[Isolated ACTH deficiency and primary thyroid insufficiency in an atopic patient: hypophysitis?]

6 years after surgery for epidermoid lung cancer, a 58-year-old man presented with atopic dermatitis and a high level of IgE, primary hypothyroidism of autoimmune origin, slight hyperprolactinemia and adrenal insufficiency of pituitary origin. ACTH levels were low and unresponsive to CRH. There was no deficiency of the other pituitary hormones and the MRI of the pituitary was normal. The other instances of autoimmune thyroiditis associated with ACTH deficiency are reviewed. The etiology of the deficiency is discussed in the context of a possible hypophysitis.