Presence of Donor-Derived DNA in Semen Samples From Cancer Survivors Who Underwent Donor Stem Cell Transplant

You may be eligible if

• DISEASE CHARACTERISTICS:
• Disease in remission
• More than 365 days since prior allogeneic hematopoietic stem cell transplantation with history of full donor engraftment
• Stable complete donor chimerism
• PATIENT CHARACTERISTICS:
• Able to consent and willing to provide a semen sample
• Survivors who present for long-term follow-up appointments in the adult and pediatric stem cell transplant clinic at Vanderbilt University Medical Center
• No known history of infertility or azospermia
• PRIOR CONCURRENT THERAPY:
• See Disease Characteristics
• No history of testicular irradiation ≥ 200 cGy