Related Experiment Video
Updated: Nov 30, 2025
Spontaneous Murine Model of Anaplastic Thyroid Cancer
Published on: February 3, 2023
Ectopic ACTH production by thymic and appendiceal neuroendocrine tumors - two case reports
Elżbieta Moszczyńska1, Katarzyna Pasternak-Pietrzak1, Monika Prokop-Piotrkowska1
1Department of Endocrinology and Diabetology, The Children's Memorial Health Institute, Warsaw, Poland.
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.
