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Prognostic role and characteristics of the indeterminate response in differentiated thyroid cancer: a systematic review. Endocrine 2024:10.1007/s12020-024-03688-5. [PMID: 38265607 DOI: 10.1007/s12020-024-03688-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/06/2024] [Indexed: 01/25/2024]
Abstract
PURPOSE The management of differentiated thyroid cancer (DTC) is actually based on a dynamic risk stratification based on classes of response to the therapy. Indeterminate response (IR) includes a heterogeneous group of patients with different characteristics, particularly different Tg and AbTg levels and/or imaging findings. The aim of systematic review (SR) is to evaluate the prognosis, diagnostic findings and other characteristics of patients in the IR class. METHODS A wide literature search in the Scopus, PubMed/MEDLINE and Web of Science databases was performed to find published articles on patients with DTC and IR after treatment. The quality assessment of studies was carried out using QUADAS-2 evaluation. RESULTS Eight articles were included in the systematic review. Six studies evaluated the prognosis and the prognostic factor in patients with IR, one study evaluated the role of 2-[18F]FDG PET-CT in the management of patients with IR and biochemical incomplete response and one study the risk factors for IR. CONCLUSION Patients with DTC and IR to therapy have a probability of disease relapse < 15%. Tg value could be a predictor of disease progression. The role of 2-[18F]FDG PET-CT needs to be further investigated.
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The role of warm ischemia time on functional outcomes after robotic partial nephrectomy: Data from the clock randomized trial. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01068-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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3
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Incidental radioiodine uptake at whole body scan due to Primary Sjogren Syndrome in a patient with differentiated Thyroid cancer. Rev Esp Med Nucl Imagen Mol 2021; 41:S2253-654X(20)30146-3. [PMID: 34074620 DOI: 10.1016/j.remn.2020.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 11/16/2022]
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4
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A rare case of omental infarction after adrenalectomy detected by 18F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2021; 40:121-122. [PMID: 33674233 DOI: 10.1016/j.remn.2020.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/19/2020] [Accepted: 03/01/2020] [Indexed: 10/22/2022]
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5
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18F-FDG-PET/CT in laryngeal cancer: Comparison with conventional imaging and prognostic role. Rev Esp Med Nucl Imagen Mol 2021. [PMID: 33642259 DOI: 10.1016/j.remn.2020.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the diagnostic accuracy of staging 18F-FDG-PET/CT in laryngeal cancer, compare these results with conventional imaging (CI) and assess the value of 18F-FDG-PET/CT features to predict survival. METHODS Fifty-four patients with laryngeal squamous cell cancer and baseline 18F-FDG-PET/CT were retrospectively enrolled. The PET images were analyzed visually and semi-quantitatively by measuring several metabolic parameters. A combination of clinical follow-up/imaging follow-up and/or histopathology was taken as reference standard. Progression free survival (PFS) and disease specific survival (DSS) were computed using Kaplan-Meier curves. RESULTS All primary tumors were clearly identified by CI, and 52/54 by 18F-FDG-PET/CT with a sensitivity of 96.3%. Cervical nodal metastases were detected in 40/54 patients at 18F-FDG-PET/CT and in 34/49 patients at CI. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy on a patient-based analysis for nodal disease were 100%, 85.7%, 94.6%, 100% and 95.9% at 18F-FDG-PET/CT, and 91.4%, 85.7%, 94.1%, 80%, 89.8% at CI. Diagnostic performances of PET/CT and CI were not significantly different on a patient-based, side-by-side and level-by-level analysis. 18F-FDG-PET/CT recognized distant metastases in 7 patients allowing to an upstaging. At a median follow-up of 27 months, relapse/progression of disease occurred in 31 patients and death occurred in 32. Metabolic tumor volume (MTV T), MTV total and total lesion glycolysis (TLG) showed to be independent prognostic factors for PFS. CONCLUSIONS Both CI and PET/CT had good diagnostic performances for the staging of laryngeal cancer; baseline metabolic features (MTV and TLG) showed an important prognostic value in assessing the rate of PFS.
