VANISHING BILE DUCT SYNDROME Figure 9-26 VANISHING BILE DUCT SYNDROME The central portal tract has an absent bile ductule that has disappeared in the chronic inflammation. More about this image found in VANISHING BILE DUCT SYNDROME The central portal tract has an absent bile d...

SCLEROSING CHOLANGITIS DUE TO HIV2 INFECTION Figure 9-25 SCLEROSING CHOLANGITIS DUE TO HIV2 INFECTION Greatly thickened bile ducts. More about this image found in SCLEROSING CHOLANGITIS DUE TO HIV2 INFECTION Greatly thickened bile ducts....

NONCIRRHOTIC PORTAL HYPERTENSION Figure 9-24 NONCIRRHOTIC PORTAL HYPERTENSION A: Trichrome stain of a liver biopsy with obliterated portal vein (bottom left, above bile duct). B: Portal vein sclerosis is highlighted on an elastic van Gieson stain. C: Low-power view of liver shows nodular regene... More about this image found in NONCIRRHOTIC PORTAL HYPERTENSION A: Trichrome stain of a liver biopsy with...

ADENOCARCINOMA IN SITU (AIS) Figure 9-38 ADENOCARCINOMA IN SITU (AIS) A: Biopsy fragment shows numerous endocervical glands with AIS predominantly on the right. B: Glands with AIS in the lower half show depleted mucin, several mitoses, and apoptosis. C: P16 is positive in glands with AIS and is... More about this image found in ADENOCARCINOMA IN SITU (AIS) A: Biopsy fragment shows numerous endocervica...

ADENOCARCINOMA IN SITU (AIS) Figure 9-38 ADENOCARCINOMA IN SITU (AIS) A: Biopsy fragment shows numerous endocervical glands with AIS predominantly on the right. B: Glands with AIS in the lower half show depleted mucin, several mitoses, and apoptosis. C: P16 is positive in glands with AIS and is... More about this image found in ADENOCARCINOMA IN SITU (AIS) A: Biopsy fragment shows numerous endocervica...

ACRAL MELANOMA WITH SYRINGOTROPISM: IN SITU AND INVASIVE Figure 14-8 ACRAL MELANOMA WITH SYRINGOTROPISM: IN SITU AND INVASIVE A: The melanoma in situ displays a mixed lentiginous, nested, and pagetoid pattern. It extends along the epithelial stromal junction of eccrine ducts (white arrows). B,C:... More about this image found in ACRAL MELANOMA WITH SYRINGOTROPISM: IN SITU AND INVASIVE A: The melanoma i...

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 ...

LACTIFEROUS DUCTS Figure 1-12 LACTIFEROUS DUCTS At the nipple, the lactiferous ducts have a very characteristic irregular or corrugated contour on cross section. More about this image found in LACTIFEROUS DUCTS At the nipple, the lactiferous ducts have a very charact...

MAMMARY DUCT ECTASIA: LATER STAGE Figure 2-2 MAMMARY DUCT ECTASIA: LATER STAGE Ectatic ducts have prominent periductal fibrosis. The histiocytic component present in the earlier stages is less pronounced, although a lymphocytic infiltrate remains. More about this image found in MAMMARY DUCT ECTASIA: LATER STAGE Ectatic ducts have prominent periductal ...

MAMMARY DUCT ECTASIA: EARLY STAGE Figure 2-1 MAMMARY DUCT ECTASIA: EARLY STAGE A: Low-power view demonstrates dilated ducts with a surrounding chronic inflammatory cell infiltrate and luminal secretion. Histiocytes are apparent in the epithelial lining and duct lumen. B: Intermediate power shows... More about this image found in MAMMARY DUCT ECTASIA: EARLY STAGE A: Low-power view demonstrates dilated d...

SECRETORY CHANGE Figure 2-24 SECRETORY CHANGE A: Low power shows a terminal duct lobular unit with secretory change, flocculent luminal secretions, and calcifications. B: High power demonstrates the abundant vacuolated cytoplasm and protuberant nuclei characteristic of this entity. More about this image found in SECRETORY CHANGE A: Low power shows a terminal duct lobular unit with secr...

APOCRINE DUCTAL CARCINOMA IN SITU Figure 3-29 APOCRINE DUCTAL CARCINOMA IN SITU A: A duct is filled with highly atypical epithelial cells with abundant granular eosinophilic cytoplasm. B: At high power, the nuclear pleomorphism and prominent nucleoli so characteristic of apocrine DCIS are readil... More about this image found in APOCRINE DUCTAL CARCINOMA IN SITU A: A duct is filled with highly atypical...

LOBULAR CARCINOMA IN SITU Figure 4-2 LOBULAR CARCINOMA IN SITU A: At low power, several acini and a duct are expanded by a monomorphic proliferation of dyshesive cells. B: High power reveals the cytologic monotony and intracytoplasmic vacuoles characteristic of LCIS. More about this image found in LOBULAR CARCINOMA IN SITU A: At low power, several acini and a duct are ex...

LOBULAR CARCINOMA IN SITU INVOLVING A DUCT Figure 4-6 LOBULAR CARCINOMA IN SITU INVOLVING A DUCT Occasionally, LCIS confers an irregular or “cloverleaf” contour to the involved duct. Note also the pagetoid growth pattern under the attenuated normal ductal epithelial cell layer. More about this image found in LOBULAR CARCINOMA IN SITU INVOLVING A DUCT Occasionally, LCIS confers an i...

ACINI OF A TERMINAL DUCT LOBULAR UNIT WITH PROMINENT MYOEPITHELIAL CELLS Figure 4-9 ACINI OF A TERMINAL DUCT LOBULAR UNIT WITH PROMINENT MYOEPITHELIAL CELLS These myoepithelial cells have abundant clear cytoplasm; given their location and prominence, they can be a mimic for the cells of lobular n... More about this image found in ACINI OF A TERMINAL DUCT LOBULAR UNIT WITH PROMINENT MYOEPITHELIAL CELLS T...

ATYPICAL LOBULAR HYPERPLASIA Figure 4-20 ATYPICAL LOBULAR HYPERPLASIA A: Low-power image of a duct slightly expanded by the same cells as seen in classic LCIS. The limited extension warrants diagnosis as ALH, rather than LCIS. B: Higher power image better illustrates the cytologic dyshesion and ... More about this image found in ATYPICAL LOBULAR HYPERPLASIA A: Low-power image of a duct slightly expande...

NIPPLE DUCT PLICATIONS Figure 7-13 NIPPLE DUCT PLICATIONS On occasion, the anatomically normal infoldings of the nipple ducts can be sectioned in such a way that suggests intraductal papilloma. Careful attention to the location in the breast and recognition of any adjacent nipple ducts aid in app... More about this image found in NIPPLE DUCT PLICATIONS On occasion, the anatomically normal infoldings of ...