Approach to the patient with primary hypothyroidism accompanied by pituitary hyperplasia and increased serum creatine kinase level / 中华内分泌代谢杂志

ABSTRACT

Pituitary hyperplasia may be found in patients with primary hypothyroidism as the decreased thyroid hormone level attenuates negative feedback effect.Sometimes the enlarged pituitary may be misdiagnosed as a pituitary tumor.Patients with long term untreated hypothyroidism often have extremely high level of serum creatine kinase and thus may be misdiagnosed as suffering from myositis.In order to increase the awareness of the nonspecific symptoms of primary hypothyroidism,this article introduces the diagnosis and treatment of a patient with primary hypothyroidism with raised serum creatine kinase level and pituitary hyperplasia.