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Incidental uterine fibroid detected by 68Ga-DOTATOC PET/CT scan in patient with ileal neuroendocrine tumor. Rev Esp Med Nucl Imagen Mol 2021. [PMID: 33608243 DOI: 10.1016/j.remn.2020.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Erdheim-Chester disease: The power of nuclear medicine imaging. Rev Esp Med Nucl Imagen Mol 2020; 39:323-324. [PMID: 32616456 DOI: 10.1016/j.remn.2020.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 12/26/2019] [Accepted: 01/02/2020] [Indexed: 11/30/2022]
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8
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18F-FDG PET or PET/CT role in plasmacytoma: A systematic review. Rev Esp Med Nucl Imagen Mol 2020; 39:220-224. [PMID: 32522411 DOI: 10.1016/j.remn.2019.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 12/04/2019] [Accepted: 12/12/2019] [Indexed: 01/03/2023]
Abstract
BACKGROUND The metabolic behavior of plasmacytoma at 18F-FDG PET/CT is not yet clear. OBJECTIVE The aim of this systematic review was to analyze published data about the role of 18F-FDG PET or PET/CT in patients affected by plasmacytoma. METHODS Acomprehensive computer literature search of the Scopus, PubMed/MEDLINE, Embase and Cochrane Library databases was conducted including articles up to July 2019 to find relevant published papers about the performance of 18F-FDG PET and PET/CT in plasmacytoma. RESULTS The comprehensive computer literature search revealed 371 articles. On reviewing the titles and abstracts, 363 articles were excluded because the reported data were not within the field of interest of this review. Eight articles were selected and retrieved in full-text version. From the analyses of the selected studies, the following main findings have been founded: 1) plasmacytoma generally is a 18F-FDG-avid tumor and PET/CT had good diagnostic performance with high sensitivity; 2) 18F-FDG PET/CT influenced patient management in most cases avoiding useless therapies and choosing the best therapeutic approach; 3) prognostic value of PET/CT qualitative and semiquantitative parameters is only suggested with controversial reports. CONCLUSION Despite several limitations affect this analysis, especially related to the low number of articles and patients studied, plasmacytoma looks to be an 18F-FDG-avid tumor in most of the cases; 18F-FDG PET or PET/CT had good diagnostic performance and had a significant clinical impact in change of therapeutic approach. Moreover, a possible prognostic role of PET/CT features is described.
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Nonfunctioning paraganglioma incidentally detected by 18F-FDG PET/CT and confirmed by 123I-MIBG M scintigraphy. Rev Esp Med Nucl Imagen Mol 2019; 39:41-42. [PMID: 31818696 DOI: 10.1016/j.remn.2019.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/25/2019] [Accepted: 05/02/2019] [Indexed: 11/19/2022]
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10
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18F-FDG PET/CT brown fat detection: Differences between adult and pediatric population in a 12 year experience. Rev Esp Med Nucl Imagen Mol 2019; 38:224-228. [PMID: 30987886 DOI: 10.1016/j.remn.2019.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/11/2018] [Accepted: 01/21/2019] [Indexed: 10/27/2022]
Abstract
PURPOSE To analyze epidemiological and anthropometric features of patients with brown adipose tissue (BAT) activation detected by fluorine18-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT). MATERIAL AND METHODS From 2005 to 2017, 818 18F-FDG PET/CT studies positive for BAT detection were retrospectively included, 742 examinations performed on the adult population and 76 PET/CT on the pediatric population. A Chi-squared test was performed to compare features distribution between the adult and pediatric patients. RESULTS Adults showed a higher rate of BAT detection in females (79% vs. 61%, P<0.001) and in hyperglycaemic patients (>100mg/dL) (24% vs. 16%, P=0.02), no significant difference was found with regard to overweight patients (BMI>25kg/m2) (22% vs. 20%, P=.55). Considering females only, the adults showed a higher rate of BAT detection both in hyperglycaemic (83% vs. 42%, P<0.001) and overweight patients (80% vs. 67%, P=0.005). In both populations BAT activation happened more frequently in cold seasons; there was no significant distribution difference with regard to season of birth (P=0.2). CONCLUSIONS Sex, glycemia and BMI play a major role in predicting BAT activation, with significant differences between adults and pediatric patients. Cold exposure is confirmed as an important predicting factor, while season of birth is not significant.
