RESUMEN
A patient was admitted to the hospital with acute chest pain. After acute myocardial infarction was ruled out, he underwent a stress thallium 201 scintigraphy using oral dipyridamole and developed persistent angina with ST-segment elevation. This complication has not been reported previously. It is recommended that appropriate intervention be available if severe ischemia develops following administration of dipyridamole for diagnostic imaging.
Asunto(s)
Angina de Pecho/inducido químicamente , Dipiridamol/efectos adversos , Corazón/diagnóstico por imagen , Radioisótopos de Talio , Angina de Pecho/diagnóstico por imagen , Electrocardiografía , Prueba de Esfuerzo , Humanos , Masculino , Persona de Mediana Edad , CintigrafíaRESUMEN
Isolated scintigraphic sternal lesions are rare. In a retrospective review of the bone scan results of 1,104 patients with breast cancer, 34 individuals (3.1%) presented with this abnormality. Of these foci, 26 (76%) were found to represent metastatic disease. There did not appear to be a relationship with axillary lymph node metastasis, the quadrant involved by primary breast tumor, or selected serum chemistries. These sternal lesions may be associated with regional lymphatic tumor spread rather than hematogenous seeding and therefore could be considered a local recurrence.