Gallbladder cancer with EGFR mutation and its response to GemOx with erlotinib: a case report and review of literature.

This case reports the possible efficacy of erlotinib in combination with gemcitabine and oxaliplatin in treating an EGFR-mutated GBC with liver metastasis. To our knowledge, this is the first article reporting the response to erlotinib combination therapy with this particular solitary mutation.