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Images
COMMON BLUE NEVUS  Small lesion of pigmented fusiform and dendritic melanoc...
Published: 01 February 2024
COMMON BLUE NEVUS Figure 8-3 COMMON BLUE NEVUS Small lesion of pigmented fusiform and dendritic melanocytes and scattered melanophages. These cells are present in the superficial reticular dermis in association with pilar erector smooth muscle bundles. More about this image found in COMMON BLUE NEVUS Small lesion of pigmented fusiform and dendritic melanoc...
Images
NODULAR MELANOMA WITH RHADOMYOSARCOMATOUS DIFFERENTIATION ASSOCIATED WITH A...
Published: 01 February 2024
NODULAR MELANOMA WITH RHADOMYOSARCOMATOUS DIFFERENTIATION ASSOCIATED WITH A GIANT MELANOCYTIC NEVUS Figure 20-6 NODULAR MELANOMA WITH RHADOMYOSARCOMATOUS DIFFERENTIATION ASSOCIATED WITH A GIANT MELANOCYTIC NEVUS A: A large nodular mass is associated with a congenital compound nevus. B: The invas... More about this image found in NODULAR MELANOMA WITH RHADOMYOSARCOMATOUS DIFFERENTIATION ASSOCIATED WITH A...
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...
Images
FIBROADENOMA WITH SMOOTH <span class="search-highlight">MUSCLE</span> DIFFERENTIATION  A: At low power, this lesi...
Published: 01 January 2024
FIBROADENOMA WITH SMOOTH MUSCLE DIFFERENTIATION Figure 5-13 FIBROADENOMA WITH SMOOTH MUSCLE DIFFERENTIATION A: At low power, this lesion appears to have areas of stromal expansion. B,C: At high power, these areas are seen to be expanded by short fascicles (B) and bundles of spindle cells (C) wit... More about this image found in FIBROADENOMA WITH SMOOTH MUSCLE DIFFERENTIATION A: At low power, this lesi...
Images
INVASIVE CARCINOMA AT THE INKED SURFACE  This smooth <span class="search-highlight">muscle</span> myosin heavy ch...
Published: 01 January 2024
INVASIVE CARCINOMA AT THE INKED SURFACE Figure 15-9 INVASIVE CARCINOMA AT THE INKED SURFACE This smooth muscle myosin heavy chain (SMMHC) immunohistochemical stain confirms this focus of tumor to be invasive. Ink is “on tumor” at the upper and lower edges of the field. More about this image found in INVASIVE CARCINOMA AT THE INKED SURFACE This smooth muscle myosin heavy ch...
Images
COMBINED DEEP PENETRATING NEVUS  A: Silhouette of an intradermal melanocyti...
Published: 01 February 2024
COMBINED DEEP PENETRATING NEVUS Figure 10-3 COMBINED DEEP PENETRATING NEVUS A: Silhouette of an intradermal melanocytic nevus with a predominant population of conventional melanocytes superficially (arrows) and a second population of pigmented melanocytes (*) in the mid-reticular dermis surroundi... More about this image found in COMBINED DEEP PENETRATING NEVUS A: Silhouette of an intradermal melanocyti...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-09
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
...: Melanocytes populate the pilar erector muscle. COMPOUND DEEP PENETRATING NEVUS Figure 9-3 COMPOUND DEEP PENETRATING NEVUS A: Wedge-shaped silhouette. B: Nests are present in the epidermis and dermis. C: Some fascicles are elongated, forming donut-like structures. DEEP PENETRATING NEVUS ASSOCIATED...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-02
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... or subcutis, occasionally fascia or muscle  Perivascular, periadnexal, and perineural growth  Adnexal colonization  Splaying (single filing, Indian filing) of melanocytes between undisturbed collagen bundles  Increased terminal hairs  Junctional component may show atypical features, including...
Images
SYRINGOMATOUS TUMOR  A: Low-power view of a punch biopsy from the nipple sh...
Published: 01 January 2024
SYRINGOMATOUS TUMOR Figure 13-10 SYRINGOMATOUS TUMOR A: Low-power view of a punch biopsy from the nipple showing glands and nests of epithelial cells infiltrating between the smooth muscle bundles of the nipple. B,C: Intermediate (B) and higher (C) power images show solid nests and glands with r... More about this image found in SYRINGOMATOUS TUMOR A: Low-power view of a punch biopsy from the nipple sh...
Images
LEIOMYOMA  A: In this low-power image of a punch biopsy of a nipple mass, t...
