Head: An extraaxial mass lesion of 1.5 cm diameter is seen within the third ventricle of the brain. The lesion is associated with the chroid plexus, irregular in shape and reveals marked non-uniform contrast enhancement. The lateral ventricles are dilated. The mesencephalic aqueduct and fourth ventricle are normal in size. A second strongly enhancing extraaxial mass lesion is seen in the midline dorsal to the sella turcica. The lesion measures 6 x 6 x 10 mm and exerts a mass effect on the surrounding brain parenchyma including the optic chiasm. Abdomen: The liver reveals moderate generalized enlargement with lobar swelling and mild parenchymal heterogeneity. The vascular architecture of the liver is within normal limits. Both adrenal glands reveal mild symmetric enlargement. Overall assessment: The computed tomography reveals two extraparenchymal intracranial mass lesions – one within the third ventricle and one within the pituitary fossa. The most likely diagnoses are a choroid plexus tumor for the intraventricular and a pituitary macroadenoma for the second mass. Ependymoma, meningioma, cranipharyngioma and round cell neoplasia are possible but less likely differential diagnoses. A moderate secondary hydrocephalus internus occlusivus of the lateral ventricles is noted. Increased intracranial pressure is assumed. The findings of the liver are suggestive for diffuse parenchymal disease such as inflammatory, vacuolar or neoplastic infiltration. Together with the mild symmetric adrenal hyperplasia and the intracranial changes a pituitary dependent hyperadrenocorticism with steroid induced hepatitis is the most likely diagnosis.