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ACRAL MELANOMA WITH SYRINGOTROPISM: IN SITU AND INVASIVE  A: The melanoma i...
Published: 01 February 2024
ACRAL MELANOMA WITH SYRINGOTROPISM: IN SITU AND INVASIVE Figure 14-8 ACRAL MELANOMA WITH SYRINGOTROPISM: IN SITU AND INVASIVE A: The melanoma in situ displays a mixed lentiginous, nested, and pagetoid pattern. It extends along the epithelial stromal junction of eccrine ducts (white arrows). B,C:... More about this image found in ACRAL MELANOMA WITH SYRINGOTROPISM: IN SITU AND INVASIVE A: The melanoma i...
Images
ACRAL LENTIGINOUS MELANOMA IN SITU  There is an irregular proliferation of ...
Published: 01 February 2024
ACRAL LENTIGINOUS MELANOMA IN SITU Figure 14-5 ACRAL LENTIGINOUS MELANOMA IN SITU There is an irregular proliferation of predominantly solitary units of melanocytes of variable density along the dermoepidermal junction (arrows), with extension into eccrine ducts (arrowhead). More about this image found in ACRAL LENTIGINOUS MELANOMA IN SITU There is an irregular proliferation of ...
Images
LACTIFEROUS <span class="search-highlight">DUCTS</span>  At the nipple, the lactiferous <span class="search-highlight">ducts</span> have a very charact...
Published: 01 January 2024
LACTIFEROUS DUCTS Figure 1-12 LACTIFEROUS DUCTS At the nipple, the lactiferous ducts have a very characteristic irregular or corrugated contour on cross section. More about this image found in LACTIFEROUS DUCTS At the nipple, the lactiferous ducts have a very charact...
Images
MAMMARY <span class="search-highlight">DUCT</span> ECTASIA: LATER STAGE  Ectatic <span class="search-highlight">ducts</span> have prominent periductal ...
Published: 01 January 2024
MAMMARY DUCT ECTASIA: LATER STAGE Figure 2-2 MAMMARY DUCT ECTASIA: LATER STAGE Ectatic ducts have prominent periductal fibrosis. The histiocytic component present in the earlier stages is less pronounced, although a lymphocytic infiltrate remains. More about this image found in MAMMARY DUCT ECTASIA: LATER STAGE Ectatic ducts have prominent periductal ...
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MAMMARY <span class="search-highlight">DUCT</span> ECTASIA: EARLY STAGE  A: Low-power view demonstrates dilated d...
Published: 01 January 2024
MAMMARY DUCT ECTASIA: EARLY STAGE Figure 2-1 MAMMARY DUCT ECTASIA: EARLY STAGE A: Low-power view demonstrates dilated ducts with a surrounding chronic inflammatory cell infiltrate and luminal secretion. Histiocytes are apparent in the epithelial lining and duct lumen. B: Intermediate power shows... More about this image found in MAMMARY DUCT ECTASIA: EARLY STAGE A: Low-power view demonstrates dilated d...
Images
SECRETORY CHANGE  A: Low power shows a terminal <span class="search-highlight">duct</span> lobular unit with secr...
Published: 01 January 2024
SECRETORY CHANGE Figure 2-24 SECRETORY CHANGE A: Low power shows a terminal duct lobular unit with secretory change, flocculent luminal secretions, and calcifications. B: High power demonstrates the abundant vacuolated cytoplasm and protuberant nuclei characteristic of this entity. More about this image found in SECRETORY CHANGE A: Low power shows a terminal duct lobular unit with secr...
Images
APOCRINE DUCTAL CARCINOMA IN SITU  A: A <span class="search-highlight">duct</span> is filled with highly atypical...
Published: 01 January 2024
APOCRINE DUCTAL CARCINOMA IN SITU Figure 3-29 APOCRINE DUCTAL CARCINOMA IN SITU A: A duct is filled with highly atypical epithelial cells with abundant granular eosinophilic cytoplasm. B: At high power, the nuclear pleomorphism and prominent nucleoli so characteristic of apocrine DCIS are readil... More about this image found in APOCRINE DUCTAL CARCINOMA IN SITU A: A duct is filled with highly atypical...
