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USUAL DUCTAL HYPERPLASIA  In this <span class="search-highlight">case</span>, usual ductal 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...
Images
LOBULAR CARCINOMA IN SITU: TYPE B  In contrast to the prior <span class="search-highlight">case</span>, this exam...
Published: 01 January 2024
LOBULAR CARCINOMA IN SITU: TYPE B Figure 4-4 LOBULAR CARCINOMA IN SITU: TYPE B In contrast to the prior case, this example demonstrates greater variability in nuclear size and shape. More about this image found in LOBULAR CARCINOMA IN SITU: TYPE B In contrast to the prior case, this exam...
Images
HYALINIZED FIBROADENOMA  This <span class="search-highlight">case</span> has less stromal cellularity and more hy...
Published: 01 January 2024
HYALINIZED FIBROADENOMA Figure 5-15 HYALINIZED FIBROADENOMA This case has less stromal cellularity and more hyalinization, as well as several large calcifications. More about this image found in HYALINIZED FIBROADENOMA This case has less stromal cellularity and more hy...
Images
DUCTAL CARCINOMA IN SITU (DCIS) INVOLVING SCLEROSING ADENOSIS  In this <span class="search-highlight">case</span>...
Published: 01 January 2024
DUCTAL CARCINOMA IN SITU (DCIS) INVOLVING SCLEROSING ADENOSIS Figure 6-6 DUCTAL CARCINOMA IN SITU (DCIS) INVOLVING SCLEROSING ADENOSIS In this case of high grade DCIS involving adenosis, the conformation of small highly atypical glands suggests invasive carcinoma. Recognition of the lobulocentric... More about this image found in DUCTAL CARCINOMA IN SITU (DCIS) INVOLVING SCLEROSING ADENOSIS In this case...
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MYOEPITHELIAL CELL STAINS IN ADENOSIS  A: In this <span class="search-highlight">case</span> of lobular carcinoma...
Published: 01 January 2024
MYOEPITHELIAL CELL STAINS IN ADENOSIS Figure 6-11 MYOEPITHELIAL CELL STAINS IN ADENOSIS A: In this case of lobular carcinoma in situ (LCIS) involving adenosis, the arrangement of some of the epithelial cell nests suggests invasive carcinoma rather than LCIS in adenosis. B: A SMMHC stain highligh... More about this image found in MYOEPITHELIAL CELL STAINS IN ADENOSIS A: In this case of lobular carcinoma...
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APOCRINE ADENOSIS  A: The cells in this <span class="search-highlight">case</span> of sclerosing adenosis have ab...
Published: 01 January 2024
APOCRINE ADENOSIS Figure 6-12 APOCRINE ADENOSIS A: The cells in this case of sclerosing adenosis have abundant granular eosinophilic cytoplasm, large round nuclei, and prominent nucleoli. B: The cytologic features, which are those of apocrine metaplasia, are readily recognized at high power. More about this image found in APOCRINE ADENOSIS A: The cells in this case of sclerosing adenosis have ab...
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MICROGLANDULAR ADENOSIS  A: In this <span class="search-highlight">case</span> of microglandular adenosis, the ce...
Published: 01 January 2024
MICROGLANDULAR ADENOSIS Figure 6-16 MICROGLANDULAR ADENOSIS A: In this case of microglandular adenosis, the cells have clear cytoplasm. The small round glands are haphazardly distributed in the stroma. B,C: Intermediate (B) and high (C) power illustrate the bland features of microglandular adeno... More about this image found in MICROGLANDULAR ADENOSIS A: In this case of microglandular adenosis, the ce...
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ATYPICAL MICROGLANDULAR ADENOSIS  A: The nests in this <span class="search-highlight">case</span> of atypical mic...
Published: 01 January 2024
ATYPICAL MICROGLANDULAR ADENOSIS Figure 6-19 ATYPICAL MICROGLANDULAR ADENOSIS A: The nests in this case of atypical microglandular adenosis are composed of cells with clear cytoplasm and variably sized nuclei. B: At higher power, the nuclear atypia is better seen. Note the abundant apoptotic deb... More about this image found in ATYPICAL MICROGLANDULAR ADENOSIS A: The nests in this case of atypical mic...
Images
SECRETORY ADENOSIS  A: Scanning magnification view of a <span class="search-highlight">case</span> of secretory a...
Published: 01 January 2024
SECRETORY ADENOSIS Figure 6-25 SECRETORY ADENOSIS A: Scanning magnification view of a case of secretory adenosis shows the haphazard arrangement of small glands. B: High power shows the simple round glands with luminal secretions resembling microglandular adenosis. C: A p63 stain confirms the p... More about this image found in SECRETORY ADENOSIS A: Scanning magnification view of a case of secretory a...
Images
INVASIVE CARCINOMA  In this <span class="search-highlight">case</span> of solid papillary carcinoma with mucin pr...
