ABSTRACT
No disponible
Subject(s)
Female , Aged , Humans , 3-Iodobenzylguanidine , Tomography, Emission-Computed, Single-Photon/methods , Thyroid Neoplasms , Adenocarcinoma, Follicular , GallbladderSubject(s)
Carcinoma/diagnostic imaging , Neoplasms, Unknown Primary/diagnostic imaging , Positron-Emission Tomography , Tonsillar Neoplasms/diagnostic imaging , Adult , Carcinoma/secondary , Carcinoma/surgery , Fluorodeoxyglucose F18 , Humans , Lymphatic Metastasis , Male , Radiopharmaceuticals , Tonsillar Neoplasms/pathology , Tonsillar Neoplasms/surgery , TonsillectomyABSTRACT
No disponible
Subject(s)
Male , Adult , Humans , Tonsillar Neoplasms/diagnosis , Tonsillar Neoplasms/surgery , Tomography, X-Ray Computed/methods , Magnetic Resonance Imaging , ElectronsSubject(s)
Basal Ganglia/diagnostic imaging , Fluorodeoxyglucose F18 , Pinealoma/diagnostic imaging , Pinealoma/secondary , Positron-Emission Tomography , Radiopharmaceuticals , Supratentorial Neoplasms/diagnostic imaging , Supratentorial Neoplasms/secondary , Temporal Lobe/diagnostic imaging , Basal Ganglia/metabolism , Child , Combined Modality Therapy , Fluorodeoxyglucose F18/pharmacokinetics , Humans , Male , Neoplasm Recurrence, Local/diagnostic imaging , Palliative Care , Pinealoma/drug therapy , Pinealoma/pathology , Pinealoma/radiotherapy , Radiopharmaceuticals/pharmacokinetics , Supratentorial Neoplasms/radiotherapy , Temporal Lobe/metabolismABSTRACT
No disponible
Subject(s)
Male , Child , Humans , Pinealoma/diagnosis , Pineal Gland , Radiopharmaceuticals , Neoplasm Recurrence, Local , Brain Neoplasms/diagnosis , Pinealoma , Pineal Gland , Magnetic Resonance Imaging , Tomography, Emission-Computed , Brain NeoplasmsABSTRACT
Patients with known tumors can have other tumors in unexpected places, the so-called synchronic or second primary cancers. In these patients, whole-body fluorodeoxyglucose positron emission tomography (FDG-PET) to study known tumors can identify other tumors that would escape notice if only the sites of known tumors were investigated. We present 3 patients in whom whole-body FDG-PET was requested to study known tumors: 2 lung cancers and one melanoma. FDG-PET localized the known lesions and revealed hypermetabolic uptake in the abdomen in all 3 patients. Endoscopic polypectomy and pathologic analysis were performed, revealing 2 colon cancers and a tubular adenoma with a high degree of focal atypia. Whole body FDG-PET is a highly useful technique in the early diagnosis of colorectal cancer, which in turn allows complete cure of patients with this disease.
