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Evaluation of the occurrence of the manifestations of Carney complex in a french cohort of 70 patients during a three years standardized follow-up

Abstract : Introduction The Carney Complex is a multiple endocrine and non endocrine neoplasia mostly due to PRKAR1A mutations. Spectrum of manifestations and genotypephenotype correlations have been previously described by retrospective studies. A prospective study evaluating the occurrence of the different manifestations was needed to precise the optimum follow-up. Methods Multi-center national prospective study (Clinical Trials NCT00668291) including 70 patients mutated or wild-type for PRKAR1A followed prospectively during 3years with screening of the different manifestations by annual clinical, biological and radiological evaluation. Results The cohort was compound of 50 females and 20 males with a mean age at 35.4years C/K16.7. Prevalence of cardiac myxomas at the end of the follow-up was 22.9% with newly diagnosis during the study period for 3 patients. Fortyfour% of patients with myxomas had related stroke attack and 56% had recurrences. Median delay between recurrences was 3.8years (minimummaximum: 0.8–24). Primary pigmented adrenal nodular disease was diagnosed in 57.1%. Skin manifestations, abnormal somatotroph hormonal tests and thyroid tumors were observed respectively in 58.6, 21.4 and 12.9%. Four% had melanotic shwannomas confirmed by histology. Spinal magnetic resonance imagery revealed lesions for 8.6%. Characteristic multiples calcified tumors on testicular ultrasonography were present in 35% of male patients. Ten% of female patients had surgery for breast myxoma or adenofibroma. Forty% had lesions classified ACR2-3 at mammography. Interestingly, four patients (8%) had breast adenocarcinomas (11.1% of female older than 30years). Eighty-three% of patients had PRKAR1A mutations. Patients carrying the mutation c.709-7del6 (34% of the cohort) had no manifestation or phenotype restricted to adrenal, lentigines and abnormal somatotroph test. Conclusion The penetrance of the disease is high after screening except for patient carrying the c.709-7del6 mutation. This study highlights the importance of an annual follow-up, with especially annual cardiac imaging for patients with history of cardiac myxomas and earlier and regular senologic evaluation. DOI: 10.1530/endoabs.49.GP120
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Submitted on : Tuesday, February 11, 2020 - 2:34:12 PM
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Stéphanie Espiard, Catherine Cardot-Bauters, Gérald Raverot, Marie-Laure Nunes, Françoise Brucker-Davis, et al.. Evaluation of the occurrence of the manifestations of Carney complex in a french cohort of 70 patients during a three years standardized follow-up. 19th European Congress of Endocrinology 2017, May 2017, Lisbon, Portugal. ECE2017 ABSTRACT BOOK, 49, pp.GP120, 2017, ⟨10.1530/endoabs.49.GP120⟩. ⟨hal-02474547⟩



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