Stage A2 prostatic carcinoma: should staging system be reclassified?

Seventy patients with clinically localized prostatic carcinoma were studied for histologic differentiation of primary tumor and the incidence of lymph node metastasis. Also the urologic literature was reviewed regarding the survival of such patients under similar treatment. The results indicate that clinically staged A2 tumors are more aggressive biologically than tumors staged as B1, reaffirming the need for a change in the current staging system. The authors propose reclassification of clinically unsuspected, diffuse carcinoma from the A to the B2 stage.