Acromegaly is an uncommon disease due to excessive amounts of growth hormone. Benign and malignant tumors have been reported in acromegalic patients. A 41-year-old female patient who had been followed up because of acromegaly by the endocrinology department for two years, was admitted to the hematology department for the evaluation of pancytopenia and the related signs and symptoms. Dopamine agonists were being used till a diagnosis of 'acute promyelocytic leukemia' was made. Occurrence of 'acute promyelocytic leukemia' in the course of acromegaly may have been caused by excessive endogenous GH or may be a coincidental situation.
The Japan Endocrine Society