18F-Fluorodeoxyglucose (FDG) PET-CT is an excellent imaging modality for the evaluation of Non-Hodgkin lymphoma. We report a case of 65-year-old man with haematuria; rectal examination and ultrasonography revealed prostate mass. Staging 18F-FDG PET-CT images showed a large hypermetabolic, infiltrative prostate mass. Subsequent contrast enhanced CT images showed ill-defined heterogeneously enhancing fungiform mass with irregular outline involving the prostate, base of urinary bladder as well as the seminal vesicles. Biopsy showed diffuse large B cell lymphoma. 18F-FDG PET-CT is helpful in evaluation of disease extent and therapy response.
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Abdom Radiol (NY)
January 2025
Department of Nuclear Medicine, The Fourth Hospital of Hebei Medical University, 12 Jiankang Road, Shijiazhuang, 050011, Hebei, China.
Purpose: The study aimed to compare the diagnostic accuracy of Ga-DOTA-FAPI-04 (Ga-FAPI) and F-FDG PET/CT for peritoneal carcinomatosis (PC) in patients with various types of cancer.
Methods: The study enrolled 113 patients with suspected peritoneal malignancy, each of whom underwent Ga-FAPI and F-FDG PET/CT scans. Lesions in all patients were confirmed through pathology or radiological follow-up.
Alzheimers Dement
December 2024
Hospital de Clínicas, Montevideo, Montevideo, Uruguay.
Background: The prevalence of Dementia in Latin America countries is growing and early presentations of Alzheimer´s Diseases with atypical forms are even more frequently. As the clinical presentation of these variants shows an overlap with other dementia disorders, the differential diagnosis is often challenging. We presented three cases of atypical forms of AD who count with cognitive assessment and pet imaging confirmation in order to being able to discuss the most important points of clinical assessment in every case.
View Article and Find Full Text PDFCureus
December 2024
Department of Emergency and Intensive Care Medicine, Hospital of the University of Occupational and Environmental Health, Fukuoka, JPN.
Objectives The objective of this study was to evaluate the occupational radiation exposure of healthcare workers during positron emission tomography (PET)/CT examinations, focusing on patient positioning and assessing the effectiveness of different radiation protection measures. Methods Thirteen medical workers (physicians, radiological technologists, and nurses) performed PET/CT examinations on 86 patients at a major Japanese hospital from June to August 2019. Occupational doses were measured using a real-time semiconductor dosimeter: RaySafe i2 (Unfors RaySafe, Billdal, Sweden), recording the 1 cm dose equivalent (Hp(10)).
View Article and Find Full Text PDFBMC Infect Dis
January 2025
Department of Radiation Oncology, Cancer Treatment Center, The Second Affiliated Hospital of Hainan Medical University, 368 Yehai Road, Haikou, 570311, China.
Background: Esophageal ulcers can arise not only from malignant lesions but also from benign diseases, such as tuberculosis. These ulcers may mimic the radiological features of esophageal malignancy or tuberculosis on PET/CT, leading to diagnostic challenges.
Case Presentation: A 59-year-old woman was admitted to our hospital with a month-long history of progressive painful swallowing, fatigue, and loss of appetite.
Eur Radiol
January 2025
Department of Radiology, NYU Grossman School of Medicine, New York, USA.
Imaging is used for lymphoma detection, Ann Arbor/Lugano staging, and treatment response assessment. [F]FDG PET/CT should be used for most lymphomas, including Hodgkin lymphoma, aggressive/high-grade Non-Hodgkin lymphomas (NHL) such as diffuse large B-cell lymphoma, and many indolent/low-grade NHLs such as follicular lymphoma. Apart from these routinely FDG-avid lymphomas, some indolent NHLs, such as marginal zone lymphoma, are variably FDG-avid; here, [F]FDG PET/CT is an alternative to contrast-enhanced CT at baseline and may be used for treatment response assessment if the lymphoma was FDG-avid at baseline.
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