Ultra Low Dose Radiation Therapy in Treating Patients With Mycosis Fungoides

This trial is testing whether very low doses of targeted radiation therapy can effectively treat skin lesions caused by mycosis fungoides — a slow-growing type of lymphoma (blood cancer) that appears on the skin — with fewer side effects than higher-dose treatments. **You may be eligible if...** - You have been diagnosed with mycosis fungoides with active skin involvement, confirmed by tissue testing - You have at least one visible, measurable skin lesion - Your skin lesions are no more than 1 cm in height (thickness above the skin surface) in the area being treated - A single patient can have multiple eligible lesions treated at the same time **You may NOT be eligible if...** - Your skin lesions are taller than 1 cm above the skin surface - You do not have any measurable skin disease - You are unable to receive radiation therapy for other health reasons Talk to your doctor to see if this trial is right for you.