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MELANOCYTIC NEVUS WITH PSEUDOVASCULAR CHANGES  Some of the melanocytes are ...
Published: 01 February 2024
MELANOCYTIC NEVUS WITH PSEUDOVASCULAR CHANGES Figure 3-12 MELANOCYTIC NEVUS WITH PSEUDOVASCULAR CHANGES Some of the melanocytes are discohesive and create spaces (*) resembling vascular lumens lined by endothelial cells. More about this image found in MELANOCYTIC NEVUS WITH PSEUDOVASCULAR CHANGES Some of the melanocytes are ...
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DESMOPLASTIC SPITZ NEVUS  A: The lesion displays a superficial plaque-like ...
Published: 01 February 2024
DESMOPLASTIC SPITZ NEVUS Figure 7-16 DESMOPLASTIC SPITZ NEVUS A: The lesion displays a superficial plaque-like silhouette of dense fibrous stroma. B: The dermis is fibrotic and paucicellular. C: Amelanotic spindle and epithelioid melanocytes are present in the dermis in association with ectatic... More about this image found in DESMOPLASTIC SPITZ NEVUS A: The lesion displays a superficial plaque-like ...
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ANGIOMATOSIS  A: At low power, dilated <span class="search-highlight">vascular</span> spaces are seen permeating ...
Published: 01 January 2024
ANGIOMATOSIS Figure 11-21 ANGIOMATOSIS A: At low power, dilated vascular spaces are seen permeating the breast parenchyma. B: At high power, bland endothelial cells lining the vascular spaces are apparent. More about this image found in ANGIOMATOSIS A: At low power, dilated vascular spaces are seen permeating ...
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PAPILLARY ENDOTHELIAL HYPERPLASIA  A: At intermediate power, a <span class="search-highlight">vascular</span> pro...
Published: 01 January 2024
PAPILLARY ENDOTHELIAL HYPERPLASIA Figure 11-22 PAPILLARY ENDOTHELIAL HYPERPLASIA A: At intermediate power, a vascular proliferation appears to be composed of anastomosing vessels. B,C: At intermediate (B) and high (C) power, the endothelial cells lining the vascular spaces appear quite plump; so... More about this image found in PAPILLARY ENDOTHELIAL HYPERPLASIA A: At intermediate power, a vascular pro...
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ATYPICAL <span class="search-highlight">VASCULAR</span> LESION  A: At low power, a collection of thin-walled vess...
Published: 01 January 2024
ATYPICAL VASCULAR LESION Figure 11-23 ATYPICAL VASCULAR LESION A: At low power, a collection of thin-walled vessels is appreciated in the superficial dermis. B: At intermediate power, some branching of the vessels is noted. C: High power shows the hyperchromatic nuclei of the endothelial cells,... More about this image found in ATYPICAL VASCULAR LESION A: At low power, a collection of thin-walled vess...
Images
ANGIOSARCOMA  A: Low-power image of an angiosarcoma in which <span class="search-highlight">vascular</span> chann...
Published: 01 January 2024
ANGIOSARCOMA Figure 11-25 ANGIOSARCOMA A: Low-power image of an angiosarcoma in which vascular channels are seen infiltrating through the dermis. B: At intermediate power, the interanastomosing channels as well as the cytologic atypia of the endothelial cells are appreciated. C: At high power, ... More about this image found in ANGIOSARCOMA A: Low-power image of an angiosarcoma in which vascular chann...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-03
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... METAPLASIA A: Silhouette of an intradermal nevus shows fatty changes. B: Melanocytes are admixed with adipose tissue. MELANOCYTIC NEVUS WITH PSEUDOVASCULAR CHANGES Figure 3-12 MELANOCYTIC NEVUS WITH PSEUDOVASCULAR CHANGES Some of the melanocytes are discohesive and create spaces (*) resembling vascular...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 18
Published: 01 January 2024
10.55418/9781933477367-11
ISBN-10: 1-933477-36-9
ISBN: 978-1-933477-36-7
... in appearance from bland to highly pleomorphic  Fibromatosis-like metaplastic carcinoma, spindle cell carcinoma Areas of epithelial differentiation may be present Keratin and/or p63 positive Among the vascular lesions, angiosarcoma is more common in the breast than other body sites, due to the frequent...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-07
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... Morphologic Variant Microscopic Characteristics Angiomatoid Spitz nevus Spitz nevus associated with vascular proliferation with dilated vessels Desmoplastic Spitz nevus Spitz nevus associated with prominent stromal sclerosis Epithelioid Spitz nevus Predominance of large epithelioid melanocytes...
Images
PERILOBULAR HEMANGIOMA  A: Low-power view illustrates a proliferation of sm...
Published: 01 January 2024
PERILOBULAR HEMANGIOMA Figure 11-19 PERILOBULAR HEMANGIOMA A: Low-power view illustrates a proliferation of small vessels adjacent to a terminal duct lobular unit. B: High-power view demonstrates the thin vessel walls and the presence of red blood cells within the vascular lumen. More about this image found in PERILOBULAR HEMANGIOMA A: Low-power view illustrates a proliferation of sm...
