TINEA CORPORIS Figure 24-42 TINEA CORPORIS High-power view of a PAS-stained specimen illustrates the fungal hyphae within the acral stratum corneum. More about this image found in TINEA CORPORIS High-power view of a PAS-stained specimen illustrates the f...

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...

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...

ACRAL MELANOMA Figure 14-9 ACRAL MELANOMA Asymmetric silhouette of the heavily pigmented ulcerated melanoma (seen in fig. 14-6 ). More about this image found in ACRAL MELANOMA Asymmetric silhouette of the heavily pigmented ulcerated me...

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...

ACRAL LENTIGINOUS MELANOMA IN SITU Figure 14-6 ACRAL LENTIGINOUS MELANOMA IN SITU This melanoma displays high cell density, with confluency of melanocytes, nests, and some pagetoid scatter in the spinous cell layer. More about this image found in ACRAL LENTIGINOUS MELANOMA IN SITU This melanoma displays high cell densit...

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...

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 ...

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...

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...

ACRAL MELANOMA Figure 14-1 ACRAL MELANOMA A: There is a large pigmented patch on the heel. B: There is a proliferation of predominantly solitary units of melanocytes at the dermoepidermal junction and focally above. It is associated with junctional hyperpigmentation. C: Some of the melanocytes ... More about this image found in ACRAL MELANOMA A: There is a large pigmented patch on the heel. B: There ...

BLUE NEVUS-LIKE MELANOMA METASTASIS (IN-TRANSIT METASTASIS FROM A PRIMARY ACRAL MELANOMA) Figure 22-8 BLUE NEVUS-LIKE MELANOMA METASTASIS (IN-TRANSIT METASTASIS FROM A PRIMARY ACRAL MELANOMA) A: The silhouette of the tumor simulates a blue nevus. B: An epithelioid tumor cell is seen in mitosis (... More about this image found in BLUE NEVUS-LIKE MELANOMA METASTASIS (IN-TRANSIT METASTASIS FROM A PRIMARY A...

ACRAL LENTIGINOUS MELANOMA IN SITU Figure 14-4 ACRAL LENTIGINOUS MELANOMA IN SITU There is a slight increase in the density of junctional melanocytes, but no confluency. The melanocytes are displayed as solitary units. Some of their nuclei are hyperchromatic and have irregular shapes (white arrow... More about this image found in ACRAL LENTIGINOUS MELANOMA IN SITU There is a slight increase in the densi...

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...

ACRAL NEVUS OF THE PALM Figure 5-2 ACRAL NEVUS OF THE PALM A: Small circumscribed pigmented macule on the palm. B: The shave biopsy shows a small circumscribed proliferation of melanocytes. C: Nests and solitary units of melanocytes are present in the epidermis and dermis. The junctional nests ... More about this image found in ACRAL NEVUS OF THE PALM A: Small circumscribed pigmented macule on the pal...