Clinical Nuclear Medicine最新文献

{"title":"Primary Squamous Cell Carcinoma of the Breast With 18 F-FDG PET/CT.","authors":"Özge Erol Fenercioğlu, Cansu Benli Işık, Mehmet Can Baloğlu, Ediz Beyhan, Nurhan Ergül","doi":"10.1097/RLU.0000000000005506","DOIUrl":"10.1097/RLU.0000000000005506","url":null,"abstract":"<p><strong>Abstract: </strong>A 67-year-old woman presented with a palpable breast mass. A biopsy was taken, and the diagnosis was squamous cell carcinoma. Primary squamous cell carcinoma of breast is an extremely rare subtype of invasive breast cancer. The diagnosis requires ruling out metastasis of other sites and that is not skin origin. The patient was referred to 18 F-FDG PET/CT for diagnosis and staging. In this report, we present PET/CT and postsurgical pathology findings.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":"e158-e159"},"PeriodicalIF":9.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142388656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ovarian Clear Cell Adenocarcinoma With Low 68 Ga-FAPI-46 and Low 18 F-FDG Uptake on PET/CT : A Case Report.","authors":"Morten Bentestuen, Camilla Sylvest, Anna Poulsgaard Frandsen, Helle D Zacho","doi":"10.1097/RLU.0000000000005586","DOIUrl":"10.1097/RLU.0000000000005586","url":null,"abstract":"<p><strong>Abstract: </strong>A 67-year-old woman presented with a 12 × 20 × 24-cm adnexal tumor. Ultrasonography revealed an irregular, multilocular tumor, with increased flow in the solid components, and ascites-features that are consistent with ovarian cancer. The patient underwent 18 F-FDG PET/CT and 68 Ga-FAPI-46 PET/CT, both of which showed low uptake values. Histopathology confirmed ovarian clear cell adenocarcinoma (OCCC), a less common subtype that is underrepresented in FAPI PET/CT studies so far. Low 18 F-FDG uptake is a known feature of OCCC and has been previously reported; however, this case identifies OCCC as a potential pitfall in 68 Ga-FAPI-46 PET/CT.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":"e178-e179"},"PeriodicalIF":9.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Superiority of 68 Ga-Trivehexin PET/CT Over 18 F-FDG PET/CT in the Evaluation of Lymph Nodes in Patients With Breast Cancer.","authors":"Halil Kömek, Yunus Güzel, İhsan Kaplan, Ece Eşsiz Yilmaz, Canan Can","doi":"10.1097/RLU.0000000000005585","DOIUrl":"10.1097/RLU.0000000000005585","url":null,"abstract":"<p><strong>Abstract: </strong>A patient with left upper quadrant breast cancer who had 18 F-FDG PET/CT imaging underwent 68 Ga-Trivehexin PET/CT. 68 Ga-Trivehexin PET/CT showed higher radiotracer accumulation in the primary tumor, left internal mammary lymph nodes, and axillary lymph nodes compared with 18 F-FDG PET/CT. However, Trivehexin uptake was not observed in FDG-positive lymph nodes in the mediastinum and left hilar region. Benign cytological findings were noted in the biopsy of the subcarinal lymph node. This case demonstrates that the use of 68 Ga-Trivehexin PET/CT in suspicious lymph nodes in areas difficult to biopsy in breast cancer cases can contribute to accurate staging.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":"e175-e177"},"PeriodicalIF":9.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cognitive Impairment and Brain Metabolic Changes in Post-Acute Sequelae of COVID-19: Insights From an [ 18 F]FDG PET/CT Cohort Study.","authors":"Laura Rozenblum, Thomas Debroucker, Marie-Odile Habert, Marine Soret, Serge Desarnaud, Valérie Causse Lemercier, Eric Guedj, Esaie Marshall, Dominique Salmon, Aurélie Kas","doi":"10.1097/RLU.0000000000005614","DOIUrl":"10.1097/RLU.0000000000005614","url":null,"abstract":"<p><strong>Purpose: </strong>Neurological symptoms often prominent in post-acute sequelae of COVID-19 (PASC) necessitate deeper understanding. Our objective was to investigate brain metabolism in PASC and examine correlations with neurological symptoms during both the acute and chronic stages.