Cross section of the kidney

SCALE BAR=1cm
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Clinical summary: 60 year old female with a history of postmenopausal bleeding, now presenting with an adnexal mass.
Figure legend:
Operative procedure: Left nephrectomy.
Tumor location: Superior pole of the bladder.
Tumor size: 5.6 x 5.0 x 3.0 cm.
Tumor characteristics: Well-circumscribed, mahogany brown, firm mass with a central scar.