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Diffuse malignant peritoneal mesothelioma (DMPM) is a rare and aggressive subtype of epithelioid mesothelioma that arises from the lining of the abdominal cavity. While the applications of traditional fluorine-18 fluorodeoxyglucose ( F-FDG) positron emission tomography/computed tomography (PET/CT) in diagnosis and staging of DMPM are well-established, the utility of gallium-68 fibroblast activating protein inhibitor ( Ga-FAPI) PET/CT in detecting disease recurrence remains an area that requires further research and validation, with limited literature. Implementing FAPI PET/CT for these cases may provide superior lesion detectability and higher reporter confidence, prompting the need for further studies to investigate the potential future role of FAPI theranostics in guiding treatment decisions for DMPM. This case report describes a 49-year-old male patient diagnosed with DMPM, who underwent cytoreductive surgery and hyperthermic intraperitoneal chemotherapy but developed recurrent disease that was better visualized on Ga-FAPI PET/CT compared with F-FDG PET/CT.
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http://dx.doi.org/10.1055/s-0045-1805043 | DOI Listing |
Rev Esp Med Nucl Imagen Mol (Engl Ed)
September 2025
Servicio de Medicina Nuclear, Clínica Universidad de Navarra, Madrid, Spain; Grupo de Trabajo de Oncología de la SEMNIM, Spain.
Breast cancer is one of the most prevalent neoplasms worldwide, with molecular subtypes that influence prognosis and therapeutic strategies. PET/CT with different radiopharmaceuticals has revolutionized diagnosis, staging, and treatment monitoring. [F]-Fluorodeoxyglucose remains the most widely used radiotracer, but it has limitations in certain subtypes, such as invasive lobular carcinoma, where 16α-[F] fluoro-17β-estradiol and [Ga]-FAPI (fibroblast activation protein inhibitors) have demonstrated greater utility.
View Article and Find Full Text PDFQuant Imaging Med Surg
September 2025
Department of Nuclear Medicine, Institute of Traditional Chinese Medicine of Sichuan Academy of Chinese Medicine Sciences (Sichuan Second Hospital of Traditional Chinese Medicine), Chengdu, China.
Background: Bone metastases of lung cancer typically indicate disease progression and poor prognosis. Early and accurate detection is crucial for staging, treatment planning, and prognostic evaluation. This study aimed to compare the diagnostic value of gallium 68-labeled fibroblast-activation protein inhibitor-04 ([Ga]Ga-FAPI-04) and fluorine 18-labeled fluorodeoxyglucose ([F]FDG) positron-emission tomography/computed tomography (PET/CT) imaging in detecting bone metastases in lung cancer.
View Article and Find Full Text PDFAcad Radiol
August 2025
Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, CH‑1211 Geneva, Switzerland (H.S., A.S., Y.S., C.E.D., C.I., H.Z.); Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, Netherlands
Background: Reducing PET scan acquisition time to minimize motion-related artifacts and improving patient comfort is always demanding. This study proposes a deep-learning framework for synthesizing diagnostic-quality PET images from ultrafast scans in multi-tracer total-body PET imaging.
Methods: A retrospective analysis was conducted on clinical uEXPLORER PET/CT datasets from a single institution, including [F]FDG (N=50), [F]FAPI (N=45) and [Ga]FAPI (N=60) studies.
EJNMMI Radiopharm Chem
August 2025
Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.
Background: The precise differentiation of recurrent glioma from treatment-related changes, such as pseudoprogression or radiation necrosis, is essential for treatment planning and remains a significant challenge. Fibroblast activation protein (FAP) expressed by cancer-associated fibroblasts can be targeted with PET tracers for in vivo visualization and quantification. This study aims to evaluate the diagnostic and prognostic effectiveness of FAP expression in patients with potential recurrent glioma by directly comparing [gallium-68] FAP inhibitor-04 and [fluorine-18] fluoroethyl-L-tyrosine PET/CT imaging.
View Article and Find Full Text PDFFront Med (Lausanne)
July 2025
Department of Nephrology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.
Renal fibrosis is the central pathological pathway by which various primary and secondary kidney diseases progress to end-stage renal disease. It is characterized by excessive extracellular matrix deposition and destruction of the native renal parenchyma, ultimately leading to irreversible loss of nephrons. Currently, percutaneous renal biopsy with histopathological evaluation remains the diagnostic gold standard for renal fibrosis, allowing semiquantitative scoring of renal interstitial fibrosis and glomerulosclerosis (e.
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