Ectopic Cushing Syndrome (ECS): 68Ga-DOTANOC PET/CT Localizes the Site of Ectopic Adrenocorticotropic Hormone Production
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Updated: Feb 7, 2026

Localized RNAi and Ectopic Gene Expression in the Medicinal Leech
Published on: April 17, 2008
Ashwin Singh Parihar1, Bhagwant Rai Mittal1, Shelvin Kumar Vadi1
1From the Departments of Nuclear Medicine and PET, and.
Abstract:
Ectopic Cushing syndrome constitutes approximately 10% of all patients with Cushing syndrome. The clinical features of hypercortisolism result from elevated levels of adrenocorticotropic hormone produced by a tumor. The present case presented with clinical and biochemical parameters suggestive of Cushing syndrome with normal pituitary and adrenals on imaging. Ga-DOTANOC PET/CT done to localize an ectopic adrenocorticotropic hormone-producing tumor revealed metastatic medullary carcinoma of the thyroid as the culprit lesion.
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