RESUMO
A highly F-18 fluorodeoxyglucose-avid lung nodule was stable in both size and metabolic activity over 4 months. This was most likely nonneoplastic because a true tumor would grown in volume overtime. The high level of energy consumption was contributing functional activities or by inflammatory cells. Because the speed of tumor growth is proportional to its energy consumption, we consider the higher the metabolic activity of a lesion, the less likely of malignant if it was stable in size over time.
Assuntos
Fluordesoxiglucose F18 , Granuloma/diagnóstico , Neoplasias Pulmonares/diagnóstico , Tomografia por Emissão de Pósitrons/métodos , Compostos Radiofarmacêuticos , Tomografia Computadorizada por Raios X/métodos , Biópsia , Diagnóstico Diferencial , Reações Falso-Positivas , Fluordesoxiglucose F18/farmacocinética , Seguimentos , Células Gigantes de Corpo Estranho/diagnóstico por imagem , Células Gigantes de Corpo Estranho/metabolismo , Células Gigantes de Corpo Estranho/patologia , Granuloma/metabolismo , Granuloma/patologia , Humanos , Pulmão/diagnóstico por imagem , Pulmão/metabolismo , Pulmão/patologia , Pneumopatias/diagnóstico , Pneumopatias/metabolismo , Pneumopatias/patologia , Masculino , Pessoa de Meia-Idade , Compostos Radiofarmacêuticos/farmacocinéticaAssuntos
Adenocarcinoma/diagnóstico por imagem , Implantes de Mama/efeitos adversos , Neoplasias da Mama/diagnóstico por imagem , Géis de Silicone/efeitos adversos , Adenocarcinoma/cirurgia , Implante Mamário , Neoplasias da Mama/cirurgia , Remoção de Dispositivo , Feminino , Células Gigantes de Corpo Estranho/diagnóstico por imagem , Humanos , Pessoa de Meia-Idade , Tomografia por Emissão de Pósitrons , Tomografia Computadorizada por Raios XRESUMO
BACKGROUND: Carbon marking of the biopsy site and needle track following stereotactic breast biopsy in nonpalpable mammography-detected lesions provides for safe and accurate localization for subsequent surgical excision. No significant complications of carbon marking have been reported to date. PURPOSE: To report follow-up imaging findings and histological changes (foreign-body giant-cell reaction) attributable to the use of carbon marking after vacuum breast biopsies. MATERIAL AND METHODS: This was a retrospective study of 130 patients in a mammographic screening program with nonpalpable suspicious breast lesions that were referred for stereotactic directional vacuum-assisted breast biopsy with carbon marking. Histological diagnosis was benign in all cases, but 1-year follow-up mammograms demonstrated suspect findings in four of them. RESULTS: For all four patients, the results of the initial stereotactic vacuum-assisted biopsy were benign, but mammographic follow-up and ultrasound findings revealed suspicious changes that, in all cases, were histologically shown to be foreign-body giant-cell reactions attributable to the use of carbon. CONCLUSION: In four of 130 lesions (3%) that were carbon marked following stereotactic vacuum-assisted breast biopsy, and in which surgical excision was not required, the mammographic and ultrasound follow-up appearance of the breast simulated malignancy. The abnormality was attributable to the use of carbon, which represents a potential source of misdiagnosis.