Published: 01 January 2024
INVASIVE CARCINOMA Figure 7-32 INVASIVE CARCINOMA In this case of solid papillary carcinoma with mucin production, there are areas of conventional invasive ductal carcinoma (upper left of field), as well as areas with mucinous differentiation (lower left of field). More about this image found in INVASIVE CARCINOMA In this case of solid papillary carcinoma with mucin pr...
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SECRETORY CARCINOMA  A: This <span class="search-highlight">case</span> of secretory carcinoma has areas with pap...
Published: 01 January 2024
SECRETORY CARCINOMA Figure 9-3 SECRETORY CARCINOMA A: This case of secretory carcinoma has areas with papillary and micropapillary architecture. There are secretions present in some microcystic/cribriform spaces. Dense fibrous stroma is seen. B: At higher power, the cells have finely vacuolated ... More about this image found in SECRETORY CARCINOMA A: This case of secretory carcinoma has areas with pap...
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GYNECOMASTIA: LATER STAGE  In this <span class="search-highlight">case</span> of gynecomastia, there is much more...
Published: 01 January 2024
GYNECOMASTIA: LATER STAGE Figure 10-4 GYNECOMASTIA: LATER STAGE In this case of gynecomastia, there is much more stromal fibrosis. More about this image found in GYNECOMASTIA: LATER STAGE In this case of gynecomastia, there is much more...
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PSEUDOANGIOMATOUS STROMAL HYPERPLASIA IN A <span class="search-highlight">CASE</span> OF GYNECOMASTIA
Published: 01 January 2024
PSEUDOANGIOMATOUS STROMAL HYPERPLASIA IN A CASE OF GYNECOMASTIA Figure 10-5 PSEUDOANGIOMATOUS STROMAL HYPERPLASIA IN A CASE OF GYNECOMASTIA More about this image found in PSEUDOANGIOMATOUS STROMAL HYPERPLASIA IN A CASE OF GYNECOMASTIA
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PAGET DISEASE  A: An intermediate power image of another <span class="search-highlight">case</span> of Paget dise...
Published: 01 January 2024
PAGET DISEASE Figure 13-13 PAGET DISEASE A: An intermediate power image of another case of Paget disease with similar appearance of the tumor cells as the prior example: large cells with abundant amphophilic cytoplasm and pleomorphic nuclei, distributed throughout the epidermis of the nipple. B,... More about this image found in PAGET DISEASE A: An intermediate power image of another case of Paget dise...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-11
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... present as a pure tumor phenotype or be part of a combined lesion with an associated conventional melanocytic nevus. It often involves both papillary and reticular dermis, but is sometimes limited to the reticular dermis. In approximately one third of the cases, junctional nests are present. Associated...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-18
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... ). They tend to affect middle-aged or elderly individuals of a median age around 50 years. More than half of the reported cases have occurred in the head and neck region, but these melanomas also affect the trunk and extremities. A common clinical history is that of a blue nevus that has changed. Most tumors...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-17
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... problematic cases a combined approach using immunohistochemistry for PRAME and cytogenetic or various molecular studies may be helpful. NEVOID MELANOMA Figure 17-10 NEVOID MELANOMA A: Silhouette of a raised papule with smooth surface suggesting a possible Miescher nevus. B: The tumor cells are diffusely...
Images
DUCTAL CARCINOMA IN SITU: MICROCALCIFICATIONS AND NECROSIS  Many <span class="search-highlight">cases</span> of D...
Published: 01 January 2024
DUCTAL CARCINOMA IN SITU: MICROCALCIFICATIONS AND NECROSIS Figure 3-24 DUCTAL CARCINOMA IN SITU: MICROCALCIFICATIONS AND NECROSIS Many cases of DCIS are detected through screening mammography due to the presence of microcalcifications. More about this image found in DUCTAL CARCINOMA IN SITU: MICROCALCIFICATIONS AND NECROSIS Many cases of D...
Images
LYMPHOVASCULAR SPACE INVASION MIMICKING DUCTAL CARCINOMA IN SITU  In <span class="search-highlight">cases</span> ...
Published: 01 January 2024
LYMPHOVASCULAR SPACE INVASION MIMICKING DUCTAL CARCINOMA IN SITU Figure 3-37 LYMPHOVASCULAR SPACE INVASION MIMICKING DUCTAL CARCINOMA IN SITU In cases where there is extensive lymphovascular space invasion, the widespread distribution of large, rounded tumor cell nests can give the false impressi... More about this image found in LYMPHOVASCULAR SPACE INVASION MIMICKING DUCTAL CARCINOMA IN SITU In cases ...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-21
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... ). Diagnostic pitfalls are usually related to partial biopsies, in which only the sarcomatoid component is seen. In most cases, review of the completely excised tumor and the use of immunohistochemical studies permit a definitive diagnosis. MELANOMA WITH SARCOMATOID DIFFERENTIATION Figure 21-7 MELANOMA...