Gallbladder adenocarcinoma

Discussion:

This 60-year-old lady presented with sudden onset of right sided abdominal pain to our ED. She underwent a CT scan which demonstrated multifocal deposits within the liver and a distended gallbladder with soft tissue mass.

Tumor markers: CA 19-9 5.9, AFP 70, CEA <1.0

The patient underwent a liver biopsy. Histopathology:

  • Features consistent with poorly differentiated adenocarcinoma
  • Gallbladder adenocarcinoma has no specific immunohistochemistry marker
  • Ancillary studies in this case do not suggest any specific tumor type or origin
  • Differentials include gallbladder adenocarcinoma, cholangiocarcinoma as well as metastatic adenocarcinoma

Imaging and biopsy findings consistent with metastatic gallbladder adenocarcinoma (stage IV disease). 

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