ABSTRACT
Positron emission tomography with 2-((18)F)-fluoro- 2-deoxy-D-glucose (FDG-PET) is a metabolic imaging technique. FDG-PET is more accurate than CT for the evaluation of mediastinal involvement in patients with nonsmall- cell lung cancer, offering a high negative predictive value. It can detect occult metastases in 11% of patients, although the etiology of the extrathoracic isolated uptakes needs confirmation. Theoretically, FDG-PET can influence the planning volume for radiotherapy, primarily in patients with atelectasis. Quantification of metabolic activity using FDG-PET is influenced by the size of the lesion, glucose levels and the time elapsed since the isotope injection. More clinical trials are required to standardize the methods for performing PET, assess its use as a prognostic factor and for the evaluation of treatment response.
Subject(s)
Carcinoma, Non-Small-Cell Lung/pathology , Fluorodeoxyglucose F18 , Lung Neoplasms/pathology , Positron-Emission Tomography , Radiopharmaceuticals , Tomography, X-Ray Computed , Carcinoma, Non-Small-Cell Lung/diagnostic imaging , Clinical Trials as Topic , Humans , Lung Neoplasms/diagnostic imaging , Lymphatic Metastasis , Neoplasm StagingABSTRACT
We report a primary lymphoma of the prostate, which arose in a 29-year-old man with hematuria. Pathological evaluation of tissue fragments allowed us to choose appropriate medical management. A diagnosis of suspicion can be performed by urine cytology, and molecular techniques may be helpful. Emphasis in differential diagnosis is made.
Subject(s)
Lymphoma, B-Cell/pathology , Lymphoma, Large B-Cell, Diffuse/pathology , Prostatic Neoplasms/pathology , Adult , Humans , Lymphoma, B-Cell/drug therapy , Lymphoma, Large B-Cell, Diffuse/drug therapy , Male , Prostatic Neoplasms/drug therapyABSTRACT
We report a primary lymphoma of the prostate, which arose in a 29-year-old man with hematuria. Pathological evaluation of tissue fragments allowed us to choose appropriate medical management. A diagnosis of suspicion can be performed by urine cytology, and molecular techniques may be helpful. Emphasis in differential diagnosis is made.