Fatty tumors are basically benign tumors. According to the doctor at http://www.hormonehelpny.com , that "side effect" of Spiro was disproven a long time ago. Anyway, fatty tumors are just benign tumors the majority of the time, but be aware that they CAN become malignant. That, however, is rare.

Spiro doesn't help nor cause cancer. It's a blood pressure medication, although it does very little for that.