How is a Pituitary Macrotumor Treated?
While surgical removal of pituitary tumors is feasible in humans, this area is not nearly as accessible in dogs. This means that radiation therapy is the only effective treatment available for pituitary macrotumors. Radiation therapy is performed usually 2 to 3 times weekly for 4 to 6 weeks and is an expensive undertaking in the Los Angeles area (usually $3000-$5000). Of dogs that receive radiation therapy 70% will have good improvement as a result; half of those will have rapid improvement and the other half will improve in the month or two following the course of therapy. Radiation therapy is not without complication. Common problems associated with this treatment include loss of skin and hair pigment in the area irradiated, hearing loss, and sometimes problems with tear production in the eyes. Many dogs experience a resolution of their Cushings disease as the pituitary tumor responds as well, but plan to have to continue treatment for Cushings disease despite radiation. Early detect
