RESUMO
We report a 74-year-old male with liver metastases from a neuroendocrine tumor (NET) of unknown origin. Conventional imaging studies with ultrasound, computed tomography colonoscopy and Positron emission tomography-computed tomography (PET/CT) with 18Fluor odeoxyglucose did not identify the site of origin of the primary tumor. The patient was submitted for a PET/CT scan with a new radiopharmaceuticai, the somatostatin analogue 68Ga-DOTATATE. This new technique demonstrated increased focal uptake at the ileocecal valve. This lesion and other two liver metastases were surgically removed. The histopathology and immunohistochemistry analysis confirmed the diagnosis of NET (carcinoid). This case illustrates the advantages of the PET/CT scan with 68Ga-DOTATATE.
Assuntos
Neoplasias do Íleo , Valva Ileocecal , Tumores Neuroendócrinos , Compostos Organometálicos , Idoso , Humanos , Neoplasias do Íleo/diagnóstico por imagem , Valva Ileocecal/diagnóstico por imagem , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/secundário , Masculino , Tumores Neuroendócrinos/diagnóstico por imagem , Tomografia por Emissão de Pósitrons/métodos , Tomografia Computadorizada por Raios X/métodosRESUMO
We report a 74-year-old maie with liver metastases from a neuroendocrine tumor (NET) of unknown origin. Conventionai imaging studies with ultrasound, computed tomography coionoscopy and Positron emission tomography-computed tomography (PET/CT) with 18Flúor odeoxyglucose did not identify the site of orígin of the primary tumor. The patient was submitted for a PET/CT sean with a new radiopharmaceuticai, the somatostatin anaiogue 68Ga-DOTATATE. This new technique demostrated increased focal uptake at the ileocecal valve. This lesión and other two liver metastases were surgically removed. The histopathology and immunohistochemistry analysis confirmed the diagnosis of NET (carcinoid). This case illustrates the advantages of the PET/CT sean with 68Ga-DOTATATE.
