MRI Imaging of Double Pituitary Microadenoma: A Rare Preoperative Diagnosis

Pituitary adenomas are benign, single, monoclonal slow-growing neoplasms usually related to chemical overproduction. A pituitary adenoma is the third most common intracranial tumor, with the first two being glioma and meningioma. Double pituitary adenoma is an infrequently occurring case and is characterized as occurrence of two adenomas in the single pituitary gland, both having typical immunohistochemical and histopathological highlights. In most of the cases, pituitary adenomas occurring as double adenomas are associated with Cushing's disease. It is further categorized into contiguous and clearly distinct types. Clearly distinct tumors are recognized on neuroradiological imaging. We present imaging findings of a rare case of a double pituitary microadenoma. Early diagnosis of such a rare condition is important and prevents further consequences.