Superiority of 68Ga-DOTATATE over 18F-FDG and anatomic imaging in the detection of succinate dehydrogenase mutation (SDHx )-related pheochromocytoma and paraganglioma in the pediatric population
To evaluate and compare diagnostic performance of 68Ga-DOTA(0)-Tyr(3)-octreotate (68Ga-DOTATATE) with 18F–fluoro-2-deoxy-D-glucose (18F–FDG) positron emission tomography-computed tomography (PET/CT) and anatomic imaging using computed tomography and/or magnetic resonance (CT/MR) imaging in detection of SDHx-related pheochromocytomas and paragangliomas (PPGLs) in pediatric patients.
Nine pediatric patients (5:4, girls:boys; 14.6 ± 2.0 years) with an SDHx-related mutation (SDHB:SDHA:SDHD, n = 7:1:1) were included in this retrospective study. At the time of initial diagnosis, 7/9 patients had metastatic disease. They underwent CT/MR imaging along with PET/CT using 68Ga-DOTATATE (n = 9), 18F–FDG (n = 8), and positron emission tomography-magnetic resonance imaging (PET/MR) using 18F–FDG (n = 1). In this manuscript, 18F–FDG PET/CT refers to both 18F–FDG PET/CT and 18F–FDG PET/MR. The per-lesion, per-region, and per-patient detection rates were compared and calculated for each of the imaging modalities. A composite of all functional and anatomic imaging studies served as the imaging comparator.
Eight out of nine patients were positive for PPGLs on the imaging studies that demonstrated 107 lesions in 22 anatomic regions on the imaging comparator. The per-lesion detection rates for 68Ga-DOTATATE PET/CT, 18F–FDG PET/CT, and CT/MR imaging were 93.5% (95%CI, 87.0% to 97.3%); 79.4% (95%CI, 70.5% to 86.6%); and 73.8% (95%CI, 64.5% to 81.9%), respectively. The per-lesion detection rate for 68Ga-DOTATATE PET/CT was significantly higher than that of 18F–FDG PET/CT (p = 0.001) or CT/MR imaging (p < 0.001). In all of the anatomic regions except abdomen, the per-lesion detection rates for 68Ga-DOTATATE PET/CT was found to be equal or superior to 18F–FDG PET/CT, and CT/MR imaging. The per-region detection rate was 100% (95%CI, 84.6% to 100%) for 68Ga-DOTATATE PET/CT and 90.9% (95%CI, 70.8% to 98.9%) for both 18F–FDG PET/CT and CT/MR imaging. The per-patient detection rates for 68Ga-DOTATATE PET/CT, 18FDG PET/CT, and CT/MR imaging were all 100% (95%CI, 63.1% to 100%).
Our preliminary study demonstrates the superiority of 68Ga-DOTATATE PET/CT in localization of SDHx-related PPGLs in pediatric population compared to 18F–FDG PET/CT and CT/MR imaging with the exception of abdominal (excluding adrenal and liver) lesions, and suggests that it might be considered as a first-line imaging modality in pediatric patients with SDHx-related PPGLs.
Keywords68Ga-DOTATATE FDG PET/CT Pediatric Pheochromocytoma Paraganglioma
We would like to thank Dr. Paul Wakim for the assistance in statistical analyses. We would also like to thank the patients and their families, for participating in the study, and all of the people who participated in this project, especially the technologists in the NIH Clinical Center PET Department.
This work was supported, in part, by the Intramural Research Program of the National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development and was supported, in part, by the Intramural Research Program of the Center for Cancer Research, National Cancer Institute.
Compliance with ethical standards
This study was funded by National Institutes of Health (grant number: Z1AHD008735).
Conflict of interest
Author Abhishek Jha declares no conflict of interest. Author Alexander Ling declares no conflict of interest. Author Corina Millo declares no conflict of interest. Author Garima Gupta declares no conflict of interest. Author Bruna Viana declares no conflict of interest. Author Frank I. Lin declares no conflict of interest. Author Peter Herscovitch declares no conflict of interest. Author Karen T. Adams declares no conflict of interest. Author David Taïeb declares no conflict of interest. Author Adam R. Metwalli declares no conflict of interest. Author W. Marston Linehan declares no conflict of interest. Author Alessandra Brofferio declares no conflict of interest. Author Constantine A. Stratakis declares no conflict of interest. Author Electron Kebebew declares no conflict of interest. Author Maya Lodish declares no conflict of interest. Author Ali Cahid Civelek declares no conflict of interest. Author Karel Pacak declares no conflict of interest. Informed consent was obtained from all individual participants included in the study.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed assent from the patients and signed permission from one or both parents were obtained for all the individual participants included in the study.