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11
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Encrusted cystitis detected by 18F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2019; 38:250-251. [PMID: 30638879 DOI: 10.1016/j.remn.2018.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 07/24/2018] [Accepted: 10/22/2018] [Indexed: 01/15/2023]
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12
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Clinical and prognostic value of 18F-FDG PET/CT in recurrent endometrial carcinoma. Rev Esp Med Nucl Imagen Mol 2018; 38:87-93. [PMID: 30573388 DOI: 10.1016/j.remn.2018.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/17/2018] [Accepted: 09/19/2018] [Indexed: 11/26/2022]
Abstract
PURPOSE Endometrial carcinoma (EC) is a cancer with a good overall prognosis, except in cases of recurrent or advanced EC. The aim of this study was to assess the diagnostic performance, the prognostic value and the impact on therapeutic management of 18F-FDG PET/CT in suspected recurrent EC. MATERIALS AND METHODS We retrospectively evaluated 157 patients with histologically proven EC and restaging 18F-FDG PET/CT for suspected recurrence. The PET images were analyzed visually and semi-quantitatively by measuring SUVmax, MTV and TLG. A combination of clinical/imaging follow-up and/or histopathology was taken as reference standard. Progression-free survival (PFS) and overall survival (OS) were computed using Kaplan-Meier curves. RESULTS Seventy-nine patients had positive 18F-FDG PET/CT showing the presence of at least one hypermetabolic lesion consistent with recurrence, while the remaining 78 were negative. Sensitivity, specificity, positive predictive value, negative predictive value and accuracy of 18F-FDG PET/CT were 96%, 99%, 99%, 96%, 97%, respectively, and were higher compared to conventional imaging: 97%, 62%, 72%, 96%, 80%. After a mean follow-up of 39months, relapse/progression occurred in 58 patients and death in 37 with an average time of 22.1 and 27.6months, respectively. A positive 18F-FDG PET/CT and advanced FIGO stage were significantly associated with shorter PFS and OS. PET/CT results had a significant impact on therapeutic approach in 33 patients: avoiding unnecessary therapies in 28 and modifying therapy in 5. CONCLUSIONS 18F-FDG PET/CT has a very good diagnostic performance in patients with suspected recurrent EC and has an important prognostic value in assessing PFS and OS. Moreover, PET/CT allowed for a change in treatment decision in about 20% of cases.
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Ethmoidal and extranodal Burkitt lymphoma in a child with bilateral kidney Burkitt lymphoma lesions incidentally detected by 18F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2018; 37:384-386. [PMID: 29636232 DOI: 10.1016/j.remn.2017.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 10/17/2022]
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Focal thyroid incidental uptake detected by 18F-fluorodeoxyglucose positron emission tomography. Nuklearmedizin 2017; 52:130-6. [DOI: 10.3413/nukmed-0568-13-03] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Accepted: 06/08/2013] [Indexed: 01/08/2023]
Abstract
SummaryAim: To perform a meta-analysis of published data on the prevalence and risk of malignancy of focal thyroid incidental uptake (FTIs) detected by Fluorine-18-Fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) or PET/CT. Methods: A comprehensive literature search of studies published up to and including December 2012 was performed. Pooled prevalence and malignancy risk of FTIs were calculated, including a sub-analysis for the geographic areas of origin of the studies. Results: 34 studies including 215 057 patients were selected. Pooled prevalence of FTIs was 1.92% (95% confidence interval [95%CI]: 1.87–1.99%). Overall, 1522 FTIs underwent histopathology evaluation. Pooled risk of malignancy was 36.2% (95%CI: 33.8–38.6%), without significant differences among various geographic areas. Conclusions: FTIs are observed in about 2% of 18F-FDG-PET or PET/CT scans and carry a significant risk of malignancy. Therefore, further investigation is warranted whenever FTIs are detected by 18F-FDG-PET or PET/CT.
