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General
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Epidemiology
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Sites
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Etiology
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Clinical features
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Case reports
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Treatment
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Clinical images
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Mammogram spot film, courtesy of Dr. Mark R. Wick

Large cystic cavity

Gross description
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Gross images
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Firm tumor with irregular borders

Circumscribed pinkish-white mass

Missing Image Missing Image

Courtesy of Dr. Mark R. Wick

Dense homogenous tumor
with infiltrating margins

Micro description
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Micro images
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Core biopsy

Clusters of tumor cells

Abundant eosinophilic, granular cytoplasm

Missing Image Missing Image Missing Image

Courtesy of Dr. Mark R. Wick

Infiltration into fat

Beneath squamous epithelium (not necessarily breast): H&E and S100

Mild nuclear pleomorphism

Malignant tumor (lung)

With DCIS and invasive ductal carcinoma

S100+

S100+ tumor cells and myoepithelial cells

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S100, courtesy of Dr. Mark R. Wick

PAS+

Cytology description
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Cytology images
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FNAB, courtesy of Dr. Mark R. Wick

Positive stains
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Negative stains
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Electron microscopy descriptions
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Differential diagnosis
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Additional references
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End of Breast - nonmalignant > Benign tumors / changes > Granular cell tumor



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