[Palliative radiotherapy for a retrobulbar metastasis from a urinary bladder carcinoma].

Retrobulbar metastases from transitional cell carcinoma of the urinary bladder are very rare. This is a case report of palliative radiotherapy successfully reducing acute clinical symptoms such as proptosis, dysfunction of the eye muscles and diplopia in a 50-year-old male patient with a retrobulbar metastasis from transitional cell carcinoma. Radiotherapy quickly ameliorated the proptosis and dysfunction of the eye muscles without side effects. The patient's quality of life was clearly improved.