key words:
Osteosarcoma
Osteoblastic osteosarcoma
Metastatic osteosarcoma
Brain metastasis
Pediatric oncology
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