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ATYPICAL SPITZ <span class="search-highlight">TUMOR</span>  A: The <span class="search-highlight">tumor</span> is larger and extends more deeply than m...
Published: 01 February 2024
ATYPICAL SPITZ TUMOR Figure 7-22 ATYPICAL SPITZ TUMOR A: The tumor is larger and extends more deeply than most Spitz nevi. There is limited maturation. B: The tumor cells display spitzoid features and nuclear atypia. More about this image found in ATYPICAL SPITZ TUMOR A: The tumor is larger and extends more deeply than m...
Book
Book Cover Image
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
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SPITZ NEVUS  Cytologically, the <span class="search-highlight">tumor</span> cells have a plump spindle cell appea...
Published: 01 February 2024
SPITZ NEVUS Figure 7-12 SPITZ NEVUS Cytologically, the tumor cells have a plump spindle cell appearance and are often polygonal in shape with pink cytoplasm. The nuclei are enlarged and there is an open chromatin pattern. More about this image found in SPITZ NEVUS Cytologically, the tumor cells have a plump spindle cell appea...
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SPITZ MELANOCYTOMA  A: Silhouette of a cellular <span class="search-highlight">tumor</span> with extension into t...
Published: 01 February 2024
SPITZ MELANOCYTOMA Figure 7-23 SPITZ MELANOCYTOMA A: Silhouette of a cellular tumor with extension into the deep dermis and deep bulbous growth. B: Nests of plump spindle and epithelioid cells are present at the dermoepidermal junction and fascicles are seen in the dermis. C: Epithelioid melano... More about this image found in SPITZ MELANOCYTOMA A: Silhouette of a cellular tumor with extension into t...
Images
SPITZ NEVUS WITH <em>ALK</em> REARRANGEMENT  A: The <span class="search-highlight">tumor</span> displays ...
Published: 01 February 2024
SPITZ NEVUS WITH ALK REARRANGEMENT Figure 7-26 SPITZ NEVUS WITH ALK REARRANGEMENT A: The tumor displays a wedge-shaped symmetric silhouette. B: The tumor cells are diffusely immunoreactive for ALK. More about this image found in SPITZ NEVUS WITH ALK REARRANGEMENT A: The tumor displays ...
Images
ATYPICAL SPITZ <span class="search-highlight">TUMOR</span> WITH <em>NTRK1</em> REARRANGEMENT  A: The tumo...
Published: 01 February 2024
ATYPICAL SPITZ TUMOR WITH NTRK1 REARRANGEMENT Figure 7-29 ATYPICAL SPITZ TUMOR WITH NTRK1 REARRANGEMENT A: The tumor shows a slightly asymmetric nodular silhouette. B: The tumor cells are diffusely immunoreactive for NTRK1. C: The tumor cells are densely packed, with little intervening stroma. They display nuclear atypia and limited maturation. Some rosette-like structures are seen. More about this image found in ATYPICAL SPITZ TUMOR WITH NTRK1 REARRANGEMENT A: The tumo...
Images
SCLEROSING BLUE NEVUS  A: Much of the superficial portion of the <span class="search-highlight">tumor</span> is p...
Published: 01 February 2024
SCLEROSING BLUE NEVUS Figure 8-7 SCLEROSING BLUE NEVUS A: Much of the superficial portion of the tumor is paucicellular, with abundant fibrous stroma and little melanin pigment deposition. Its deep portion contains more heavily pigmented and denser aggregates of melanocytes. B: Paucimelanotic sp... More about this image found in SCLEROSING BLUE NEVUS A: Much of the superficial portion of the tumor is p...
Images
CELLULAR BLUE NEVUS  A: Biphasic <span class="search-highlight">tumor</span> with background fibrosis and areas o...
Published: 01 February 2024
CELLULAR BLUE NEVUS Figure 8-14 CELLULAR BLUE NEVUS A: Biphasic tumor with background fibrosis and areas of high and low cell density. B: Dense aggregates of cytologically bland melanocytes with elongated nuclei and pale cytoplasm, with admixed melanophages and adjacent pigmented spindle cells i... More about this image found in CELLULAR BLUE NEVUS A: Biphasic tumor with background fibrosis and areas o...
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CELLULAR BLUE NEVUS  A: Pigmented <span class="search-highlight">tumor</span> with an exophytic surface nodule pe...
Published: 01 February 2024
CELLULAR BLUE NEVUS Figure 8-15 CELLULAR BLUE NEVUS A: Pigmented tumor with an exophytic surface nodule penetrates into the superficial subcutis. B: Fascicles of spindle and epithelioid cells with delicate cytoplasmic granules are present in a fibrous stroma, admixed with clusters of melanophage... More about this image found in CELLULAR BLUE NEVUS A: Pigmented tumor with an exophytic surface nodule pe...
Images
CELLULAR BLUE NEVUS WITH NECROSIS  A: The <span class="search-highlight">tumor</span> nodule has central necrosis...
Published: 01 February 2024
CELLULAR BLUE NEVUS WITH NECROSIS Figure 8-20 CELLULAR BLUE NEVUS WITH NECROSIS A: The tumor nodule has central necrosis and melanosis. B: The area of necrosis is surrounded by aggregates of cytologically bland melanocytes. More about this image found in CELLULAR BLUE NEVUS WITH NECROSIS A: The tumor nodule has central necrosis...
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DEEP PENETRATING NEVUS  A: Pigmented <span class="search-highlight">tumor</span> with symmetric wedge-shaped silh...
