21 June 2023
: Case report
Neuroendocrine Carcinoma of the Extrahepatic Bile Ducts: A Case Report
Challenging differential diagnosis, Rare disease
Denis Jevdokimov

DOI: 10.12659/AJCR.939239
Am J Case Rep 2023; 24:e939239
Figure 5. Immunohistochemistry of specimen: (A) proliferation fraction with Ki-67: 75–80% (original magnification 400×); (B) synaptophysin positivity (original magnification 200×).