Ectopic ACTH production is seen in-
Small cell carcinoma is lung
Anaplastic carcinoma of lung
Squamous cell carcinoma of lung
Adenocarcinoma of cerebellum
Reference :Robbins basic pathology 9th edition pg no 222:Cushing syn drome arising as a paraneoplastic phenomenon usually is related to ectopic production of ACTH or ACTHlike poly peptides by cancer cells, as occurs in small cell cancers of the lung
General pathology