Published: 01 January 2024
LEIOMYOMA Figure 13-20 LEIOMYOMA A: In this low-power image of a punch biopsy of a nipple mass, the nipple ducts are recognizable because of their serrated contours. Additionally, a bland spindle cell proliferation is present at the upper aspect of the image. B,C: At higher power, the characteri... More about this image found in LEIOMYOMA A: In this low-power image of a punch biopsy of a nipple mass, t...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-01
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... of keratinocytes is seen in many other conditions, which are clinically distinct and rarely prompt a biopsy for diagnostic confirmation. They include Becker nevus (hyperpigmentation associated with hypertrichosis and smooth muscle hamartoma), melisma, the pigmented macules of Albright syndrome (associated...
Images
DERMIS OF NIPPLE  Low- (A) and higher- (B) power views of the dermis of the...
Published: 01 January 2024
DERMIS OF NIPPLE Figure 1-11 DERMIS OF NIPPLE Low- (A) and higher- (B) power views of the dermis of the nipple demonstrating smooth muscle bundles. More about this image found in DERMIS OF NIPPLE Low- (A) and higher- (B) power views of the dermis of the...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 19
Published: 01 February 2024
10.55418/9781933477428-21
ISBN-10: 1-933477-42-3
ISBN: 978-1-933477-42-8
... WITH SARCOMATOID DIFFERENTIATION A: Amelanotic spindle cell melanoma shows focally osseous differentiation. B: The same tumor also showed focal cartilaginous differentiation. There are pitfalls related to overlaps in immunophenotype. Some melanomas, for example, may be positive for smooth muscle actin (SMA...
Images
ACCESSORY NIPPLE  This skin excision specimen from the upper abdomen has a ...
Published: 01 January 2024
ACCESSORY NIPPLE Figure 1-15 ACCESSORY NIPPLE This skin excision specimen from the upper abdomen has a protuberant or dome-shaped appearance; within the dermis are smooth muscle bundles. Nipple ducts, which may be present, are not seen in this section. More about this image found in ACCESSORY NIPPLE This skin excision specimen from the upper abdomen has a ...
Images
MALIGNANT PHYLLODES TUMOR  A: Intermediate-power view demonstrates infiltra...
Published: 01 January 2024
MALIGNANT PHYLLODES TUMOR Figure 5-32 MALIGNANT PHYLLODES TUMOR A: Intermediate-power view demonstrates infiltration of the adjacent adipose tissue. The stroma in this case shows smooth muscle differentiation with scattered, markedly atypical spindle cells and mitoses. B: High-power view highlig... More about this image found in MALIGNANT PHYLLODES TUMOR A: Intermediate-power view demonstrates infiltra...
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 ...
Images
SYRINGOMATOUS TUMOR  A: At low power, predominantly solid nests of tumor ce...
Published: 01 January 2024
SYRINGOMATOUS TUMOR Figure 13-11 SYRINGOMATOUS TUMOR A: At low power, predominantly solid nests of tumor cells are seen percolating through the dermis of the nipple. B–D: Increasing magnification of areas of the tumor showing solid nests of tumor cells (B) with some squamoid features within a fi... More about this image found in SYRINGOMATOUS TUMOR A: At low power, predominantly solid nests of tumor ce...
Images
MICROINVASIVE CARCINOMA  A: Low-power image of a cyst with an adjacent smal...
Published: 01 January 2024
MICROINVASIVE CARCINOMA Figure 8-28 MICROINVASIVE CARCINOMA A: Low-power image of a cyst with an adjacent small, glandular proliferation. B: At higher power, the glandular proliferation appears somewhat infiltrative and the epithelial cells are atypical. C: A smooth muscle myosin heavy chain (S... More about this image found in MICROINVASIVE CARCINOMA A: Low-power image of a cyst with an adjacent smal...
Images
ENCAPSULATED PAPILLARY CARCINOMA  A: Low-power scanning magnification shows...
Published: 01 January 2024
ENCAPSULATED PAPILLARY CARCINOMA Figure 7-23 ENCAPSULATED PAPILLARY CARCINOMA A: Low-power scanning magnification shows a well-circumscribed, encapsulated papillary carcinoma. B: At high power, the epithelial atypia is better appreciated, with cribriform architecture in addition to the underlyin... More about this image found in ENCAPSULATED PAPILLARY CARCINOMA A: Low-power scanning magnification shows...
Images
ENCAPSULATED PAPILLARY CARCINOMA  A: Low-power scanning magnification shows...
Published: 01 January 2024
ENCAPSULATED PAPILLARY CARCINOMA Figure 7-23 ENCAPSULATED PAPILLARY CARCINOMA A: Low-power scanning magnification shows a well-circumscribed, encapsulated papillary carcinoma. B: At high power, the epithelial atypia is better appreciated, with cribriform architecture in addition to the underlyin... More about this image found in ENCAPSULATED PAPILLARY CARCINOMA A: Low-power scanning magnification shows...