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USUAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  In this case, usual <span class="search-highlight">ductal</span> hyperplasia (UDH) repr...
Published: 01 January 2024
USUAL DUCTAL HYPERPLASIA Figure 3-6 USUAL DUCTAL HYPERPLASIA In this case, usual ductal hyperplasia (UDH) represented the pathologic correlate for a non-mass-enhancing lesion detected on magnetic resonance imaging (MRI). As is appreciated in this low-power image, the area of involvement by UDH is... More about this image found in USUAL DUCTAL HYPERPLASIA In this case, usual ductal hyperplasia (UDH) repr...
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<span class="search-highlight">DUCTAL</span> CARCINOMA IN SITU MIMICKING USUAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  A: At first gl...
Published: 01 January 2024
DUCTAL CARCINOMA IN SITU MIMICKING USUAL DUCTAL HYPERPLASIA Figure 3-35 DUCTAL CARCINOMA IN SITU MIMICKING USUAL DUCTAL HYPERPLASIA A: At first glance, nuclear variability and cellular heterogeneity can give the impression of UDH in some examples of DCIS. The presence of necrosis favors DCIS, but... More about this image found in DUCTAL CARCINOMA IN SITU MIMICKING USUAL DUCTAL HYPERPLASIA A: At first gl...
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INVASIVE <span class="search-highlight">DUCTAL</span> CARCINOMA AND <span class="search-highlight">DUCTAL</span> CARCINOMA IN SITU (DCIS)  A: Frequentl...
Published: 01 January 2024
INVASIVE DUCTAL CARCINOMA AND DUCTAL CARCINOMA IN SITU (DCIS) Figure 8-17 INVASIVE DUCTAL CARCINOMA AND DUCTAL CARCINOMA IN SITU (DCIS) A: Frequently, DCIS is seen admixed and/or surrounding invasive breast carcinomas. The DCIS is recognizable as having more rounded tumor cell nests. B: High-pow... More about this image found in INVASIVE DUCTAL CARCINOMA AND DUCTAL CARCINOMA IN SITU (DCIS) A: Frequentl...
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LOBULAR CARCINOMA IN SITU AND LOW NUCLEAR GRADE <span class="search-highlight">DUCTAL</span> CARCINOMA IN SITU AN...
Published: 01 January 2024
LOBULAR CARCINOMA IN SITU AND LOW NUCLEAR GRADE DUCTAL CARCINOMA IN SITU AND/OR ATYPICAL DUCTAL HYPERPLASIA (SOLID PATTERN) Figure 4-11 LOBULAR CARCINOMA IN SITU AND LOW NUCLEAR GRADE DUCTAL CARCINOMA IN SITU AND/OR ATYPICAL DUCTAL HYPERPLASIA (SOLID PATTERN) These can be difficult to distinguish... More about this image found in LOBULAR CARCINOMA IN SITU AND LOW NUCLEAR GRADE DUCTAL CARCINOMA IN SITU AN...
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FIBROADENOMA WITH ATYPICAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  This fibroadenoma has a sing...
Published: 01 January 2024
FIBROADENOMA WITH ATYPICAL DUCTAL HYPERPLASIA Figure 5-7 FIBROADENOMA WITH ATYPICAL DUCTAL HYPERPLASIA This fibroadenoma has a single focus of atypical ductal hyperplasia, recognizable as a monomorphic epithelial proliferation with polarization of the cells around cribriform spaces and microacini... More about this image found in FIBROADENOMA WITH ATYPICAL DUCTAL HYPERPLASIA This fibroadenoma has a sing...
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FIBROADENOMA WITH <span class="search-highlight">DUCTAL</span> CARCINOMA IN SITU  A: At low power, the epithelial...
Published: 01 January 2024
FIBROADENOMA WITH DUCTAL CARCINOMA IN SITU Figure 5-8 FIBROADENOMA WITH DUCTAL CARCINOMA IN SITU A: At low power, the epithelial areas within this fibroadenoma are more proliferative and show marked cytologic atypia. B: At high power, the ducts are expanded by a highly atypical epithelial prolif... More about this image found in FIBROADENOMA WITH DUCTAL CARCINOMA IN SITU A: At low power, the epithelial...
