Keywords

Frequently Asked Questions

  1. 25.1.

    Summary of applications and limitations of useful markers (Table 25.1)

    Table 25.1 Summary of applications and limitations of useful markers
  2. 25.2.

    Summary of useful markers for common tumors (Table 25.2)

    Table 25.2 Summary of useful markers for common tumors
  3. 25.3.

    Markers for normal pancreatic ducts and acini (Table 25.3)

    Table 25.3 Markers for normal pancreatic ducts and acini
  4. 25.4.

    Markers for ductal adenocarcinoma of the pancreas (Table 25.4)

    Table 25.4 Markers for ductal adenocarcinoma of the pancreas
    Fig. 25.1
    figure 1

     Invasive ductal adenocarcinoma shows loss of expression of pVHL, and normal ducts show membranous and cytoplasmic staining

    Fig. 25.2
    figure 2

     High-grade adenocarcinoma shows nuclear and cytoplasmic staining for maspin

    Fig. 25.3
    figure 3

     Nuclear and cytoplasmic positivity of S100P in ductal adenocarcinoma, whereas the normal ducts are negative. Note that only nuclear staining or nuclear and cytoplasmic staining is regarded as positive

    Fig. 25.4
    figure 4

    Strong cytoplasmic staining for IMP-3 seen in ductal adenocarcinoma

    Fig. 25.5
    figure 5

    Double-staining technique (a) showing carcinoma positive for maspin (brown) and normal ducts positive for pVHL (purple). Double-staining technique (b) showing carcinoma positive for S100P (brown) and normal ducts positive for pVHL (purple)

    Fig. 25.6
    figure 6

    Ductal adenocarcinoma shows strongly positive cytoplasmic staining for MUC1

    Fig. 25.7
    figure 7

    Ductal adenocarcinoma shows strongly positive cytoplasmic staining for MUC5AC

    Fig. 25.8
    figure 8

    CA19-9 is not a very useful marker since it is also expressed in normal ducts and acini

    Fig. 25.9
    figure 9

    Ductal adenocarcinoma showing membranous staining for mesothelin

    Fig. 25.10
    figure 10

    Strong nuclear staining for p53 in ductal adenocarcinoma

    Fig. 25.11
    figure 11

    Ductal adenocarcinoma showing loss of expression of DPC4/SMAD4. Note that inflammatory cells and stromal cells show nuclear positivity as an internal positive control

    Fig. 25.12
    figure 12

    Ductal adenocarcinoma showing positive staining for DPC4

  5. 25.5.

    Markers for adenosquamous carcinoma of the pancreas (Table 25.5)

    Table 25.5 Markers for adenosquamous carcinoma of the pancreas
  6. 25.6.

    Markers for colloid carcinoma of the pancreas (Table 25.6)

    Table 25.6 Markers for colloid carcinoma of the pancreas
    Fig. 25.13
    figure 13

    MUC2 is frequently positive in colloid carcinoma and negative in ductal adenocarcinoma

  7. 25.7.

    Markers for medullary carcinoma of the pancreas (Table 25.7)

    Table 25.7 Markers for medullary carcinoma of the pancreas
    Fig. 25.14
    figure 14

    Medullary carcinoma on H&E stained slide. Note that the lymphoid cells serve as an internal positive control

    Fig. 25.15
    figure 15

    Loss of expression of microsatellite instability marker MSH6

  8. 25.8.

    Markers for undifferentiated carcinoma of the pancreas (Table 25.8)

    Table 25.8 Markers for undifferentiated carcinoma of the pancreas
  9. 25.9.

    Markers for hepatoid carcinoma of the pancreas (Table 25.9)

    Table 25.9 Markers for hepatoid carcinoma of the pancreas
  10. 25.10.

    Markers for signet ring cell carcinoma of the pancreas (Table 25.10)

    Table 25.10 Markers for signet ring cell carcinoma of the pancreas
  11. 25.11.

    Markers for undifferentiated carcinoma with osteoclast-like giant cells (Table 25.11)

    Table 25.11 Markers for undifferentiated carcinoma with osteoclast-like giant cells
  12. 25.12.

    Markers for acinar cell carcinoma (Table 25.12)

    Table 25.12 Markers for acinar cell carcinoma
  13. 25.13.

    Markers for pancreatic neuroendocrine neoplasm (Table 25.13)

    Table 25.13 Markers for pancreatic neuroendocrine neoplasm
    Fig. 25.16
    figure 16

    Lipid-rich variant of pancreatic neuroendocrine neoplasm

    Fig. 25.17
    figure 17

    Lipid-rich variant of pancreatic neuroendocrine neoplasm positive for chromogranin

    Fig. 25.18
    figure 18

    Show examples of pancreatic neuroendocrine neoplasm

    Fig. 25.19
    figure 19

    Pancreatic neuroendocrine neoplasm with positive staining for PR

    Fig. 25.20
    figure 20

    Pancreatic neuroendocrine neoplasm with positive staining for PAX8

    Fig. 25.21
    figure 21

    Pancreatic neuroendocrine neoplasm with positive staining for islet-1

  14. 25.14.

    Markers for solid and pseudopapillary neoplasm of the pancreas (Table 25.14)

    Table 25.14 Markers for solid-pseudopapillary neoplasm of the pancreas
    Fig. 25.22
    figure 22

    Solid-pseudopapillary tumor

    Fig. 25.23
    figure 23

    Solid-pseudopapillary tumor showing nuclear and cytoplasmic staining for beta-catenin. Note that normal pancreatic duct shows membranous staining for beat-cadherin

    Fig. 25.24
    figure 24

    Solid-pseudopapillary tumor showing loss of E-cadherin. Note that normal pancreatic ducts positive for E-cadherin

    Fig. 25.25
    figure 25

    Solid-pseudopapillary tumor positive for CD10

  15. 25.15.

