A hypeensive patient who is a chroic smoker presented with recurrent hemoptysis. On examination he had cushingoid features. Investigations revealed raised ACTH levels not suppressed by dexamethasone. The single diagnosis which can account for all his symptoms is
Harmonies produced by small cell carcinoma ACTH,ADH,CALCITONIN,GONADOTROPIN. Ref Davidson edition23rd pg 601
Multiple endocrine neoplasia I
Pituitary adenoma
Adrenocoical adenoma
Ectopic ACTH producing tumor
Respiratory system