Prostate - Seminal vesicles

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Prostate

Seminal vesicles

Phyllodes tumor

Reviewers: Komal Arora, M.D., (see Reviewers page)
Revised: 29 July 2012, last major update July 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

Case reports
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● 39 year old man with urinary retention (Pathol Int 2004;54:924)
● 59 year old man with bladder outlet obstruction (J Int Med Res 2010;38:1861)
● 61 year old man with high grade tumor (Cancer 1993;15:2055)

Gross images
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Low grade tumor

Micro description
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● Resembles tumors of breast or prostate
● Cystically dilated or slit-like glands, densely cellular stroma with pleomorphism
● Rare mitotic figures (low grade tumors)

Micro images
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Low grade tumor

Positive stains
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● Stromal cells: vimentin, CD34; focal positive for desmin, alpha-smooth muscle actin, progesterone receptor
● Epithelial cells: keratins AE1/AE3, CAM 5.2, 34&betaE12

End of Prostate > Seminal vesicles > Phyllodes tumor

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