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- 저자 : Alessio Imperiale (검색결과 2 건)
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Hyperfunctioning Intrathyroidal Parathyroid: a Misleading Preoperative Diagnosis
Josefina Carullo,Jacob Bani,Gerlinde Averous,Mehdi Helali,Celine Heimburger,Michel Vix,Alessio Imperiale 대한핵의학회 2023 핵의학 분자영상 Vol.57 No.1
Hyperfunctioning parathyroid glands may be rarely located in the thyroidal parenchyma and not identified by imagingor during surgical procedures. We present three patients with primary hyperparathyroidism related to hyperfunctioningintrathyroidal parathyroid retrospectively selected among 732 cases from own Institutional parathyroid PET/CT registryfrom 2018 to 2022. Intrathyroidal parathyroids showed intense 18F-fluorocholine uptake but a variable echographic pattern,inconstant 99mTc-MIBI uptake, and atypic iodine-contrast enhancement. Although rare, the possibility of an intrathyroidalparathyroid should be considered when no hyperfunctioning gland is found on preoperative imaging and thorough bilateralneck exploration.
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Nastassja Muller,Romain Kessler,Sophie Caillard,Eric Epailly,Fabrice Hubelé,Céline Heimburger,Izzie-Jacques Namer,Raoul Herbrecht,Cyrille Blondet,Alessio Imperiale 대한핵의학회 2017 핵의학 분자영상 Vol.51 No.1
Purpose Infection and malignancy represent two common complications after solid organ transplantation, which are often characterized by poorly specific clinical symptomatology. Herein, we have evaluated the role of 18F-fluoro-2-deoxy-Dglucose (FDG) positron emission tomography/computed tomography (PET/CT) in this clinical setting. Methods Fifty-eight consecutive patients who underwent FDG PET/CT after kidney, lung or heart transplantation were included in this retrospective analysis. Twelve patients underwent FDGPET/CT to strengthen or confirma diagnostic suspicion of malignancies. The remaining 46 patients presented with unexplained inflammatory syndrome, fever of unknown origin (FUO), CMVor EBV seroconversion during post-transplant follow-up without conclusive conventional imaging. FDG PET/CT results were compared to histology or to the finding obtained during a clinical/imaging follow-up period of at least 6 months after PET/CT study. Results Positive FDG PET/CT results were obtained in 18 (31 %) patients. In the remaining 40 (69 %) cases, FDG PET/CT was negative, showing exclusively a physiological radiotracer distribution. On the basis of a patient-based analysis, FDG PET/CT’s sensitivity, specificity, PPV and NPV were respectively 78 %, 90 %, 78 % and 90 %, with a global accuracy of 86 %. FDG PET/CT was true positive in 14 patients with bacterial pneumonias (n = 4), pulmonary fungal infection (n = 1), histoplasmosis (n = 1), cutaneous abscess (n = 1), inflammatory disorder (sacroiliitis) (n = 1), lymphoma (n = 3) and NSCLC (n = 3). On the other hand, FDG PET/CT failed to detect lung bronchoalveolar adenocarcinoma, septicemia, endocarditis and graft-versus-host disease (GVHD), respectively, in four patients. FDG PET/CT contributed to adjusting the patient therapeutic strategy in 40 % of cases. Conclusions FDG PET/CT emerges as a valuable technique to manage complications in the post-transplantation period. FDG PET/CT should be considered in patients with severe unexplained inflammatory syndrome or FUO and inconclusive conventional imaging or to discriminate active from silent lesions previously detected by conventional imaging particularly when malignancy is suspected.
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