Ectopic ACTH production is seen in-: (A) Small cell carcinoma is lung, (B) Anaplastic carcinoma of lung, (C) Squamous cell carcinoma of lung, (D) Adenocarcinoma of cerebellum
Answer is A. 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