Images
LOBULAR CARCINOMA IN SITU  A: At low power, several acini and a <span class="search-highlight">duct</span> are ex...
Published: 01 January 2024
LOBULAR CARCINOMA IN SITU Figure 4-2 LOBULAR CARCINOMA IN SITU A: At low power, several acini and a duct are expanded by a monomorphic proliferation of dyshesive cells. B: High power reveals the cytologic monotony and intracytoplasmic vacuoles characteristic of LCIS. More about this image found in LOBULAR CARCINOMA IN SITU A: At low power, several acini and a duct are ex...
Images
LOBULAR CARCINOMA IN SITU INVOLVING A <span class="search-highlight">DUCT</span>  Occasionally, LCIS confers an i...
Published: 01 January 2024
LOBULAR CARCINOMA IN SITU INVOLVING A DUCT Figure 4-6 LOBULAR CARCINOMA IN SITU INVOLVING A DUCT Occasionally, LCIS confers an irregular or “cloverleaf” contour to the involved duct. Note also the pagetoid growth pattern under the attenuated normal ductal epithelial cell layer. More about this image found in LOBULAR CARCINOMA IN SITU INVOLVING A DUCT Occasionally, LCIS confers an i...
Images
ACINI OF A TERMINAL <span class="search-highlight">DUCT</span> LOBULAR UNIT WITH PROMINENT MYOEPITHELIAL CELLS  T...
Published: 01 January 2024
ACINI OF A TERMINAL DUCT LOBULAR UNIT WITH PROMINENT MYOEPITHELIAL CELLS Figure 4-9 ACINI OF A TERMINAL DUCT LOBULAR UNIT WITH PROMINENT MYOEPITHELIAL CELLS These myoepithelial cells have abundant clear cytoplasm; given their location and prominence, they can be a mimic for the cells of lobular n... More about this image found in ACINI OF A TERMINAL DUCT LOBULAR UNIT WITH PROMINENT MYOEPITHELIAL CELLS T...
Images
ATYPICAL LOBULAR HYPERPLASIA  A: Low-power image of a <span class="search-highlight">duct</span> slightly expande...
Published: 01 January 2024
ATYPICAL LOBULAR HYPERPLASIA Figure 4-20 ATYPICAL LOBULAR HYPERPLASIA A: Low-power image of a duct slightly expanded by the same cells as seen in classic LCIS. The limited extension warrants diagnosis as ALH, rather than LCIS. B: Higher power image better illustrates the cytologic dyshesion and ... More about this image found in ATYPICAL LOBULAR HYPERPLASIA A: Low-power image of a duct slightly expande...
Images
NIPPLE <span class="search-highlight">DUCT</span> PLICATIONS  On occasion, the anatomically normal infoldings of ...
Published: 01 January 2024
NIPPLE DUCT PLICATIONS Figure 7-13 NIPPLE DUCT PLICATIONS On occasion, the anatomically normal infoldings of the nipple ducts can be sectioned in such a way that suggests intraductal papilloma. Careful attention to the location in the breast and recognition of any adjacent nipple ducts aid in app... More about this image found in NIPPLE DUCT PLICATIONS On occasion, the anatomically normal infoldings of ...
Images
COLLAGENOUS SPHERULOSIS  A: Low-power image of a terminal <span class="search-highlight">duct</span> lobular unit...
Published: 01 January 2024
COLLAGENOUS SPHERULOSIS Figure 7-14 COLLAGENOUS SPHERULOSIS A: Low-power image of a terminal duct lobular unit (TDLU) with involvement by collagenous spherulosis. B: At higher power, the rounded spaces with basement membrane are more recognizable. In addition, the spindle cell nuclei of the myoe... More about this image found in COLLAGENOUS SPHERULOSIS A: Low-power image of a terminal duct lobular unit...
