CHORUS

Collaborative Hypertext of Radiology

Male genital tract

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prostate carcinoma

Stage A

Tumor discovered incidentally in tissue removed for BPH

A1

Small focal involvement of one lobe

A2

Multifocal or diffuse carcinoma

Stage B

Palpable carcinoma confined to prostate on digital exam

B1

Solitary nodule less than 1.5 cm

B2

Diffuse involvement of both lobes

Stage C

Tumor extending through the prostate capsule; no mets

Stage D

Metastases, usually to bone and/or pelvic lymph nodes

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Copyright © 2013, Charles E. Kahn, Jr.