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USUAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  A: At this intermediate-power view, the heterogen...
Published: 01 January 2024
USUAL DUCTAL HYPERPLASIA Figure 3-7 USUAL DUCTAL HYPERPLASIA A: At this intermediate-power view, the heterogeneity of the epithelial cells within the solid proliferation is appreciated. Slit-like spaces at the periphery of the involved duct are seen. B: At higher power, the variability in nuclea... More about this image found in USUAL DUCTAL HYPERPLASIA A: At this intermediate-power view, the heterogen...
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USUAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  This image illustrates the slit-like spaces so ch...
Published: 01 January 2024
USUAL DUCTAL HYPERPLASIA Figure 3-8 USUAL DUCTAL HYPERPLASIA This image illustrates the slit-like spaces so characteristic of UDH. Note the preferential distribution at the periphery of the involved duct. In this example, the myoepithelial cell layer is pronounced because the cytoplasm is clear. More about this image found in USUAL DUCTAL HYPERPLASIA This image illustrates the slit-like spaces so ch...
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USUAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  A: Low-power image shows the variability in size,...
Published: 01 January 2024
USUAL DUCTAL HYPERPLASIA Figure 3-9 USUAL DUCTAL HYPERPLASIA A: Low-power image shows the variability in size, shape, and placement of the epithelial cells in the involved ducts. Epithelial cell polarization is absent around the spaces present. B: High-power view depicts the heterogeneity of nuc... More about this image found in USUAL DUCTAL HYPERPLASIA A: Low-power image shows the variability in size,...
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USUAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  A: UDH with swirling of the epithelial cells in t...
Published: 01 January 2024
USUAL DUCTAL HYPERPLASIA Figure 3-10 USUAL DUCTAL HYPERPLASIA A: UDH with swirling of the epithelial cells in the center of the proliferation. B: High-power image reveals the heterogeneity of the epithelial cells and nuclei, as well as the swirling and streaming of the cells in the center of the... More about this image found in USUAL DUCTAL HYPERPLASIA A: UDH with swirling of the epithelial cells in t...
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USUAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  The epithelial cells in the bridge across a space...
Published: 01 January 2024
USUAL DUCTAL HYPERPLASIA Figure 3-11 USUAL DUCTAL HYPERPLASIA The epithelial cells in the bridge across a space involved by UDH are attenuated. More about this image found in USUAL DUCTAL HYPERPLASIA The epithelial cells in the bridge across a space...
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USUAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA WITH NECROSIS  A: Low-power image of an epithelial...
Published: 01 January 2024
USUAL DUCTAL HYPERPLASIA WITH NECROSIS Figure 3-12 USUAL DUCTAL HYPERPLASIA WITH NECROSIS A: Low-power image of an epithelial proliferation with central necrosis. The necrosis may raise concern for ductal carcinoma in situ (DCIS), however, the epithelial cells are not atypical and retain the usua... More about this image found in USUAL DUCTAL HYPERPLASIA WITH NECROSIS A: Low-power image of an epithelial...
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USUAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  A: Low-power view of UDH with a micropapillary or...
Published: 01 January 2024
USUAL DUCTAL HYPERPLASIA Figure 3-13 USUAL DUCTAL HYPERPLASIA A: Low-power view of UDH with a micropapillary or gynecomastoid pattern. B: At higher power, the “pinched tips” of the micropapillations are better appreciated and the variability of the epithelial cells is more apparent. As well, the... More about this image found in USUAL DUCTAL HYPERPLASIA A: Low-power view of UDH with a micropapillary or...
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USUAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  A–C: Hematoxylin and eosin (H&amp;E) (A), CK5/6 i...