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Incidental pituitary adenoma detected by 18F-FDG PET/CT and 18F-choline PET/CT in the same patient. Rev Esp Med Nucl Imagen Mol 2017; 37:250-252. [PMID: 28800881 DOI: 10.1016/j.remn.2017.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/03/2017] [Accepted: 07/09/2017] [Indexed: 12/01/2022]
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18 F-FDG PET/CT follow-up of follicular dendritic cell sarcoma. Rev Esp Med Nucl Imagen Mol 2017. [DOI: 10.1016/j.remnie.2017.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Right atrial metastasis of GIST detected by 18 F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2017. [DOI: 10.1016/j.remnie.2016.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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18 F-FDG PET/CT in staging and follow-up of adamantinoma. Rev Esp Med Nucl Imagen Mol 2016. [DOI: 10.1016/j.remnie.2016.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Thyroid nodules with indeterminate cytology: prospective comparison between 18F-FDG-PET/CT, multiparametric neck ultrasonography, 99mTc-MIBI scintigraphy and histology. Eur J Endocrinol 2016; 174:693-703. [PMID: 26966173 DOI: 10.1530/eje-15-1199] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 02/19/2016] [Indexed: 01/03/2023]
Abstract
PURPOSE To evaluate the role of (18)F-flurodeoxiglucose positron emission tomography/computed tomography ((18)F-FDG-PET/CT) in predicting malignancy of thyroid nodules with indeterminate cytology. PATIENTS AND METHODS We analysed 87 patients who have been scheduled to undergo surgery for thyroid nodule with indeterminate cytology. All patients underwent (18)F-FDG-PET/CT, multiparametric neck ultrasonography (MPUS), and (99m)Tc-methoxyisobutylisonitrile scintigraphy ((99m)Tc-MIBI-scan). Histopathology was the standard of reference. We compared the sensitivity (SE), specificity (SP), accuracy (AC), positive (PPV) and negative predictive (NPV) values of (18)F-FDG-PET/CT with those of (99m)Tc-MIBI-scan and MPUS in detecting cancer. Univariate and multivariate analyses evaluated the association between each diagnostic tool and histopathology. RESULTS On histopathology, 69 out of 87 nodules were found to be benign and 18 to be malignant. The SE, SP, AC, PPV and NPV of (18)F-FDG-PET/CT were 94, 58, 66, 37 and 98% respectively. The SE, AC and NPV of (18)F-FDG-PET/CT were significantly higher than those of MPUS and (99m)Tc-MIBI-scan. The association of both positive (18)F-FDG-PET/CT and MPUS (FDG+/MPUS+) showed significantly lower SE (61% vs 94%) and NPV (88% vs 98%) than (18)F-FDG-PET/CT alone, but significantly higher SP (77% vs 58%). On univariate analysis, (18)F-FDG-PET/CT and the combination of FDG+/MPUS+ and of FDG+/MIBI- were all significantly associated with histopathology. On multivariate analysis, only FDG+/MIBI- was significantly associated with histopathology. CONCLUSION The AC of (18)F-FDG-PET /CT in detecting thyroid malignancy is higher than that of (99m)Tc-MIBI-scan and MPUS. A negative (18)F-FDG-PET/CT correctly predicts benign findings on histopathology. The association of FDG+/MPS+ is significantly more specific than (18)F-FDG-PET/CT alone in identifying differentiated thyroid cancer. A positive (18)F-FDG-PET/CT is significantly associated with malignancy when qualitative (99m)Tc-MIBI-scan is rated as negative.
