FOLFIRINOX treatment leading to pathologic complete response of a locally advanced pancreatic cancer.

Pancreatic cancer (PC) is a lethal disease with a poor prognosis. It is typically asymptomatic and therefore most often diagnosed at an advanced stage. A primary unresectable PC can become resectable in case of tumor regression turning palliative into neoadjuvant therapy. We present a 67-year old female patient who was diagnosed with a locally advanced adenocarcinoma of the pancreatic head. After receiving palliative intended chemotherapy with the FOLFIRINOX regimen, staging computed tomography revealed local resectability of the pancreatic head tumor. The patient underwent an uneventful total pancreatectomy. Pathohistological investigation revealed a pathologic complete response (pCR). pCR after FOLFIRINOX treatment in primary unresectable PC is extremely rare. It might enable surgical resection and can increase the survival rate.