Images
IMMUNOSTAINS FOR THE PRESENCE OF MYOEPITHELIAL CELLS  A: The myoepithelial ...
Published: 01 January 2024
IMMUNOSTAINS FOR THE PRESENCE OF MYOEPITHELIAL CELLS Figure 1-6 IMMUNOSTAINS FOR THE PRESENCE OF MYOEPITHELIAL CELLS A: The myoepithelial cell nuclei surrounding the ducts and lobules stain positively with p63; the epithelial cell nuclei are negative. B: Smooth muscle myosin heavy chain stains t... More about this image found in IMMUNOSTAINS FOR THE PRESENCE OF MYOEPITHELIAL CELLS A: The myoepithelial ...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-15
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
..., or hemangioma. Pigmented nodular melanomas may be confused with pigmented basal cell carcinoma, seborrheic keratosis, melanocytic nevi, or metastatic melanoma. Attention to the dermoscopic findings may help in the recognition of nodular melanoma, such as the presence of abnormal vascular structures ( fig. 15-1C...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-23
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... in the academic arena. Blood Vessel and Lymphatic Invasion. Melanoma cells may be seen within the lumens of blood vessels (vascular invasion), a wall of a vessel (vessel wall invasion), or a lymphatic channel (lymphatic invasion). The presence of either blood vessel or lymphatic invasion is an adverse prognostic...
Images
TALL CELL CARCINOMA WITH REVERSED POLARITY  A: TCCRP with the characteristi...
Published: 01 January 2024
TALL CELL CARCINOMA WITH REVERSED POLARITY Figure 7-35 TALL CELL CARCINOMA WITH REVERSED POLARITY A: TCCRP with the characteristic cytomorphology; this example has dense eosinophilic secretions in some of the glandular lumens. At the periphery of the nests, stromal cells and vascular channels giv... More about this image found in TALL CELL CARCINOMA WITH REVERSED POLARITY A: TCCRP with the characteristi...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-12
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... vascular structures may also be seen in SSM but are not specific for this melanoma subtype. Table 12-1 FEATURES OF SUPERFICIAL SPREADING MELANOMA Clinical Features  Most often young to middle-aged Caucasians  Most often intermittently sun-damaged skin (trunk and proximal extremities...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-16
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... and neck region. In some neurotropic variants of DM, multiple small nerve twigs are involved at the periphery of the tumor. Some tumors display prominent schwannian differentiation (“neural transformation”) and become difficult to distinguish from nerve sheath tumors ( 13 ). Angiotropism and vascular...
Images
DILATED VESSELS  Dilated <span class="search-highlight">vascular</span> channels are seen throughout the myocardi...
Published: 15 November 2023
DILATED VESSELS Figure 15-19 DILATED VESSELS Dilated vascular channels are seen throughout the myocardium and at the endocardial-myocardial junction. More about this image found in DILATED VESSELS Dilated vascular channels are seen throughout the myocardi...
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<span class="search-highlight">VASCULAR</span> EHLERS-DANLOS SYNDROME  Multiple chronic aortic dissections (yello...
Published: 15 November 2023
VASCULAR EHLERS-DANLOS SYNDROME Figure 31-15 VASCULAR EHLERS-DANLOS SYNDROME Multiple chronic aortic dissections (yellow asterisks) can be seen, as well as a more recent intimal tear (yellow arrowhead) in this surgical resection specimen. More about this image found in VASCULAR EHLERS-DANLOS SYNDROME Multiple chronic aortic dissections (yello...
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<span class="search-highlight">VASCULAR</span> EHLERS-DANLOS SYNDROME: MUCOID EXTRACELLULAR MATRIX ACCUMULATION  ...
Published: 15 November 2023
VASCULAR EHLERS-DANLOS SYNDROME: MUCOID EXTRACELLULAR MATRIX ACCUMULATION Figure 31-16 VASCULAR EHLERS-DANLOS SYNDROME: MUCOID EXTRACELLULAR MATRIX ACCUMULATION Translamellar MEMA (left) with elastic loss (right) is noted, similar to other types of connective tissue disorder. More about this image found in VASCULAR EHLERS-DANLOS SYNDROME: MUCOID EXTRACELLULAR MATRIX ACCUMULATION ...
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<span class="search-highlight">VASCULAR</span> EHLERS-DANLOS SYNDROME: COIL EMBOLIZATION  A coil is used to embol...
Published: 15 November 2023
VASCULAR EHLERS-DANLOS SYNDROME: COIL EMBOLIZATION Figure 31-17 VASCULAR EHLERS-DANLOS SYNDROME: COIL EMBOLIZATION A coil is used to embolize aneurysms and prevent dissection/rupture. More about this image found in VASCULAR EHLERS-DANLOS SYNDROME: COIL EMBOLIZATION A coil is used to embol...