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(18)F-FDG PET/CT in staging and follow-up of adamantinoma. Rev Esp Med Nucl Imagen Mol 2016; 35:341-3. [PMID: 26988310 DOI: 10.1016/j.remn.2016.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 02/03/2016] [Accepted: 02/04/2016] [Indexed: 11/29/2022]
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Diagnostic role of (18)F-FDG-PET or PET/CT in salivary gland tumors: A systematic review. Rev Esp Med Nucl Imagen Mol 2015; 34:295-302. [PMID: 26488055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Salivary gland tumors are rare neoplasms that have not been extensively studied with (18)F-FDG-PET- or PET/CT up to now. This review aims to evaluate the diagnostic performance of PET in this particular setting, analyzing the available literature. A comprehensive literature search in the PubMed/MEDLINE, Embase and Scopus databases was performed including articles up to November 2014, resulting in the selection of 22 articles. The studies selected suggest that: (1) PET is not useful in discriminating benign from malignant SGTs because of the overlap of uptake in both conditions; (2) PET not only is complementary to conventional imaging techniques for the staging and restaging but in some cases could also be superior to them; (3) PET may often have a highly positive impact on clinical decision making. Despite many limitations affecting the analysis, PET seems to be useful in SGTs. However, more extensive studies and cost-effectiveness analyses are desirable to determine its correct position in the diagnostic flow chart.
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22
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A rare case of adenoid cystic carcinoma of the breast detected by 18F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2015. [DOI: 10.1016/j.remnie.2015.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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23
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Incidental uptake of 18F-fluorodeoxyglucose in the prostate gland. Systematic review and meta-analysis on prevalence and risk of malignancy. Nuklearmedizin 2014; 53:249-58. [PMID: 25170975 DOI: 10.3413/nukmed-0668-14-05] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 08/18/2014] [Indexed: 12/19/2022]
Abstract
AIM To perform a systematic review and meta-analysis of published data on the prevalence and risk of malignancy of prostatic incidental uptake (PIU) detected by fluorine-18-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) or PET/computed tomography (PET/CT). PATIENTS, MATERIAL, METHODS A comprehensive literature search of studies published up to February 2014 was performed. Pooled prevalence and malignancy risk of PIU were calculated on a per patient-based analysis including 95% confidence interval (95%CI). Furthermore, we assessed some parameters as potential predictors of malignant PIU. RESULTS Six studies including 47925 patients who underwent 18F-FDG PET/CT were selected. Pooled prevalence of PIU was 1.8% (95%CI: 1.3-2.3%). Overall, 444 patients with PIU were further evaluated and 121 underwent biopsy. The pooled risk of malignancy in patients with PIU further evaluated or verified by biopsy were 17% (95%CI: 12-23%) and 62% (95%CI: 54-71%), respectively. A higher mean age was observed in the group of malignant PIUs compared to benign PIUs. There was a trend towards a higher mean SUV(max) in the group of malignant PIUs but without a statistically significant difference compared to benign PIUs. Peripheric site of PIU but not presence or absence of calcification was a predictor of malignancy. CONCLUSIONS PIU is observed in about 1.8% of 18F-FDG PET/CT scans performed in male patients carrying a significant risk of malignancy. Therefore, whenever a PIU is detected further investigation is warranted to exclude malignancy, in particular when PIU is located in the peripheric site of prostate gland.
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A rare case of adenoid cystic carcinoma of the breast detected by (18)F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2014; 34:205-6. [PMID: 25103144 DOI: 10.1016/j.remn.2014.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/02/2014] [Accepted: 07/03/2014] [Indexed: 11/29/2022]
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25
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A false positive finding on the PET of somatostatin receptor due to a chondromyxoid fibroma. Rev Esp Med Nucl Imagen Mol 2014. [DOI: 10.1016/j.remnie.2014.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Transposition of the great arteries: factors influencing prenatal diagnosis. Prenat Diagn 2014; 34:534-7. [PMID: 24532355 DOI: 10.1002/pd.4343] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 02/11/2014] [Accepted: 02/11/2014] [Indexed: 11/07/2022]
Abstract
OBJECTIVE The objective of this study is to highlight the factors that may affect prenatal diagnosis of transposition of the great arteries (TGA) in order to improve it. METHODS This is a retrospective study performed between 2004 and 2009 in the maternity units from North of France. We identified a total of 68 cases of TGA (isolated or associated with only VSD or coarctation of aorta), of which 32 (47.1%) had prenatal diagnosis (PND+) and 36 did not (PND-). Maternal characteristics and ultrasound factors were studied in relation to PND. RESULTS Maternal weight and body mass index were significantly higher in the PND- group (70.4 kg and 26.5 kg/m(2) vs 63.6 kg and 23.6 kg/m(2) , respectively). Maternal obesity (body mass index >30) was significantly more frequent in the PND- group (27.8% vs 12.5%). More than a quarter of TGA (28.1%) were diagnosed during the third trimester. CONCLUSION Obesity is the main cause of missed PND of TGA. Obese patients with suboptimal prenatal scans may benefit from reassessment of fetal cardiac anatomy and/or from referral for fetal echocardiography.
