Metodología diagnóstica en la identificación del Cushing ectópico

Functional imaging techniques (somatostatin receptor scintigraphy and positron emission tomography) can locate the tumor causing Cushing's syndrome in patients with negative CT and MRI scans. Even after all these techniques, as well as other less frequent and useful procedures have been used, the tumor remains occult in 15-20% of patients. Some of these tumors become clinically evident during long-term follow-up and thus the percentage of ocult tumors decreases with time.