Journal of pediatric endocrinology & metabolism : JPEM · 2020
Ectopic ACTH production by thymic and appendiceal neuroendocrine tumors - two case reports.
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Moszczyńska Elżbieta, Pasternak-Pietrzak Katarzyna, Prokop-Piotrkowska Monika, Śliwińska Anna, Szymańska Sylwia, Szalecki Mieczysław
Аннотация
OBJECTIVES: Ectopic adrenocorticotropic syndrome (EAS) causes approximately 10-18% of cases of Cushing's syndrome (CS) in adults, while in children it occurs much less frequently.
CASE PRESENTATION: We report two cases of neuroendocrine tumors (of the thymus and the appendix) in a 12-year-old boy and a 15-year-old girl who presented with the clinical features of CS. Elevated serum cortisol, ACTH, and chromogranin levels were observed in both patients. Diagnoses were made on the basis of a mass in the thymus/appendix region visualized with chest/abdominal CT scan and radiotracer accumulation in scintigraphy in the same areas. Histopathological examinations confirmed the diagnoses of NET.
CONCLUSION: EAS is an extremely rare endocrine disorder. However, it should be taken into consideration in the diagnostic process of every case of ACTH-dependent CS.
CASE PRESENTATION: We report two cases of neuroendocrine tumors (of the thymus and the appendix) in a 12-year-old boy and a 15-year-old girl who presented with the clinical features of CS. Elevated serum cortisol, ACTH, and chromogranin levels were observed in both patients. Diagnoses were made on the basis of a mass in the thymus/appendix region visualized with chest/abdominal CT scan and radiotracer accumulation in scintigraphy in the same areas. Histopathological examinations confirmed the diagnoses of NET.
CONCLUSION: EAS is an extremely rare endocrine disorder. However, it should be taken into consideration in the diagnostic process of every case of ACTH-dependent CS.