This contribution describes an unusual case of tumour disease of orbita. In view of bilateral exophthalmus, clinical course and character of the infiltrate during the examination by magnetic resonance and computer tomography, endocrine orbitopathy was taken into consideration.
This diagnosis was also supported by sonographic finding of enlargedthyroid gland.Thecorrect diagnosis of bilateralmetastasis of breast cancer was only established on the basis of histological examination in the course of decompression operation.