PMC6831966_01
Locally advanced organ involvement of the pancreatic tail.
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A chest, abdomen, and pelvis computed tomography (CT) scan revealed extensive organ involvement of the pancreatic tail, with locoregional progression up to the back of the stomach (Figure 1).
Endoscopic ultrasound showing a 5.3 x 4 cm anechoic cystic lesion with an
irregularly thick wall and multiple mural nodules in the pancreatic
tail.
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Small intralesional hyperechoic structures could be seen along with mural nodules and a fine vascular network clearly visualized using Doppler ultrasound (Figure 2).
Immunohistochemistry showing a positive expression of CK7.
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Immunohistochemistry showed that the tumor cells expressed CK7 (Figure 3) and P40 (Figure 4) but were negative for CDX2 (Figure 5) and CK20.
Immunohistochemistry showing a positive expression of P40.
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Immunohistochemistry showed that the tumor cells expressed CK7 (Figure 3) and P40 (Figure 4) but were negative for CDX2 (Figure 5) and CK20.
Immunohistochemistry showing that the tumor cells were negative for CDX2.
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Immunohistochemistry showed that the tumor cells expressed CK7 (Figure 3) and P40 (Figure 4) but were negative for CDX2 (Figure 5) and CK20.
Tumor hyperfixation with PET scanner. PET indicates positron emission
tomography.
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A positron emission tomography (PET) scan was performed revealing rapid tumor growth compared with the baseline CT scan performed 15 days earlier, with the appearance of new liver metastases at the junction of segments VII and VIII and in segment VI (Figure 6).