RESUMEN
Primary malignant rhabdoid tumor (PMRT) of the brain is a rare and recently described neoplasm of youth. We report magnetic resonance imaging (MRI), computed tomography (CT), and pathology of one case of PMRT in an adult which seeded along the needle track for stereotactic biopsy.
Asunto(s)
Biopsia con Aguja/efectos adversos , Neoplasias Encefálicas/patología , Siembra Neoplásica , Tumor Rabdoide/secundario , Adulto , Encéfalo/diagnóstico por imagen , Encéfalo/patología , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/diagnóstico por imagen , Humanos , Imagen por Resonancia Magnética , Masculino , Tumor Rabdoide/diagnóstico , Tumor Rabdoide/diagnóstico por imagen , Técnicas Estereotáxicas , Tomografía Computarizada por Rayos XRESUMEN
Platypnea-orthodeoxia is encountered in a variety of cardiac, pulmonary, and hepatic disorders. We report its occurrence in a 59-year-old man who had had combined external-beam and high dose-rate iridium brachytherapy for a stage I non-small-cell carcinoma of the right upper lobe 2 years earlier. The post-radiation course was complicated by a severe radiation bronchitis; the onset of platypnea-orthodeoxia signalled the development of severe bronchial stenosis that was transiently relieved, initially by dilatation, and later by stent placement, though the patient ultimately died of a pulmonary hemorrhage. The dosage of brachytherapy given, the combined external-beam therapy, and the long survival after completion of radiation therapy were likely factors in the development of bronchial stenosis. We discuss the tomographic and bronchoscopic features of radiation-induced bronchial stenosis.