Ovary - nontumor - Developmental cysts

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Ovary - nontumor

Non-neoplastic cysts / other

Developmental cysts

Reviewer: Mohiedean Ghofrani, M.D., Southwest Washington Medical Center, Vancouver, WA (see Reviewers page)
Revised: 9 August 2011, last major update Augst 2011
Copyright: (c) 2002-2011, PathologyOutlines.com, Inc.

Definition
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● Benign ovarian cysts arising from mesonephric (wolffian) or paramesonephric (mullerian) remnants

Sites
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● Common in ovarian hilus

Case reports
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● With serous borderline tumor (Histopathology 1983;7:601)

Treatment
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● Excise if diagnosis is in question, the cyst persists, or patient is symptomatic (Semin Pediatr Surg 2005;14:78)
● Laparoscopy is favored treatment
● Goal is to spare functional ovary as much as technically possible
● Simple cysts are fenestrated
● Complex or functional cysts are excised with preservation of remaining ovary

Micro description
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● Cysts of mesonephric (wolffian) origin: cuboidal or low columnar, nonciliated epithelium, on well developed basement membrane; have smooth muscle coat
● Cysts of paramesonephric (mullerian) origin: resemble fallopian tube; taller, often ciliated epithelium with larger nuclei, inconspicuous basement membrane; have smooth muscle coat

End of Ovary - nontumor > Non-neoplastic cysts / other > Developmental cysts

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