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An unusual case of metastatic extramammary Paget's disease of the vulva identified by 18F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2013. [DOI: 10.1016/j.remnie.2013.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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A false positive finding on the PET of somatostatin receptor due to a chondromyxoid fibroma. Rev Esp Med Nucl Imagen Mol 2013; 33:245-6. [PMID: 24140025 DOI: 10.1016/j.remn.2013.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 09/02/2013] [Accepted: 09/03/2013] [Indexed: 11/19/2022]
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29
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A case of optic neuritis incidentally detected by somatostatin receptor scintigraphy. Rev Esp Med Nucl Imagen Mol 2013; 33:189-90. [PMID: 24094374 DOI: 10.1016/j.remn.2013.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 07/26/2013] [Accepted: 07/29/2013] [Indexed: 11/19/2022]
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30
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An unusual case of metastatic extramammary Paget's disease of the vulva identified by 18F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2013; 32:402-3. [PMID: 23809514 DOI: 10.1016/j.remn.2013.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 05/03/2013] [Accepted: 05/06/2013] [Indexed: 10/26/2022]
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31
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P4-07-19: Bone Marrow Involvement Is Associated with High Numbers of Circulating Tumor Cells in Peripheral Blood of Metastatic Breast Cancer Patients. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p4-07-19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Circulating Tumor Cells (CTCs) levels are dynamic indicators of prognosis and response to therapy in metastatic breast cancer (MBC) patients (pts). CTCs levels have been reported to be higher in pts with bone than visceral metastases, respectively. However, little is known about CTCs levels in pts with BM involvement. We analysed CTC patterns in patients with either visceral, bone or BM to test the hypothesis that BM involvement would facilitate tumor cells to enter the systemic circulation as CTCs. Patients and methods: Sites and extension of metastatic disease were identified with conventional imaging. Bone metastases were diagnosed with either bone scintigraphy or CT-PET and the BM involvement was documented histologically by BM biopsy and metabolically by CT-PET. A training set of 10 pts was evaluated by both BM biopsy and CT-PET to verify the diagnostic performance of CT-PET in identifying BM metastases (M+). We found a 100% concordance between BM biopsy and CT-PET and we therefore used CT-PET for further analyses. The CellSearch System (Veridex LLC, Raritan, NJ, USA) was used for the isolation and enumeration of CTCs in peripheral blood. The Student's t-test and the two-way ANOVA test were used to compare means of CTCs among patients with different metastatic patterns.
Results: The CTCs mean and median scores of 129 MBC pts were analysed. Final analysis focused on 101 pts with bone M+. Thirty-three pts had bone M+ alone and 68 pts had bone and visceral M+ (including lymphnodes, brain, liver and lung/pleura). Number of metastatic sites was 1, 2, 3, 4, 5 in 30%, 37%, 25%, 6% and 2% of pts, respectively. BM involvement was documented in 27 (27%) of pts in the whole series and in 12 (33%) of pts with bone M+ alone. Mean CTCs score in the whole series was 392 (0-9993) and the median number of CTCs was 20. In the whole series, BM involvement was associated with higher mean CTCs scores (1350 vs 42, p .014). In pts with bone M+ alone, mean CTCs score was 696 (0-7000) and pts with BM involvement had higher mean CTCs scores (1846 vs 39, p 0.37). Among the different metastatic patterns, the association of bone with BM involvement and liver M+ was correlated with the highest CTCs numbers. We could not perform comparisons in the 68 pts with both bone and visceral localizations because of the variety of metastatic patterns. However, the two-way ANOVA showed a significant influence of BM involvement on mean CTCs scores in pts with different metastatic patterns (p >.001).
