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PERSISTENT MELANOCYTIC NEVUS  There is a trizonal <span class="search-highlight">pattern</span> showing a pigment...
Published: 01 February 2024
PERSISTENT MELANOCYTIC NEVUS Figure 6-3 PERSISTENT MELANOCYTIC NEVUS There is a trizonal pattern showing a pigmented junctional melanocytic proliferation overlying a scar, with residual intradermal nevus (arrows) and inflammation at the bottom of the scar. More about this image found in PERSISTENT MELANOCYTIC NEVUS There is a trizonal pattern showing a pigment...
Images
ACRAL MELANOMA IN SITU: NESTED <span class="search-highlight">PATTERN</span>  A: Large nests of melanocytes are p...
Published: 01 February 2024
ACRAL MELANOMA IN SITU: NESTED PATTERN Figure 14-7 ACRAL MELANOMA IN SITU: NESTED PATTERN A: Large nests of melanocytes are present at the dermoepidermal junction. B: The melanocytes are heavily pigmented. They display epithelioid cell features and some discohesion within nests. More about this image found in ACRAL MELANOMA IN SITU: NESTED PATTERN A: Large nests of melanocytes are p...
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ACRAL MELANOMA  Dermoscopically, hyperpigmentation is seen in the ridge are...
Published: 01 February 2024
ACRAL MELANOMA Figure 14-3 ACRAL MELANOMA Dermoscopically, hyperpigmentation is seen in the ridge area (arrow). This pattern is referred to as “parallel ridge pattern.” More about this image found in ACRAL MELANOMA Dermoscopically, hyperpigmentation is seen in the ridge are...
Images
ACRAL NEVUS OF THE FOOT  A: Pigmented macule on the lateral aspect of the s...
Published: 01 February 2024
ACRAL NEVUS OF THE FOOT Figure 5-1 ACRAL NEVUS OF THE FOOT A: Pigmented macule on the lateral aspect of the sole of the foot (arrow). B: Parallel furrow pattern. C: The intradermal melanocytes are cytologically bland and show evidence of maturation (loss of pigment with greater distance from th... More about this image found in ACRAL NEVUS OF THE FOOT A: Pigmented macule on the lateral aspect of the s...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-05
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
...: Parallel furrow pattern. C: The intradermal melanocytes are cytologically bland and show evidence of maturation (loss of pigment with greater distance from the epidermis). D: There is a broad lentiginous junctional growth pattern of cytologically bland melanocytes associated with hyperpigmentation...
Images
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
...Acral melanoma is a melanoma arising in the skin of the palms, soles, or nail apparatus ( 1 , 2 ). The intraepidermal tumor cells of many acral melanomas display a predominant lentiginous, junctional single cell growth pattern. These tumors are referred to as acral lentiginous...
Images
VULVAR NEVUS ASSOCIATED WITH LICHEN SCLEROSUS  The junctional melanocytes s...
Published: 01 February 2024
VULVAR NEVUS ASSOCIATED WITH LICHEN SCLEROSUS Figure 5-6 VULVAR NEVUS ASSOCIATED WITH LICHEN SCLEROSUS The junctional melanocytes show a complex growth pattern and display cellular dyscohesion. More about this image found in VULVAR NEVUS ASSOCIATED WITH LICHEN SCLEROSUS The junctional melanocytes s...
Images
ACRAL MELANOMA  An acral lentiginous melanoma in situ is associated with an...
Published: 01 February 2024
ACRAL MELANOMA Figure 14-11 ACRAL MELANOMA An acral lentiginous melanoma in situ is associated with an infiltrate of amelanotic melanocytes displaying sheet-like and single cell growth patterns. More about this image found in ACRAL MELANOMA An acral lentiginous melanoma in situ is associated with an...
Images
PIGMENTED EPITHELIOID MELANOCYTOMA  The nuclei of the epithelioid melanocyt...
Published: 01 February 2024
PIGMENTED EPITHELIOID MELANOCYTOMA Figure 11-3 PIGMENTED EPITHELIOID MELANOCYTOMA The nuclei of the epithelioid melanocytes (arrows) are round to oval, with a vesicular chromatin pattern. Melanophages (*) with coarse melanin pigment are also present. More about this image found in PIGMENTED EPITHELIOID MELANOCYTOMA The nuclei of the epithelioid melanocyt...
