RESUMO
ABSTRACT: A 47-year-old man with a history of metastatic non-clear cell left renal cell carcinoma, unclassified subtype, status post left radical nephrectomy 4 years prior, and treated with immunotherapy for approximately 2½ years, presented for 18 F-FDG PET/CT exam 7 months after immunotherapy was stopped. A contrast-enhanced CT exam performed 3 weeks prior demonstrated a new small bowel intussusception in the left upper quadrant. The PET/CT demonstrated focal FDG uptake in the segment of small bowel involved in the intussusception. Pathology from small bowel resection demonstrated metastatic renal cell carcinoma.
Assuntos
Carcinoma de Células Renais , Fluordesoxiglucose F18 , Intussuscepção , Neoplasias Renais , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Humanos , Carcinoma de Células Renais/diagnóstico por imagem , Carcinoma de Células Renais/patologia , Masculino , Pessoa de Meia-Idade , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/patologia , Intussuscepção/diagnóstico por imagem , Tomografia Computadorizada por Raios XRESUMO
ABSTRACT: An 83-year-old man with multiple myeloma and history of coronary artery disease and ischemic cardiomyopathy experienced cardiac arrest during the 18 F-FDG PET/CT examination. The patient had not yet been treated for multiple myeloma. The PET/CT demonstrated focal FDG uptake about the left anterior descending coronary artery. Diffuse intense FDG uptake in the liver and less than normal uptake in other organs of usual FDG distribution were also present, likely due to altered hemodynamics and heart failure in the setting of an acute coronary syndrome.