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Breast-nonmalignant

Parasites

Echinococcal cyst

 

Reviewer: Hind Nassar, M.D. in January 2009 (see Authors page)

Revised: 1 October 2012, last major update March 2010

Copyright: (c) 2002-2010, PathologyOutlines.com, Inc.

 

Definition

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● See also discussion in Liver-non tumor chapter

● Due to infestation by larval form of Echinococcus granulosus, endemic in sheep rearing countries

● Rare, but consider in differential diagnosis of a breast mass in endemic regions

 

Terminology

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● Also called hydatid cyst

 

Epidemiology

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Etiology

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Life cycle

 

Clinical features

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Prognostic factors

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Case reports

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● 56 year old woman with diagnosis by fine needle aspiration (Rev Med Interne 2007;28:336)

● Patient with masses in pancreas and breast (JOP 2004;5:368)

 

Treatment

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● Surgery plus albendazole or mebendazole before and after surgery

 

Clinical images

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Ruptured cyst and part of

germinative membrane

 

Other images: liver


Micro description (Histopathology)

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Micro images

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Scolices                                Liver: daughter cysts with germinal layer and scolices

 

 

Adrenal gland:

 

Virtual Slides

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Videos

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Cytology description

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Cytology images

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Positive stains

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Negative stains

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Electron microscopy descriptions

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Electron microscopy images

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Molecular / cytogenetics description

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Molecular / cytogenetics images

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Differential Diagnosis

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Additional references

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eMedicine, Wikipedia

 

End of Breast-nonmalignant > Parasites > Echinococcal cyst

 

 

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