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General
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Terminology
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Epidemiology
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Clinical features
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Prognostic features
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Case reports
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Treatment
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Gross description
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Gross images
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Gelatinous or jelly-like cut surface

Ill-defined margins

Soft, gelatinous mass

AFIP

Tumor with positive margin (Fig 1A/1B)

Soft, gelatinous mass

Micro description
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Micro images
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Case of the Week #11

Nuclear atypia is mild

Nuclear grading of intermediate

Abundant extracellular mucin

Abundant mucinous stroma containing epithelial tumor cells with at most mild atypia

Cells in pools of extracellular mucin

Mucin is extracellular

Irregular nests and clusters of tumor cells

Nuclei are plump and vesicular

Anastomosing nests

Well-differentiated tumor cells

Cribriform pattern

Small clusters of tumor cells


Contributed by: Dr. Semir Vranic, University of Sarajevo (Bosnia)



AFIP images:

Clusters of tumor cells in mucinous secretion suround a duct

Alveolar and festoon patterns surrounded

Sparse epithelial component (arrow-DCIS) by mucin

Clusters of tumor cells

Grimelius staining (an agryophilic silver stain) denotes neuroendocrine differentiation



ER+, PR+, chromogranin+and synaptophysin+

Tumor cells are ER+

H&E, CU-18

EMA

H&E



Cytology description
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Cytology images
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Papanicolaou

MGG

Various images

Colloid carcinoma

Videos
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Positive stains
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Negative stains
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Molecular description
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Electron microscopy description
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Electron microscopy images
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Cytoplasmic mucigen granules

Differential diagnosis
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End of Breast malignant, males, children > Carcinoma subtypes > Mucinous / colloid carcinoma



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