Multiple endocrine neoplasia type IIB identified by magnetic resonance imaging.

Ectopic, epinephrine-secreting pheochromocytomas are rare and difficult to diagnose. In our case, MRI was able to show the lesion, which could not be clearly identified by CT. The histologic specificity provided by T2-weighted images confirmed the biochemical diagnosis of pheochromocytoma. MRI should be considered as an alternative to CT in the diagnosis of familial pheochromocytomas.