A malignant, ectopic ACTH secreting pancreatic neuroendocrine tumor, associated with Cushing's syndrome. The prognosis is usually poor. The disease is Monarch Disease Ontology entry MONDO_0004333 (pancreatic ACTH-producing neuroendocrine tumor). Also known as: pancreatic ACTH producing NET, pancreatic ACTH producing neuroendocrine tumor, pancreatic ACTH producing neuroendocrine tumour, pancreatic ACTH producing tumor, pancreatic ACTH producing tumour, pancreatic adrenocorticotropic hormone producing tumor, pancreatic adrenocorticotropic hormone producing tumour.