RESUMEN
Charcoal can be used for preoperative localization of metastatic lymph nodes in the neck. Charcoal remains stable without causing foreign body reactions during as hort period. However, foreign body reactions may develop if charcoal is left in situ for more than 6 months. We reported a case of charcoal granuloma mimicking local recurrence on fluorodeoxyglucose-positron emission tomography/computed tomography and ultrasonography in a 47-year-old woman who had cervical lymph node dissection due to metastatic invasive ductal carcinoma of the breast.
Asunto(s)
Femenino , Humanos , Persona de Mediana Edad , Neoplasias de la Mama/patología , Carcinoma/patología , Cuello del Útero/patología , Carbón Orgánico/toxicidad , Fluorodesoxiglucosa F18 , Granuloma/diagnóstico , Ganglios Linfáticos/cirugía , Metástasis Linfática , Recurrencia Local de Neoplasia , Tomografía de Emisión de Positrones , Radiofármacos , Tomografía Computarizada por Rayos XRESUMEN
F-18 FDG-PET/CT could be used to evaluate the surveillance of recurrent stomach cancer, but some cases reported as false-positives. The authors found an activated charcoal granuloma from intraperitoneal chemotherapy by using a curative resection and mitomycin C for stomach cancer. A mass behind the right colon that showed on CT 6 months after an operation in a 46-year-old male patient had no progression in size, but 36 months after the operation, an increase was seen on F-18 FDG-PET/CT, and a metastatic tumor was suspected. The tumor was resected by an explorative laparotomy and was diagnosed as being an activated charcoal granuloma based on the histologic finding. Based on this case, we should be reminded of the possibility of a false-positive on analysis of F-18 FDG-PET/CT caused by an activated charcoal granuloma in a patient who has intraperitoneal chemotherapy.