Images
ATYPICAL DUCTAL HYPERPLASIA (ADH) IN GYNECOMASTIA  A: This <span class="search-highlight">duct</span> is involved...
Published: 01 January 2024
ATYPICAL DUCTAL HYPERPLASIA (ADH) IN GYNECOMASTIA Figure 10-3 ATYPICAL DUCTAL HYPERPLASIA (ADH) IN GYNECOMASTIA A: This duct is involved by a monotonous proliferation of atypical epithelial cells. B: At higher power, areas of epithelial cell polarization are apparent. The degree of cytologic and... More about this image found in ATYPICAL DUCTAL HYPERPLASIA (ADH) IN GYNECOMASTIA A: This duct is involved...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-14
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
...  Melanoma in situ: most tumors display a lentiginous pattern with a predominance of solitary units of melanocytes at the dermoepidermal junction (acral lentiginous melanoma); some show nested and/or pagetoid scatter  Extension into eccrine ducts is common (syringotropism) Differential Diagnosis...
Images
PAPILLARY DUCTAL CARCINOMA IN SITU  A: Low-power view shows multiple <span class="search-highlight">ducts</span> ...
Published: 01 January 2024
PAPILLARY DUCTAL CARCINOMA IN SITU Figure 7-20 PAPILLARY DUCTAL CARCINOMA IN SITU A: Low-power view shows multiple ducts with papillary proliferations, most of which have delicate fibrovascular cores. At this power, the nuclei of the epithelial proliferation appear hyperchromatic, suggesting atyp... More about this image found in PAPILLARY DUCTAL CARCINOMA IN SITU A: Low-power view shows multiple ducts ...
Images
PAPILLARY DUCTAL CARCINOMA IN SITU  A: Low-power view shows multiple <span class="search-highlight">ducts</span> ...
Published: 01 January 2024
PAPILLARY DUCTAL CARCINOMA IN SITU Figure 7-20 PAPILLARY DUCTAL CARCINOMA IN SITU A: Low-power view shows multiple ducts with papillary proliferations, most of which have delicate fibrovascular cores. At this power, the nuclei of the epithelial proliferation appear hyperchromatic, suggesting atyp... More about this image found in PAPILLARY DUCTAL CARCINOMA IN SITU A: Low-power view shows multiple ducts ...
Images
INVASIVE LOBULAR CARCINOMA  The tumor cells infiltrate around normal <span class="search-highlight">ducts</span> ...
Published: 01 January 2024
INVASIVE LOBULAR CARCINOMA Figure 8-34 INVASIVE LOBULAR CARCINOMA The tumor cells infiltrate around normal ducts and lobules in a “targetoid” pattern; this feature is typical of invasive lobular carcinoma. More about this image found in INVASIVE LOBULAR CARCINOMA The tumor cells infiltrate around normal ducts ...
Images
GYNECOMASTIA  A: At low power, breast <span class="search-highlight">ducts</span>, some with epithelial hyperplas...
Published: 01 January 2024
GYNECOMASTIA Figure 10-1 GYNECOMASTIA A: At low power, breast ducts, some with epithelial hyperplasia, are embedded in a loose, edematous stroma. B: Micropapillary usual ductal hyperplasia (UDH) is present in this duct. A few chronic inflammatory cells are present in the stroma. More about this image found in GYNECOMASTIA A: At low power, breast ducts, some with epithelial hyperplas...
Images
SQUAMOUS METAPLASIA OF LACTIFEROUS <span class="search-highlight">DUCTS</span>  A: Low-power view shows the squam...
Published: 01 January 2024
SQUAMOUS METAPLASIA OF LACTIFEROUS DUCTS Figure 13-1 SQUAMOUS METAPLASIA OF LACTIFEROUS DUCTS A: Low-power view shows the squamous epithelial lining extending deep into the nipple duct. B,C: Intermediate- (B) and higher- (C) power views of the squamous lining of the nipple duct with consequent a... More about this image found in SQUAMOUS METAPLASIA OF LACTIFEROUS DUCTS A: Low-power view shows the squam...