Published: 01 February 2024
DEEP PENETRATING NEVUS Figure 9-2 DEEP PENETRATING NEVUS A: Pigmented tumor with symmetric wedge-shaped silhouette involving the dermis with bulbous protrusion into the superficial subcutis. B: The tumor is a compound melanocytic nevus with both a junctional and subepidermal melanocytic prolifer... More about this image found in DEEP PENETRATING NEVUS A: Pigmented tumor with symmetric wedge-shaped silh...
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DEEP PENETRATING NEVUS  A: The <span class="search-highlight">tumor</span> cells are diffusely immunoreactive for...
Published: 01 February 2024
DEEP PENETRATING NEVUS Figure 9-8 DEEP PENETRATING NEVUS A: The tumor cells are diffusely immunoreactive for beta-catenin (same lesion as illustrated in fig. 9-3 ). B: The tumor cells display nuclear expression of beta-catenin. More about this image found in DEEP PENETRATING NEVUS A: The tumor cells are diffusely immunoreactive for...
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LENTIGO MALIGNA MELANOMA IN SITU WITH ADNEXAL INVOLVEMENT  The <span class="search-highlight">tumor</span> cells ...
Published: 01 February 2024
LENTIGO MALIGNA MELANOMA IN SITU WITH ADNEXAL INVOLVEMENT Figure 13-7 LENTIGO MALIGNA MELANOMA IN SITU WITH ADNEXAL INVOLVEMENT The tumor cells proliferate at the dermoepidermal junction and extend into the superficial portion adnexal epithelium (arrows). More about this image found in LENTIGO MALIGNA MELANOMA IN SITU WITH ADNEXAL INVOLVEMENT The tumor cells ...
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ACRAL MELANOMA  The invasive <span class="search-highlight">tumor</span> shows asymmetric pigmentation and an abn...
Published: 01 February 2024
ACRAL MELANOMA Figure 14-10 ACRAL MELANOMA The invasive tumor shows asymmetric pigmentation and an abnormal growth pattern. The tumor cells in the dermis show similar cytologic atypia as those of the intraepidermal in situ melanoma. More about this image found in ACRAL MELANOMA The invasive tumor shows asymmetric pigmentation and an abn...
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NODULAR MELANOMA WITH ASSOCIATED MELANOMA IN SITU  The <span class="search-highlight">tumor</span> displays a pla...
Published: 01 February 2024
NODULAR MELANOMA WITH ASSOCIATED MELANOMA IN SITU Figure 15-3 NODULAR MELANOMA WITH ASSOCIATED MELANOMA IN SITU The tumor displays a plaque-like silhouette. There is melanoma in situ composed of nests and pagetoid melanocytes, but the area of the epidermis involved by in situ melanoma does not ex... More about this image found in NODULAR MELANOMA WITH ASSOCIATED MELANOMA IN SITU The tumor displays a pla...
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POLYPOID NODULAR MELANOMA  A: Ulcerated polypoid <span class="search-highlight">tumor</span>.  B: The melanoma is...
Published: 01 February 2024
POLYPOID NODULAR MELANOMA Figure 15-4 POLYPOID NODULAR MELANOMA A: Ulcerated polypoid tumor. B: The melanoma is ulcerated and composed of amelanotic tumor cells. More about this image found in POLYPOID NODULAR MELANOMA A: Ulcerated polypoid tumor. B: The melanoma is...
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PURE DESMOPLASTIC MELANOMA  A: A diffusely infiltrative fibrosing <span class="search-highlight">tumor</span> has...
Published: 01 February 2024
PURE DESMOPLASTIC MELANOMA Figure 16-5 PURE DESMOPLASTIC MELANOMA A: A diffusely infiltrative fibrosing tumor has lymphocytic aggregates. B: Isolated hyperchromatic spindle cells are dispersed in a fibrous stroma. No dense cellular aggregates are present. More about this image found in PURE DESMOPLASTIC MELANOMA A: A diffusely infiltrative fibrosing tumor has...
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MIXED DESMOPLASTIC MELANOMA  A densely cellular nodule of <span class="search-highlight">tumor</span> cells witho...
Published: 01 February 2024
MIXED DESMOPLASTIC MELANOMA Figure 16-7 MIXED DESMOPLASTIC MELANOMA A densely cellular nodule of tumor cells without intervening fibrous stroma is juxtaposed to a fibrosing tumor cell component of lower cell density, typical of desmoplastic melanoma. More about this image found in MIXED DESMOPLASTIC MELANOMA A densely cellular nodule of tumor cells witho...
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PAPILLOMATOUS NEVOID MELANOMA  A: The <span class="search-highlight">tumor</span> has a verrucous silhouette with...
Published: 01 February 2024
PAPILLOMATOUS NEVOID MELANOMA Figure 17-1 PAPILLOMATOUS NEVOID MELANOMA A: The tumor has a verrucous silhouette with papillomatous outward projections. B: The papillae are packed with dense aggregates of atypical epithelioid melanocytes, some of which are in mitosis. More about this image found in PAPILLOMATOUS NEVOID MELANOMA A: The tumor has a verrucous silhouette with...
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PAPILLOMATOUS NEVOID MELANOMA  A: The surface of the <span class="search-highlight">tumor</span> is papillomatous...
Published: 01 February 2024
PAPILLOMATOUS NEVOID MELANOMA Figure 17-2 PAPILLOMATOUS NEVOID MELANOMA A: The surface of the tumor is papillomatous. B: Rows of densely packed dermal papillae with small epidermal collarettes are present, giving rise to a “puffy shirt” appearance. C: Hypercellular dermal papillae are seen. More about this image found in PAPILLOMATOUS NEVOID MELANOMA A: The surface of the tumor is papillomatous...