LENTIGO SIMPLEX Figure 1-4 LENTIGO SIMPLEX There is a slight increase in the density of solitary units of melanocytes associated with hyperpigmented keratinocytes. More about this image found in LENTIGO SIMPLEX There is a slight increase in the density of solitary unit...

COMPOUND DYSPLASTIC NEVUS Figure 4-10 COMPOUND DYSPLASTIC NEVUS Melanocytes are dispersed as solitary units and small nests at the dermoepidermal junction. Most melanocyte nuclei are larger than basilar keratinocyte nuclei. Some of the melanocytes display irregular nuclear contours and/or hyperch... More about this image found in COMPOUND DYSPLASTIC NEVUS Melanocytes are dispersed as solitary units and ...

SUBUNGUAL NEVUS FROM A CHILD Figure 5-4 SUBUNGUAL NEVUS FROM A CHILD A: There is a proliferation of solitary units and nests of melanocytes (arrows) involving the nail matrix associated with hyperpigmentation of epithelial cells. B: The nests (arrows) are well formed and composed of cytologicall... More about this image found in SUBUNGUAL NEVUS FROM A CHILD A: There is a proliferation of solitary units...

DERMAL MELANOCYTOSIS Figure 8-1 DERMAL MELANOCYTOSIS Solitary units of thin fusiform melanocytes and melanophages are dispersed at low cell density in a nonfibrotic superficial dermal stroma. More about this image found in DERMAL MELANOCYTOSIS Solitary units of thin fusiform melanocytes and melan...

MELANOMA IN SITU Figure 12-4 MELANOMA IN SITU This lesion is predominantly composed of solitary units of melanocytes at all layers of the epidermis. More about this image found in MELANOMA IN SITU This lesion is predominantly composed of solitary units o...

INFLAMED COMPOUND MELANOCYTIC NEVUS Figure 12-18 INFLAMED COMPOUND MELANOCYTIC NEVUS A rare solitary melanocyte is seen in the spinous cell layer (arrow) underneath a mound of parakeratosis. The melanocyte shows bland cytologic features. More about this image found in INFLAMED COMPOUND MELANOCYTIC NEVUS A rare solitary melanocyte is seen in ...

LENTIGO MALIGNA MELANOMA IN SITU Figure 13-4 LENTIGO MALIGNA MELANOMA IN SITU There is an increased density of solitary units of melanocytes at the dermoepidermal junction. The melanocytes also display cytologic atypia: their nuclei are larger and more hyperchromatic than the nuclei of adjacent k... More about this image found in LENTIGO MALIGNA MELANOMA IN SITU There is an increased density of solitary...

SUBUNGUAL MELANOMA IN SITU Figure 14-13 SUBUNGUAL MELANOMA IN SITU A: There is a proliferation of solitary units of melanocytes involving the nail bed and nail matrix associated with focal lichenoid inflammation (*). B: The density of melanocytes is above normal, but overall relatively low. C: ... More about this image found in SUBUNGUAL MELANOMA IN SITU A: There is a proliferation of solitary units o...

NEVOID MELANOMA IN SITU Figure 17-9 NEVOID MELANOMA IN SITU A: Junctional proliferation of nests and solitary units of melanocytes. B: Image of the clinical lesion, from which the biopsy was taken. The clinical context proves that the junctional melanocytic proliferation must be melanoma in situ... More about this image found in NEVOID MELANOMA IN SITU A: Junctional proliferation of nests and solitary ...

PERSISTENT MELANOCYTIC NEVUS Figure 6-2 PERSISTENT MELANOCYTIC NEVUS There is a pigmented proliferation of solitary units and nests of varying size and shape, predominantly at the dermoepidermal junction. More about this image found in PERSISTENT MELANOCYTIC NEVUS There is a pigmented proliferation of solitar...

MELANOMA IN SITU Figure 12-3 MELANOMA IN SITU Junctional nests of varying size and shape are present in association with numerous solitary units of melanocytes in the spinous cell layer. More about this image found in MELANOMA IN SITU Junctional nests of varying size and shape are present in...

MELANOMA IN SITU Figure 12-5 MELANOMA IN SITU The melanoma is predominantly composed of junctional nests (thick arrow) with only a few solitary units of melanocytes in the spinous cell layer (thin arrows). More about this image found in MELANOMA IN SITU The melanoma is predominantly composed of junctional nest...

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 ...

MATURATION OF A CMN Figure 2-7 MATURATION OF A CMN Epithelioid melanocytes, some of them pigmented, are arranged in nests in the superficial dermis. With descent into the mid and deep dermis, melanocytes become smaller and splay into fibrous stroma as solitary units. More about this image found in MATURATION OF A CMN Epithelioid melanocytes, some of them pigmented, are a...

LENTIGO MALIGNA MELANOMA Figure 13-13 LENTIGO MALIGNA MELANOMA The epidermis is involved by a high density of melanoma cells. Clusters of atypical melanocytes and solitary units are present in the superficial dermis (arrows), in association with a patchy lymphocytic infiltrate. More about this image found in LENTIGO MALIGNA MELANOMA The epidermis is involved by a high density of me...