Images
SPITZ NEVUS  Cytologically, the tumor 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...
Images
ACRAL MELANOMA  The invasive tumor 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...
Images
SCALP NEVUS  A: There is a broad junctional nevus.  B: Nests at the dermoep...
Published: 01 February 2024
SCALP NEVUS Figure 5-8 SCALP NEVUS A: There is a broad junctional nevus. B: Nests at the dermoepidermal junction vary in size and shape and are admixed with solitary units of melanocytes, which display a lentiginous pattern and extend into follicular infundibular epithelium. More about this image found in SCALP NEVUS A: There is a broad junctional nevus. B: Nests at the dermoep...
Images
ACRAL NEVUS FROM THE FOOT OF A TEENAGER  A: The silhouette of the lesion sh...
Published: 01 February 2024
ACRAL NEVUS FROM THE FOOT OF A TEENAGER Figure 5-3 ACRAL NEVUS FROM THE FOOT OF A TEENAGER A: The silhouette of the lesion shows a mixed lentiginous junctional and nested growth pattern of melanocytes. B: In the center of the lesion are several melanocytes in the spinous and granular cell layer.... More about this image found in ACRAL NEVUS FROM THE FOOT OF A TEENAGER A: The silhouette of the lesion sh...
Images
SMALL CMN  A: There is a compound melanocytic proliferation with broad supe...
Published: 01 February 2024
SMALL CMN Figure 2-3 SMALL CMN A: There is a compound melanocytic proliferation with broad superficial plaque-like growth. B: Pigmented melanocytes are present as nests and solitary units at the dermoepidermal junction. Amelanotic small epithelioid melanocytes are distributed in the dermis in a ... More about this image found in SMALL CMN A: There is a compound melanocytic proliferation with broad supe...
Images
PAPILLOMATOUS MELANOCYTIC NEVUS  A: The tumor shows an exophytic growth pat...
Published: 01 February 2024
PAPILLOMATOUS MELANOCYTIC NEVUS Figure 17-11 PAPILLOMATOUS MELANOCYTIC NEVUS A: The tumor shows an exophytic growth pattern with several papillae. B: Within each papilla is a fair amount of recognizable stroma, i.e., the stroma has not been replaced by tumor cells. The melanocytes are cytologica... More about this image found in PAPILLOMATOUS MELANOCYTIC NEVUS A: The tumor shows an exophytic growth pat...
Images
COMMON BLUE NEVUS  A: Variably dense aggregates of pigmented melanocytes ar...
Published: 01 February 2024
COMMON BLUE NEVUS Figure 8-4 COMMON BLUE NEVUS A: Variably dense aggregates of pigmented melanocytes are distributed around follicular units occupying a larger area in the reticular dermis. B: There are slender fusiform melanocytes with finely granular cytoplasmic melanin pigment and small oval ... More about this image found in COMMON BLUE NEVUS A: Variably dense aggregates of pigmented melanocytes ar...
Images
SUPERFICIAL SPREADING MELANOMA  A: The silhouette of the lesion is asymmetr...
Published: 01 February 2024
SUPERFICIAL SPREADING MELANOMA Figure 12-2 SUPERFICIAL SPREADING MELANOMA A: The silhouette of the lesion is asymmetric with regard to the growth pattern and pigment distribution. B: In a different section of the same tumor, junctional nests and pagetoid spread of solitary units of atypical mela... More about this image found in SUPERFICIAL SPREADING MELANOMA A: The silhouette of the lesion is asymmetr...
Images
VERRUCOUS ACRAL MELANOMA  A: Acral melanoma is associated with digitated su...
Published: 01 February 2024
VERRUCOUS ACRAL MELANOMA Figure 14-12 VERRUCOUS ACRAL MELANOMA A: Acral melanoma is associated with digitated surface silhouette and hyperkeratosis. B: The in situ melanoma displays a prominent nested growth pattern. C: The invasive melanoma is amelanotic and composed of enlarged epithelioid tu... More about this image found in VERRUCOUS ACRAL MELANOMA A: Acral melanoma is associated with digitated su...
Images
DEEP PENETRATING NEVUS  A: Pigmented tumor 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...