- 6.Michalowska I, Cwikla JB, Peczkowska M, Furmanek MI, Buscombe JR, Michalski W, et al. Usefulness of somatostatin receptor scintigraphy (Tc-[HYNIC, Tyr3]-octreotide) and 123I-Metaiodobenzylguanidine scintigraphy in patients with SDHx gene-related Pheochromocytomas and Paragangliomas detected by computed tomography. Neuroendocrinology. 2015;101:321–30. https://doi.org/10.1159/000381458.CrossRefPubMedGoogle Scholar
- 7.Bezawork-Geleta A, Rohlena J, Dong L, Pacak K, Neuzil J. Mitochondrial Complex II: At the Crossroads. Trends Biochem Sci. 2017;42:312–325. doi: https://doi.org/10.1016/j.tibs.2017.01.003.
- 8.Ayala-Ramirez M, Feng L, Johnson MM, Ejaz S, Habra MA, Rich T, et al. Clinical risk factors for malignancy and overall survival in patients with pheochromocytomas and sympathetic paragangliomas: primary tumor size and primary tumor location as prognostic indicators. J Clin Endocrinol Metab. 2011;96:717–25. https://doi.org/10.1210/jc.2010-1946.CrossRefPubMedGoogle Scholar
- 9.Turkova H, Prodanov T, Maly M, Martucci V, Adams K, Widimsky J Jr, et al. Characteristics and outcomes of metastatic Sdhb and sporadic Pheochromocytoma/Paraganglioma: an National Institutes of Health study. Endocr Pract. 2016;22:302–14. https://doi.org/10.4158/EP15725.OR.CrossRefPubMedGoogle Scholar
- 11.Amar L, Baudin E, Burnichon N, Peyrard S, Silvera S, Bertherat J, et al. Succinate dehydrogenase B gene mutations predict survival in patients with malignant pheochromocytomas or paragangliomas. J Clin Endocrinol Metab. 2007;92:3822–8. https://doi.org/10.1210/jc.2007-0709.CrossRefPubMedGoogle Scholar
- 12.Timmers HJ, Chen CC, Carrasquillo JA, Whatley M, Ling A, Eisenhofer G, et al. Staging and functional characterization of pheochromocytoma and paraganglioma by 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography. J Natl Cancer Inst. 2012;104:700–8. https://doi.org/10.1093/jnci/djs188.CrossRefPubMedPubMedCentralGoogle Scholar
- 14.Babic B, Patel D, Aufforth R, Assadipour Y, Sadowski SM, Quezado M, et al. Pediatric patients with pheochromocytoma and paraganglioma should have routine preoperative genetic testing for common susceptibility genes in addition to imaging to detect extra-adrenal and metastatic tumors. Surgery. 2017;161:220–7. https://doi.org/10.1016/j.surg.2016.05.059.CrossRefPubMedGoogle Scholar
- 18.King KS, Prodanov T, Kantorovich V, Fojo T, Hewitt JK, Zacharin M, et al. Metastatic pheochromocytoma/paraganglioma related to primary tumor development in childhood or adolescence: significant link to SDHB mutations. J Clin Oncol. 2011;29:4137–42. https://doi.org/10.1200/JCO.2011.34.6353.CrossRefPubMedPubMedCentralGoogle Scholar
- 22.Janssen I, Blanchet EM, Adams K, Chen CC, Millo CM, Herscovitch P, et al. Superiority of [68Ga]-DOTATATE PET/CT to other functional imaging modalities in the localization of SDHB-associated metastatic Pheochromocytoma and Paraganglioma. Clin Cancer Res. 2015;21:3888–95. https://doi.org/10.1158/1078-0432.CCR-14-2751.CrossRefPubMedPubMedCentralGoogle Scholar
- 23.U.S. Food and Drug Administration. FDA approves new diagnostic imaging agent to detect rare neuroendocrine tumors. 2016. https://www.fda.gov/newsevents/newsroom/pressannouncements/ucm504524.htm. Accessed 05/30/2017.
- 26.Janssen I, Chen CC, Millo CM, Ling A, Taieb D, Lin FI, et al. PET/CT comparing (68)Ga-DOTATATE and other radiopharmaceuticals and in comparison with CT/MRI for the localization of sporadic metastatic pheochromocytoma and paraganglioma. Eur J Nucl Med Mol Imaging. 2016;43:1784–91. https://doi.org/10.1007/s00259-016-3357-x.CrossRefPubMedGoogle Scholar
- 27.Janssen I, Chen CC, Taieb D, Patronas NJ, Millo CM, Adams KT, et al. 68Ga-DOTATATE PET/CT in the localization of head and neck Paragangliomas compared with other functional imaging modalities and CT/MRI. J Nucl Med. 2016;57:186–91. https://doi.org/10.2967/jnumed.115.161018.CrossRefPubMedGoogle Scholar
- 28.Kong G, Grozinsky-Glasberg S, Hofman MS, Callahan J, Meirovitz A, Maimon O, et al. Efficacy of peptide receptor radionuclide therapy (PRRT) for functional metastatic Paraganglioma and Phaeochromocytoma. J Clin Endocrinol Metab. 2017; https://doi.org/10.1210/jc.2017-00816.