Stage D Click on image for enlargement. Stages A and B cancers are considered curable. Stages C and D are treatable, but their prognoses are discouraging. Subdivisions that reflect specific conditions within each category have been added to the Jewett system. This expanded, alphanumeric system is called the Jewett-Whitmore system.
Cancer cells are well differentiated.
A2 - Moderately or poorly differentiated. Cancer cells are present in several locations within the prostate. B2 - More extensive, involving one or both prostate lobes. C1 - Localized, extending outside the prostate capsule. C2 - Tumor causes bladder or urethral obstruction.