Conclusions: This work confirms that pts with bone metastases have higher numbers of CTCs than pts with visceral metastases. Extensive bone disease with BM involvement is characterized by an increase in CTCs numbers compared to bone disease without BM involvement. Bone marrow metastases are metabolically more active by CT-PET and can be accurately detected by metabolic imaging without need of BM biopsy. Further studies are ongoing.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P4-07-19.
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¹³¹I treatment of toxic nodular goiter under combined thyrostatic-thyromimetic medication is at low risk of late hypothyroidism. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF... 2010; 54:341-347. [PMID: 20639819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
AIM Treatment of toxic nodular goiter with ¹³¹I is a first-line therapy for hyperthyroidism. To avoid a thyrotoxic storm, ¹³¹I is usually administered after pretreatment with antithyroid drugs, with thyroid-stimulating hormone (TSH) increase and functional recruitment of inhibited normal tissue. Therefore, both autonomous nodule(s) and normal tissue are irradiated. This may be a reason for late hypothyroidism occurring in 15-25% of patients. This study aimed at assessing different pretreatment modalities with combined methymazole and triiodothyronine, achieving euthyroidism with suppressed TSH. METHODS After diagnosis of autonomously functioning toxic nodule, patients were subjected to thyrostatic medication. Two months later, TSH was checked; if >0.5 mU/L triiodothyronine treatment was associated. After 2 more months, if the TSH level was suppressed, patients received ¹³¹I-therapy. A total of 149 patients were consecutively enrolled, 41 of whom with uninodular and 108 with multinodular goiter. They were evaluated at diagnosis, pretreatment, 3 and 6 months after therapy and at late follow-up (6.8+/-4.2 years; range: 1-22 years). RESULTS Administered activity was calculated according to ¹³¹I uptake and gland weight. Methymazole was discontinued 6 days before treatment and T3 was maintained until administration of ¹³¹I-therapy. Euthyroidism was achieved in 88% of patients. At late follow-up, subclinical hypothyroidism was observed in 10 patients (6.7%) and overt hypothyroidism in 5 patients (3.3%). No pathological consequences or side effects of ¹³¹I-therapy were found during the 6.8+/-4.2 year follow-up period. CONCLUSION Treatment of toxic nodular goiter with ¹³¹I-therapy, under combined thyrostatic-thyromimetic treatment is a simple, safe, well-tolerated, and effective procedure.
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FDG-PET in the assessment of patients with follicular lymphoma treated by ibritumomab tiuxetan Y 90: multicentric study. Ann Oncol 2010; 21:1877-1883. [PMID: 20147744 DOI: 10.1093/annonc/mdq024] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND The aim of this study is the 2-[fluorine-18]fluoro-2-deoxy-D-glucose (FDG)-positron emission tomography (PET) evaluation following radioimmunotherapy (RIT) with ibritumomab tiuxetan Y 90 in patients with non-Hodgkin's follicular lymphoma (FL). MATERIALS AND METHODS We retrospectively analyzed data from 59 relapsed or refractory FL patients treated with ibritumomab tiuxetan Y 90 in four different PET centers who had a PET scan carried out before and after RIT. Possible predictive factors of progression-free survival (PFS) were studied through univariate and multivariate analysis. RESULTS The post-RIT PET documented 45.8% complete responders (CR), 25.4% partial responders (PR) and 28.8% nonresponders [stable disease + progressive disease], with an overall survival of 71.2% (range 59.5%-90.9%). With a median follow-up period of 23 months, the univariate analysis documented a statistically significant relation between disease extent before RIT and response to treatment with respect to PFS (P = 0.015), while all the other prognostic factors showed no significant correlation. When carrying out the multivariate analysis, post-RIT PET resulted as the lonely independent predictor of PFS (P < 0.00001). CONCLUSIONS RIT is an effective therapy in FL patients, as confirmed in our study too. Disease extension before treatment and response to RIT, as assessed by FDG-PET, result as main predictors of PFS, with the post-RIT PET result being the only independent predictive factor.
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