Ectopic ACTH syndrome


Appropriate Tests


Due to the short time course, patients may present with pigmentation and electrolyte abnormalities, rather than with classical Cushingoid features.

Electrolytes; Cortisol urine, ACTH.

Dexamethasone suppression test-long, if diagnosis uncertain.

Lung carcinoma, especially

  • Small cell carcinoma

See Lung carcinoma.

Carcinoid tumour


Pancreatic islet cell tumour

See under Pancreatic neoplasm.

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