OUTLINE: Patients receive oral penicillamine on the following schedule: Week 1: once daily Week 2: two times daily Week 3: three times daily Week 4: four times daily Week 5 to end of study: increased dose four times daily. Patients also receive oral pyridoxine daily and maintain a low copper diet (no greater than 0.5 mg/day). This regimen is continued for up to 2 years in the absence of disease progression or unacceptable toxicity. Radiotherapy is administered over 6 weeks, beginning on day 1 of penicillamine therapy. Patients are followed every month (with MRI every 2 months) until death.