Head & neck cancer in transplant patients: For better or worse?

Transplant patients who develop head and neck cancer are more likely to be non-smokers and non-drinkers, and less likely than their non-transplant counterparts to survive past one year of diagnosis, according to a new study from Henry Ford Hospital in Detroit.

As part of a 20-year review, Henry Ford researchers found cancers of the throat, tonsils and mouth may be more aggressive in transplant recipients as the result of long-term immunosuppressive therapy required to prevent solid organ rejection.

Transplant patients in the study who developed skin cancer in the head and neck region were more likely to have multiple lesions, compared to the general public. In all, 2.6% of transplant patients in the study developed some form of head and neck cancer.

While the risk for developing head and neck cancer is small, the study serves as an important reminder to all transplant recipients to be vigilant about any changes to their skin, as well as persistent sore throat, ear pain or swallowing issues – all signs of head and neck cancer.

"The benefits of organ transplantation and immunosuppressive therapy still outweigh the risk of transplant patients developing head and neck cancer," says study author Robert Deeb, M.D., with the Department of Otolaryngology-Head & Neck Surgery at Henry Ford.

"Still, our study highlights that head and neck cancer arising in transplant patients warrants the need for regular screenings and aggressive treatment."

The study will be presented Jan. 28 in Miami Beach at the annual Triological Society's Combined Sections Meeting.

More effective immunosuppressive therapies for transplant patients have greatly improved graft and recipient survival rates. But with longer survival, there has been an increase in long-term complications from immunosuppression, including head and neck cancer.

In fact, head and neck cancers account for 4 percent to 6 percent of all post-transplant malignancies.

The challenge is that transplant patients who develop head and neck cancer may have to consider forgoing immunosuppressive therapy in order to treat the cancer. But halting immunosupression could lead to organ failure, leaving patients with a very difficult decision: treat the cancer or save the organ. Transplant patients with most forms of skin cancer typically do not need to stop immunosuppressive therapy.

To gain a better understanding of post-transplant head and neck cancer, Dr. Deeb and Vanessa G. Schweitzer, M.D., conducted a comprehensive review of the 3,639 transplants that took place at the Transplant Institute at Henry Ford Hospital from January 1990 through December 2011.

Using electronic medical records, the researchers were able to track the incidence of head and neck cancer following solid organ transplantation during a 20-year period.