Subject(s)
Colonic Neoplasms/diagnostic imaging , Neoplasms, Second Primary/diagnostic imaging , Positron-Emission Tomography , Adenocarcinoma/diagnostic imaging , Adenoma/diagnostic imaging , Aged , Early Diagnosis , Humans , Lung Neoplasms/diagnostic imaging , Male , Melanoma/diagnostic imaging , Middle Aged , Skin Neoplasms/diagnostic imagingABSTRACT
Los pacientes con tumoraciones conocidas pueden presentar otras tumoraciones en localizaciones no esperadas, los llamados cánceres sincrónicos o segundos primarios. En tales pacientes la realización de una tomografía por emisión de positrones con fluorodesoxiglucosa (PET-FDG) de cuerpo completo para el estudio de tumoraciones conocidas nos permitirá la localización de otras tumoraciones que pasarían inadvertidas si únicamente se empleasen procedimientos diagnósticos enfocados a la zona de estudio de la enfermedad conocida. Exponemos 3 casos en los que se solicitó una PET-FDG de cuerpo completo para el estudio de tumores conocidos, 2 cánceres de pulmón y un melanoma. Estas lesiones fueron verificadas a la vez que se localizaron sendos focos de hipermetabolismo anómalo de la FDG en abdomen. Tras una posterior polipectomía por endoscopia y un estudio anatomopatológico, se concluyó que correspondían a 2 cánceres de colon y uno a adenoma tubular con atipia focal de alto grado. La PET-FDG de cuerpo completo se muestra como una técnica de imagen de gran importancia en el diagnóstico temprano del cáncer colorrectal. Al ser detectada la enfermedad en un estadio temprano, permitirá un tratamiento rápido y efectivo que logrará curaciones completas de estas patologías
Patients with known tumors can have other tumors in unexpected places, the so-called synchronic or second primary cancers. In these patients, whole-body fluorodeoxyglucose positron emission tomography (FDG-PET) to study known tumors can identify other tumors that would escape notice if only the sites of known tumors were investigated. We present 3 patients in whom whole-body FDG-PET was requested to study known tumors: 2 lung cancers and one melanoma. FDG-PET localized the known lesions and revealed hypermetabolic uptake in the abdomen in all 3 patients. Endoscopic polypectomy and pathologic analysis were performed, revealing 2 colon cancers and a tubular adenoma with a high degree of focal atypia. Whole body FDG-PET is a highly useful technique in the early diagnosis of colorectal cancer, which in turn allows complete cure of patients with this disease
Subject(s)
Humans , Tomography, Emission-Computed , Colorectal Neoplasms , Fluorodeoxyglucose F18 , Neoplasms, Second Primary/diagnosis , Neoplasms, Multiple PrimaryABSTRACT
We present a case of a 73 year old man, who lost 12 kg of weight in one month, had abdominal pain and progressive hepatic failure. A MRI and liver ultrasound were performed and, with the patient's symptoms, hepatocellular carcinoma Vs metastatic liver was suspected. A PET-FDG was performed and the images showed hepatomegaly and splenomegaly, without other findings of interest. FDG distribution in the liver was homogeneous. The patient was diagnosed of hepatocellular carcinoma after liver biopsy. FDG-PET detects only 50 % to 70 % of hepatocellular carcinomas due to varying degrees of activity of the enzyme glucose-6-phosphatase in these tumors. This paper reviews the literature on this type of situations.
Subject(s)
Carcinoma, Hepatocellular/diagnostic imaging , Liver Neoplasms/diagnostic imaging , Positron-Emission Tomography , Aged , Biopsy , Carcinoma, Hepatocellular/complications , Carcinoma, Hepatocellular/diagnosis , Carcinoma, Hepatocellular/pathology , Fluorodeoxyglucose F18 , Hepatomegaly/diagnostic imaging , Hepatomegaly/etiology , Humans , Liver Neoplasms/complications , Liver Neoplasms/diagnosis , Liver Neoplasms/pathology , Male , Radiopharmaceuticals , Splenomegaly/diagnostic imaging , Splenomegaly/etiologyABSTRACT
We present the case of 15 day old female baby, with respiratory insufficiency, asphyxia and cyanosis when fed. She was diagnosed by ultrasound of intraauricular communication ostium secundum type. Passage of the contrast to the right respiratory tract but without localization of the fistula was observed in the esophagogastric contrast study. We performed esophageal scintigraphy that showed the passage of the isotope to both lungs, showing "H" type tracheoesophageal fistula. We review the bibliography on this special kind of disease.
Subject(s)
Tracheoesophageal Fistula/congenital , Tracheoesophageal Fistula/diagnostic imaging , Female , Humans , Infant, Newborn , Radionuclide Imaging , Tracheoesophageal Fistula/classificationABSTRACT
El cáncer de mama es la neoplasia más frecuente del sexo femenino. La PET-FDG se muestra como una técnica diagnóstica de imagen avanzada en el cáncer de mama, tanto en el diagnóstico precoz en determinadas situaciones, estudio de extensión y estadificación previo a la terapia, valoración precoz de la eficacia de la quimioterapia, detección del tumor residual tras la terapia y detección de recurrencias con posterior re-evaluación de la extensión. La PET-FDG está basada en la identificación del aumento de actividad glicolítica en las células malignas. En este trabajo hacemos una revisión de los artículos publicados en la bibliografía sobre las indicaciones de la PET-FDG en el cáncer de mama (AU)