    Markers for pancreatoblastoma (Table 25.15)

    Table 25.15 Markers for pancreatoblastoma
  16. 25.16.

    Markers for serous cystadenoma (Table 25.16)

    Table 25.16 Markers for serous cystadenoma
    Fig. 25.26
    figure 26

    Solid variant of serous microcystic adenoma

    Fig. 25.27
    figure 27

    Solid variant of serous microcystic adenoma positive for pVHL

    Fig. 25.28
    figure 28

    Solid variant of serous microcystic adenoma positive for MUC6

    Fig. 25.29
    figure 29

    Solid variant of serous microcystic adenoma positive for inhibin-alpha

  17. 25.17.

    Markers for mucinous cystic neoplasm (Table 25.17)

    Table 25.17 Markers for mucinous cystic neoplasm
  18. 25.18.

    Markers for intraductal papillary mucinous neoplasm (Table 25.18)

    Table 25.18 Markers for intraductal papillary mucinous neoplasm
  19. 25.19.

    Markers for intraductal oncocytic papillary neoplasm (Table 25.19)

    Table 25.19 Markers for intraductal oncocytic papillary neoplasm
  20. 25.20.

    Markers for pancreatic intraepithelial neoplasia 1 and 2 (Table 25.20)

    Table 25.20 Markers for pancreatic intraepithelial neoplasia 1 and 2
  21. 25.21.

    Markers for pancreatic intraepithelial neoplasia 3 (Table 25.21)

    Table 25.21 Markers for pancreatic intraepithelial neoplasia 3
  22. 25.22.

    Markers for intraductal tubular neoplasm of the pancreas (Table 25.22)

    Table 25.22 Markers for intraductal tubular neoplasm of the pancreas
  23. 25.23.

    Markers for chronic pancreatitis (Table 25.23)

    Table 25.23 Markers for chronic pancreatitis
    Fig. 25.30
    figure 30

    Show an example of autoimmune pancreatitis

    Fig. 25.31
    figure 31

    Show an example of autoimmune pancreatitis with many IgG4-positive plasma cells

Differential Diagnosis

  1. 25.24.

    Ductal adenocarcinoma vs. chronic pancreatitis (Table 25.24)

    Table 25.24 Ductal adenocarcinoma vs. chronic pancreatitis
  2. 25.25.

    Pancreatic neuroendocrine neoplasm vs. solid pseudopapillary neoplasm (Table 25.25)

    Table 25.25 Pancreatic neuroendocrine tumor vs. solid pseudopapillary neoplasm
  3. 25.26.

    Pancreatic neuroendocrine neoplasm vs. acinar cell carcinoma (Table 25.26)

    Table 25.26 Pancreatic neuroendocrine neoplasm vs. acinar cell carcinoma
  4. 25.27.

    Pancreatic neuroendocrine neoplasm vs. pancreatoblastoma (Table 25.27)

    Table 25.27 Pancreatic neuroendocrine tumor vs. pancreatoblastoma
  5. 25.28.

    Acinar cell carcinoma vs. solid pseudopapillary neoplasm (Table 25.28)

    Table 25.28 Acinar cell carcinoma vs. solid pseudopapillary neoplasm
  6. 25.29.

    Acinar cell carcinoma vs. ductal adenocarcinoma (Table 25.29)

    Table 25.29 Acinar cell carcinoma vs. ductal adenocarcinoma
  7. 25.30.

    Acinar cell carcinoma vs. pancreatoblastoma (Table 25.30)

    Table 25.30 Acinar cell carcinoma vs. pancreatoblastoma
  8. 25.31.

    Solid pseudopapillary neoplasm vs. pancreatoblastoma (Table 25.31)

    Table 25.31 Solid pseudopapillary neoplasm vs. pancreatoblastoma
  9. 25.32.

    Markers for hematopoietic malignancies in the pancreas (Table 25.32)

    Table 25.32 Markers for hematopoietic malignancies in the pancreas
  10. 25.33.

    Metastases in the pancreas (Table 25.33)

    Table 25.33 Metastases in the pancreas
  11. 25.34.

    Prognostic markers for pancreatic adenocarcinoma (Table 25.34)

    Table 25.34 Prognostic markers in pancreatic adenocarcinoma
  12. 25.35.

    Predictive markers for pancreatic neuroendocrine neoplasm (Table 25.35)

    Table 25.35 Predictive markers for pancreatic neuroendocrine neoplasm

Ampulla

  1. 25.36.

    Markers for normal ampulla of Vater (Table 25.36)

    Table 25.36 Markers for normal ampulla of Vater
  2. 25.37.

    Markers for ampullary adenocarcinoma—intestinal type (Table 25.37)

    Table 25.37 Markers for ampullary adenocarcinoma—intestinal type
  3. 25.38.

    Markers for ampullary adenocarcinoma—pancreatobiliary type (Table 25.38)

    Table 25.38 Markers for ampullary adenocarcinoma—pancreatobiliary type
  4. 25.39.

    Ampullary adenocarcinoma—intestinal type vs. pancreatobiliary type (Table 25.39)

    Table 25.39 Ampullary adenocarcinoma, intestinal type vs. pancreatobiliary type
  5. 25.40.

    Ampullary adenocarcinoma vs. pancreatic adenocarcinoma (Table 25.40)

    Table 25.40 Ampullary adenocarcinoma vs. pancreatic adenocarcinoma

Note for All Tables

Note: “+”, usually greater than 70 % of cases are positive; “−”, less than 5 % of cases are positive; “+ or −”, usually more than 50 % of cases are positive; “− or +”, less than 50 % of cases are positive. ND no data available, V variable.