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Breast-nonmalignant
Parasites
Cysticercosis
Reviewer: Hind Nassar, M.D. in January 2009 (see Authors page)
Revised: 11 March 2010, last major update March 2010
Copyright: (c) 2002-2010, PathologyOutlines.com, Inc.
Definition
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● Due to larvae of Taenia solium (tapeworm), a major public heath problem in developing countries
Terminology
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Epidemiology
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Sites
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Etiology
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● Acquired by ingestion of tapeworm eggs in contaminated food / water or from hands improperly washed after a bowel movement
Clinical features
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Prognostic factors
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Case reports
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● 15 year old girl with breast lump (Med Trop (Mars) 2007;67:179)
● 63 year old woman with mammographic calcifications (Am J Trop Med Hyg 2008;79:864)
Treatment
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● Excision plus albendazole, possibly steroids
Clinical images
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Gross description (Macroscopy)
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Gross images
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AFIP Fig 31: cyst of Taenia solium Tubular, worm-like structure
in breast biopsy suggestive of calcified parasite
Micro description (Histopathology)
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● Fibrous walled cyst covered by several layers of epithelioid cells with eosinophils and occasional giant cells (Am J Surg Pathol 1999;23:1276)
Micro images
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CNS Eyelid
Drawings
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Virtual Slides
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Videos
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Cytology description
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● Parts of parasite may be identifiable (Acta Cytol 1996;40:653)
● Also spiked spherules and inflammatory cells (Acta Cytol 1989;33:659)
Cytology images
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Larval wall (Pap) Inflammatory cells
(May-Grünwald-Giemsa)
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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● US Centers for Disease Control, eMedicine, Wikipedia
End of Breast-nonmalignant > Parasites > Cysticercosis
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