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. 2022 Aug 11;14(16):3886.
doi: 10.3390/cancers14163886.

Performances of Functional and Anatomic Imaging Modalities in Succinate Dehydrogenase A- Related Metastatic Pheochromocytoma and Paraganglioma

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Performances of Functional and Anatomic Imaging Modalities in Succinate Dehydrogenase A- Related Metastatic Pheochromocytoma and Paraganglioma

Mayank Patel et al. Cancers (Basel). .

Abstract

The study identifies the importance of positron emission tomographic (PET) and anatomic imaging modalities and their individual performances in detecting succinate dehydrogenase A (SDHA)-related metastatic pheochromocytoma and paraganglioma (PPGL). The detection rates of PET modalities-68Ga-DOTATATE, 18F-FDG, and 18F-FDOPA-along with the combination of computed tomography (CT) and magnetic resonance imaging (MRI) are compared in a cohort of 11 patients with metastatic PPGL in the setting of a germline SDHA mutation. The imaging detection performances were evaluated at three levels: overall lesions, anatomic regions, and a patient-by-patient basis. 68Ga-DOTATATE PET demonstrated a lesion-based detection rate of 88.6% [95% confidence interval (CI), 84.3-92.5%], while 18F-FDG, 18F-FDOPA, and CT/MRI showed detection rates of 82.9% (CI, 78.0-87.1%), 39.8% (CI, 30.2-50.2%), and 58.2% (CI, 52.0-64.1%), respectively. The study found that 68Ga-DOTATATE best detects lesions in a subset of patients with SDHA-related metastatic PPGL. However, 18F-FDG did detect more lesions in the liver, mediastinum, and abdomen/pelvis anatomic regions, showing the importance of a combined approach using both PET modalities in evaluating SDHA-related PPGL.

Keywords: 18F-FDG; 68Ga-DOTATATE; CT; MRI; PET; SDHA; metastatic; paraganglioma; pheochromocytoma.

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Conflict of interest statement

The authors declare no perceived conflict of interest.

Figures

Figure 1
Figure 1
These are maximum intensity projection image PET/CTs for Patient 3. (A) 68Ga-DOTATATE identified the most PPGL lesions, followed by (B) 18F-FDG, and the fewest lesions were identified on (C) 18F-FDOPA.

References

    1. Jochmanova I., Pacak K. Pheochromocytoma: The First Metabolic Endocrine Cancer. Clin. Cancer Res. 2016;22:5001–5011. doi: 10.1158/1078-0432.CCR-16-0606. - DOI - PMC - PubMed
    1. Amar L., Pacak K., Steichen O., Akker S.A., Aylwin S.J.B., Baudin E., Buffet A., Burnichon N., Clifton-Bligh R.J., Dahia P.L.M., et al. International consensus on initial screening and follow-up of asymptomatic SDHx mutation carriers. Nat. Rev. Endocrinol. 2021;17:435–444. doi: 10.1038/s41574-021-00492-3. - DOI - PMC - PubMed
    1. Crona J., Taieb D., Pacak K. New Perspectives on Pheochromocytoma and Paraganglioma: Toward a Molecular Classification. Endocr. Rev. 2017;38:489–515. doi: 10.1210/er.2017-00062. - DOI - PMC - PubMed
    1. Alrezk R., Suarez A., Tena I., Pacak K. Update of Pheochromocytoma Syndromes: Genetics, Biochemical Evaluation, and Imaging. Front Endocrinol. 2018;9:515. doi: 10.3389/fendo.2018.00515. - DOI - PMC - PubMed
    1. Bourgeron T., Rustin P., Chretien D., Birch-Machin M., Bourgeois M., Viegas-Pequignot E., Munnich A., Rotig A. Mutation of a nuclear succinate dehydrogenase gene results in mitochondrial respiratory chain deficiency. Nat. Genet. 1995;11:144–149. doi: 10.1038/ng1095-144. - DOI - PubMed

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