BREAST NEVUS Figure 5-7 BREAST NEVUS A: The compound melanocytic nevus shows nests of varying size and shape with a junctional shoulder. B: Large nests of melanocytes are seen with cell dyscohesion (arrow). More about this image found in BREAST NEVUS A: The compound melanocytic nevus shows nests of varying size...

PLAQUE-TYPE BLUE NEVUS INVOLVING BREAST TISSUE Figure 8-23 PLAQUE-TYPE BLUE NEVUS INVOLVING BREAST TISSUE A: Diffuse involvement of the stroma of the breast by pigmented melanocytes. B: The melanocytes display spindle, epithelioid, and dendritic features and are cytologically bland. More about this image found in PLAQUE-TYPE BLUE NEVUS INVOLVING BREAST TISSUE A: Diffuse involvement of t...

LACTATING BREAST Figure 1-13 LACTATING BREAST A: In the lactating breast, the lobules expand and have numerous acini. B: The epithelial cells are enlarged, have prominent cytoplasmic vacuolization; there may be hobnailing of the nuclei into lumens of the acini. The myoepithelial cells become att... More about this image found in LACTATING BREAST A: In the lactating breast, the lobules expand and have n...

MICROARCHITECTURE OF NORMAL ADULT FEMALE BREAST TISSUE Figure 1-1 MICROARCHITECTURE OF NORMAL ADULT FEMALE BREAST TISSUE A portion of an extralobular duct (arrow), terminal duct, and lobules, in turn composed of acini, is seen. More about this image found in MICROARCHITECTURE OF NORMAL ADULT FEMALE BREAST TISSUE A portion of an ext...

BREAST LOBULES Figure 1-2 BREAST LOBULES Looser intralobular stroma and denser collagenous inter lobular stroma are seen. More about this image found in BREAST LOBULES Looser intralobular stroma and denser collagenous inter lob...

ACINI OF THE BREAST Figure 1-4 ACINI OF THE BREAST The inner epithelial cell layer and the outer myoepithelial cell layer are depicted. The myoepithelial cells can be variably prominent; in this case they have abundant clear cytoplasm. More about this image found in ACINI OF THE BREAST The inner epithelial cell layer and the outer myoepith...

LOBULAR INVOLUTION IN POSTMENOPAUSAL BREAST Figure 1-14 LOBULAR INVOLUTION IN POSTMENOPAUSAL BREAST A few scattered atrophic acini are dispersed in either fibrotic (A) or fatty stroma (B). More about this image found in LOBULAR INVOLUTION IN POSTMENOPAUSAL BREAST A few scattered atrophic acini...

POLYACRYLAMIDE HYDROGEL Figure 2-15 POLYACRYLAMIDE HYDROGEL A: Low-power image of a breast core biopsy with pools of bluish material and calcifications present in the adipose tissue. B: On higher power, giant cells can be seen associated with the “mucin-like” material. Note the absence of epithe... More about this image found in POLYACRYLAMIDE HYDROGEL A: Low-power image of a breast core biopsy with po...

RADIATION EFFECT Figure 2-16 RADIATION EFFECT A: At lower power, an irradiated breast demonstrates atrophic lobules with thickened basement membrane. Hyperchromatic nuclei are apparent in the cells within the lobules even at this power. B: On high power, this lobule has scattered epithelial cell... More about this image found in RADIATION EFFECT A: At lower power, an irradiated breast demonstrates atro...

CYST WALL Figure 2-20 CYST WALL A core needle biopsy specimen of a breast cyst shows fibrosis of the cyst wall and the attenuated epithelial lining, particularly where it runs along the edges of the core biopsy sample. More about this image found in CYST WALL A core needle biopsy specimen of a breast cyst shows fibrosis of...

SQUAMOUS METAPLASIA Figure 2-23 SQUAMOUS METAPLASIA Squamous metaplasia may be seen in a variety of breast lesions; this example involves an intraductal papilloma. More about this image found in SQUAMOUS METAPLASIA Squamous metaplasia may be seen in a variety of breast...

INVASIVE BREAST CARCINOMA, NO SPECIAL TYPE (NST), GRADE 1 Figure 8-1 INVASIVE BREAST CARCINOMA, NO SPECIAL TYPE (NST), GRADE 1 This low-power image shows a tumor composed of well-formed tubules with cells that have round, regular nuclei; no mitoses are present. More about this image found in INVASIVE BREAST CARCINOMA, NO SPECIAL TYPE (NST), GRADE 1 This low-power i...