A 31-year-old woman with a history of papillary thyroid cancer underwent ablative 131I therapy. Posttherapeutic whole-body 131I scintigraphy revealed abnormally increased activity in the neck. Additional SPECT/CT images localized the activity in the bilateral peripheral fascia of the platysma.
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http://dx.doi.org/10.1097/RLU.0000000000004631 | DOI Listing |
Sci Rep
January 2025
Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
Distinguishing between Parkinson's disease (PD) and essential tremor (ET) can be challenging sometimes. Although positron emission tomography can confirm PD diagnosis, its application is limited by high cost and exposure to radioactive isotopes. Patients with PD exhibit loss of the dorsal nigral hyperintensity on brain magnetic resonance imaging (MRI).
View Article and Find Full Text PDFAACE Clin Case Rep
July 2024
Department of Medicine, Queen's University, Kingston, Ontario, Canada.
Background/objective: Non-metastatic radioactive iodine (RAI) uptake can complicate the interpretation of whole-body scan (WBS) for differentiated thyroid carcinoma (DTC) post-thyroidectomy. We present a patient with DTC whose follow-up WBS showed nonmetastatic multifocal avidity in skeletal tissue, an uncommonly reported site of RAI uptake.
Case Report: A 42-year-old woman underwent a right hemithyroidectomy, followed by completion thyroidectomy and RAI remnant ablation therapy, for a 4.
Indian J Nucl Med
August 2024
Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
A 25-year-old woman with a known case of papillary thyroid carcinoma conventional type referred to our center for treatment with radioactive iodine after total thyroidectomy. She received 200 mCi of radioiodine, and in the whole-body scan 1 week after the radioiodine therapy, an area of increased absorption was seen on the right side of the pelvis, which was diagnosed as an endometriotic ovarian cyst in the follow-up examinations.
View Article and Find Full Text PDFClin Nucl Med
September 2024
Oncologic and Molecular Imaging, Department of Radiology, UMass Chan Medical School, Worcester, MA.
Prostate-specific membrane antigen (PSMA) PET/CT has become an unparalleled modality in the diagnosis of primary and recurrent prostatic adenocarcinoma, often revealing sites of disease that were previously invisible on conventional imaging. In this 78-year-old man with suspected prostate cancer recurrence, PSMA PET/CT revealed focal radiotracer uptake in the brain, which would ordinarily raise suspicion for metastases, but was a false positive in the setting of a recent stroke. Increased PSMA uptake has been reported in subacute infarcts and primary and secondary brain tumors.
View Article and Find Full Text PDFClin Nucl Med
September 2024
From the Centre Léon Bérard, Lyon, France.
Collateral circulation is often secondary to a regional thrombosis. This phenomenon can lead to the detection of misleading bone lesions on imaging and is a well-known source of false-positives. Here, we present 2 different tracers PET/CT images, 18 F-FDG and 18 F-choline, with collateral circulation but without obvious thrombosis.
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