Incidentaloma is defined as an asymptomatic mass lesion that shows no associated hormonal hyper- or hyposecretion. Adrenal incidentaloma is also a typical mass detection of which is known to have increased with improved imaging techniques such as CT or MRI. We report a case in which a pituitary incidentaloma is accompanied by an adrenal incidentaloma. The 65-year-old patient was admitted due to oropharyngeal pain, and had a medical history that included an operation for rectal cancer. The adrenal tumor had no function, but left adrenalectomy was performed for the evaluation of rectal cancer recurrence, which was diagnosed pathologically as a benign adrenocortical nodule. In our experience we have found that, in the case of multiple incidentalomas, it is important to evaluate the function or malignancy status of each.