[A case of interstitial lung diseases in patient treated with oxaliplatin, 5-fluorouracil and leucovorin (FOLFOX)].

FOLFOX/bevacizumab has been shown to be a promising chemotherapeutic regimen for advanced or metastatic colorectral cancer. We reported a case of intestinal lung diseases occurring in association with the use of this combination chemotherapy. The patient presented here is a 71-year-old man with lung metastasis of rectal cancer who was treated with FOLFOX4/ bevacizumab. He complained of high fever in the eleventh course of a FOLFOX4/bevacizumab regimen. Chemotherapy was stopped. But fourteen days after, he suffered from dyspnea and soon went into respiratory failure of WHO grade 3 with severe hypoxemia. He was diagnosed with interstitial pneumonitis. Corticosteroid therapy consisting of metylprednisolone(1 g/day) for tree days was significantly effective in treatment of respiratory failure. Drug-induced interstitial pneumonitis was suspected from chest X-ray and CT. We performed DLST of oxaliplatin, l-levofolinate, 5-FU and bevacizumab for him. He was positive for oxaliplatin and l-levofolinate and 5-FU, and negative for bevacizumab. Interstitial pneumonitis induced by FOLFOX/bevacizumab chemotherapy is rare, but six patients had developed, one of whom died in post-marketing surveillance. The possibility of interstitial pneumonitis should always be considered when a patient presents with a respiratory disorder while undergoing systemic chemotherapy.