</p><p><strong>Methods: </strong>Eighty-seven adults experiencing PASC with neurocognitive symptoms were recruited in the PERSICOR prospective study and examined using brain [ 18 F]FDG PET/CT. Comprehensive clinical variables including neurocognitive symptoms were evaluated. PET images were compared voxel-wise with SPM12 software ( P < 0.05, false discovery rate corrected) and volume-of-interest basis (BrainVisa software) with those of 55 healthy controls recruited before COVID-19 pandemic. We also investigated differences in brain metabolism according to the time interval after acute COVID-19. The correlation between brain metabolism and neurocognitive symptoms was assessed.</p><p><strong>Results: </strong>Frequently reported neurological symptoms included concentration difficulties (79%) and immediate/working memory impairments (66%). Significant hypometabolism was identified in regions previously identified in PASC: left fusiform gyrus (33% of patients), amygdala (23% on left, 28% on right), parahippocampal area (25% left, 24% right), and vermis (22%). The most substantial metabolism decreases were observed in the pons (5.5% decrease in the whole patient group vs controls) and right amygdala (-4.2%). Concentration and memory impairments correlated with decreased metabolism in prefrontal and mesial/inferior temporal areas, respectively ( P < 0.01 for both). A shorter interval between PET imaging and the acute phase of COVID-19 correlated with reduced glucose metabolism in the brainstem, thalamus, mesiotemporal lobe, frontobasal cortex, and olfactory bulb ( P < 10 -3 ).</p><p><strong>Conclusions: </strong>This study underscores the links between neurological symptoms and cerebral hypometabolism in specific regions in PASC. These findings illuminate the complex neuropathophysiological mechanisms of PASC and pave the way for potential therapeutic interventions.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":"e146-e153"},"PeriodicalIF":9.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142845840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Upstaging of Invasive Lobular Cancer With FES PET/CT.","authors":"Saud Rehman, Christine E Edmonds, David A Mankoff, Austin R Pantel, Sophia R O'Brien","doi":"10.1097/RLU.0000000000005465","DOIUrl":"10.1097/RLU.0000000000005465","url":null,"abstract":"<p><strong>Abstract: </strong>A 78-year-old woman diagnosed with left breast invasive lobular carcinoma with left axillary nodal metastasis underwent 18 F-fluoroestradiol (FES) PET/CT imaging for further evaluation of indeterminate right axillary lymph nodes seen on staging 18 F-FDG PET/CT. 18 F-FES PET/CT revealed abnormal 18 F-FES-avid right axillary and bilateral cervical nodes, subsequently biopsy-proven metastases, upstaging the patient from stage II to IV and greatly changing patient management. This case demonstrates the value of 18 F-FES PET/CT in accurately staging metastatic invasive lobular carcinoma at diagnosis, an indication for which 18 F-FES PET/CT \"may be appropriate\" per current Society of Nuclear Medicine and Molecular Imaging guidelines.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":"221-223"},"PeriodicalIF":9.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142388658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Breast Metastasis From Sigmoid Adenocarcinoma Revealed by FDG PET/CT.","authors":"Yanlin Liu, Hongyuan Dai, Minggang Su, Rui Huang","doi":"10.1097/RLU.0000000000005463","DOIUrl":"10.1097/RLU.0000000000005463","url":null,"abstract":"<p><strong>Abstract: </strong>Breast metastasis from sigmoid carcinoma is rare. A 32-year-old woman, who had a history of sigmoid carcinoma, was found a hypermetabolic soft tissue mass in the left breast and a lymph node with moderate uptake on FDG PET/CT. Final pathology supported that the breast mass and lymph node were both metastases from the sigmoid carcinoma.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":"e156-e157"},"PeriodicalIF":9.