Published: 01 January 2024
USUAL DUCTAL HYPERPLASIA Figure 3-14 USUAL DUCTAL HYPERPLASIA A–C: Hematoxylin and eosin (H&E) (A), CK5/6 immunostain (B), and estrogen receptor (ER) (C). In UDH, both CK5/6 and ER display a heterogeneous pattern of expression in the epithelial cells and nuclei respectively: some cells stain ... More about this image found in USUAL DUCTAL HYPERPLASIA A–C: Hematoxylin and eosin (H&E) (A), CK5/6 i...
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USUAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  A–C: Hematoxylin and eosin (H&amp;E) (A), CK5/6 i...
Published: 01 January 2024
USUAL DUCTAL HYPERPLASIA Figure 3-14 USUAL DUCTAL HYPERPLASIA A–C: Hematoxylin and eosin (H&E) (A), CK5/6 immunostain (B), and estrogen receptor (ER) (C). In UDH, both CK5/6 and ER display a heterogeneous pattern of expression in the epithelial cells and nuclei respectively: some cells stain ... More about this image found in USUAL DUCTAL HYPERPLASIA A–C: Hematoxylin and eosin (H&E) (A), CK5/6 i...
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ATYPICAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  A: The space in the lower center portion of th...
Published: 01 January 2024
ATYPICAL DUCTAL HYPERPLASIA Figure 3-15 ATYPICAL DUCTAL HYPERPLASIA A: The space in the lower center portion of the field shows rigid, cribriform-like architecture; the cells within the proliferation are evenly spaced and polarize toward the lumens created by the bridges and arcades. B: The cell... More about this image found in ATYPICAL DUCTAL HYPERPLASIA A: The space in the lower center portion of th...
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ATYPICAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA: CRIBRIFORM PATTERN  The epithelial cells are m...
Published: 01 January 2024
ATYPICAL DUCTAL HYPERPLASIA: CRIBRIFORM PATTERN Figure 3-16 ATYPICAL DUCTAL HYPERPLASIA: CRIBRIFORM PATTERN The epithelial cells are monomorphic and oriented or polarized toward the lumens within the proliferation. Note the presence of microcalcifications associated with the ADH. More about this image found in ATYPICAL DUCTAL HYPERPLASIA: CRIBRIFORM PATTERN The epithelial cells are m...
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ATYPICAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA: MICROPAPILLARY PATTERN  A: At low power, the m...
Published: 01 January 2024
ATYPICAL DUCTAL HYPERPLASIA: MICROPAPILLARY PATTERN Figure 3-17 ATYPICAL DUCTAL HYPERPLASIA: MICROPAPILLARY PATTERN A: At low power, the micropapillary architecture of the epithelial lining of several acini in this TDLU is apparent. Note also the hyperchromasia of the cells. B: At higher power, ... More about this image found in ATYPICAL DUCTAL HYPERPLASIA: MICROPAPILLARY PATTERN A: At low power, the m...
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ATYPICAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA: MICROPAPILLARY PATTERN  The nuclei are the sam...
Published: 01 January 2024
ATYPICAL DUCTAL HYPERPLASIA: MICROPAPILLARY PATTERN Figure 3-18 ATYPICAL DUCTAL HYPERPLASIA: MICROPAPILLARY PATTERN The nuclei are the same size throughout the micropapillations, which contrasts with the smaller, more pyknotic nuclei seen at the tips of the micropapillations in gynecomastoid UDH.... More about this image found in ATYPICAL DUCTAL HYPERPLASIA: MICROPAPILLARY PATTERN The nuclei are the sam...
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ATYPICAL <span class="search-highlight">DUCTAL</span> HYPERPLASIA  The central portion of this epithelial prolife...
Published: 01 January 2024
ATYPICAL DUCTAL HYPERPLASIA Figure 3-19 ATYPICAL DUCTAL HYPERPLASIA The central portion of this epithelial proliferation is characterized by a monomorphic cell population with a cribriform architecture, i.e., features of low nuclear grade DCIS. However, at the periphery of the involved space is a... More about this image found in ATYPICAL DUCTAL HYPERPLASIA The central portion of this epithelial prolife...