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Prostate

Benign lesions/conditions

Cystadenoma

Reviewers: Komal Arora, M.D., (see Reviewers page)
Revised: 13 April 2012, last major update March 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

General
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● May extend into retroperitoneum and be attached to prostate by a small pedicle
● May be termed ectopic prostate if detached from prostate
● Benign behavior, but may coexist with adenocarcinoma (Pathol Int 2010;60:413)

Case reports
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● 23 year old man with giant multilocular mass (Korean J Urol 2012;53:209)
● 28 and 37 year old men (Am J Surg Pathol 1991;15:131)

Gross images
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Multilocular mass

Micro description
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● Large, multilocular mass of glands/cysts lined by prostate-type epithelium in hypocellular fibrous stroma

Micro images
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Various images

Positive stains
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● PSA, PAP

Differential diagnosis
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● Nodular hyperplasia: hyperplasia of glands and stroma with papillary buds, infoldings and cysts

End of Prostate > Benign lesions/conditions > Cystadenoma

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