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142388720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hepatic Recurrence of Neuroendocrine Tumor Component in Gallbladder Cancer.","authors":"Tatsuki Ikejiri, Tomoaki Yoh, Yosuke Kasai, Kazuyuki Nagai, Etsuro Hatano","doi":"10.1097/RLU.0000000000005539","DOIUrl":"10.1097/RLU.0000000000005539","url":null,"abstract":"<p><strong>Abstract: </strong>A 60-year-old man underwent an extended cholecystectomy with regional lymphadenectomy for T2N0M0 gallbladder cancer (GBC), which showed significant FDG uptake (SUV max = 6.5). However, CT scan at 24 months postsurgery revealed multiple hepatic masses. Unlike the primary GBC, the hepatic masses showed limited FDG uptake (SUV max = 3.7). A tumor biopsy revealed the diagnosis of a grade 3 neuroendocrine tumor. Furthermore, the hepatic masses showed significant uptake on somatostatin receptor scintigraphy. Upon reevaluation, the primary resected specimen was found to include approximately 10% of neuroendocrine tumor components. This case suggests that different FDG uptake between primary and metastatic cancer may necessitate differential diagnosis.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":"e166-e167"},"PeriodicalIF":9.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142544211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"18 F-FDG PET/CT Imaging of Myoepithelial Carcinoma in the Left Femur.","authors":"Shuhui Huang, Hangyu Xie, Rui Huang","doi":"10.1097/RLU.0000000000005615","DOIUrl":"10.1097/RLU.0000000000005615","url":null,"abstract":"<p><strong>Abstract: </strong>Myoepithelial carcinoma of bone is uncommon. We presented the imaging features of myoepithelial carcinoma of the left femur in a 61-year-old man on 18 F-FDG PET/CT. Lytic bone destruction and the formation of a slightly low-density soft tissue mass extending to adjacent muscles with intense and circular FDG uptake were found on 18 F-FDG PET/CT. Postoperative pathology confirmed the diagnosis of myoepithelial carcinoma.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":"e187-e188"},"PeriodicalIF":9.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MR-Guided PET Reconstruction: A Potential Advancement for Patients With Epilepsy.","authors":"Martin W Huellner, Alexander Maurer, Matthew Spangler-Bickell","doi":"10.1097/RLU.0000000000005631","DOIUrl":"10.1097/RLU.0000000000005631","url":null,"abstract":"<p><strong>Abstract: </strong>We report a case of a 33-year-old man with epilepsy and equivocal EEG, MRI signs of mesiotemporal sclerosis, and nondiagnostic standard FDG-PET imaging. The patient underwent repeat FDG-PET/MRI to clarify the sidedness of the epileptogenic focus and to confirm the suspected MTS. The standard PET reconstruction using block sequential regularized expectation maximization failed to provide evidence of a clear epileptogenic focus. However, using MR-guided PET reconstruction, circumscribed hypometabolism was observed in the right-sided entorhinal cortex, compatible with the epileptogenic focus. The MR-guided PET reconstruction provided significantly improved gray/white matter differentiation, enhancing confidence in imaging interpretation.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":"271-272"},"PeriodicalIF":9.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142799540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lupus Nephritis Revealed by FAPI PET/CT.","authors":"Wenjie Zhang, Zhongzhi Qi, Guohua Shen","doi":"10.1097/RLU.0000000000005598","DOIUrl":"10.1097/RLU.0000000000005598","url":null,"abstract":"<p><strong>Abstract: </strong>A 38-year-old woman received a 68 Ga-FAPI-04 PET/CT scan for the evaluation of systemic lupus erythematosus. Diffuse uptake in both kidney parenchyma indicated the presence of lupus nephritis. In addition, an incidental carotid body tumor with increased FAPI uptake was also observed. Our case described the imaging features of lupus nephritis coexistent with a carotid body tumor on FAPI PET/CT.</p>","PeriodicalId":10692,"journal":{"name":"Clinical Nuclear Medicine","volume":" ","pages":"e171-e172"},"PeriodicalIF":9.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142946075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}