Abstract
We report a 54-year-old Japanese woman with enlargement of her hands and feet, and tachycardia over the previous 3 years. She had a TSH- and GH-producing pituitary adenoma 3.5 × 3.0 × 2.0 cm. A bromocriptine test was performed. Bromocriptine was slightly effective for GH inhibition, but, she complained of headaches, nausea, and impaired vision 24 hours after bromocriptine administration. MRI examination showed heterogeneous mixed intensity lesions in the pituitary adenoma, compatible with pituitary apoplexy. The tumor was removed by the transsphenoidal approach 24 hours later, and histologic examination confirmed the diagnosis of pituitary apoplexy. Although pituitary apoplexy associated with bromocriptine is very rare, this case suggests a casual relationship is possible in some instances.
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