Docetaxel, a new chemotherapeutic agent, has demonstrated activity in
nan-small cell lung cancer and breast cancer. Toxicities associated wi
th treatment using docetaxel include hypersensitivity reactions and fl
uid retention, which can be prevented by pretreatment with corticoster
oids. We describe herein two cases of acute interstitial pneumonitis a
fter administration of docetaxel to patients suffering from metastatic
non-small cell lung cancer. A pulmonary toxicity of docetaxel from an
hypersensitivity reaction is likely because of symptoms course, radio
logical demonstration of an interstitial pneumonitis, lack of an infec
tious etiology and of clinical response to antibiotic treatment, and r
apid recovery with corticosteroids. This unusual pulmonary toxicity ha
s been rarely described with docetaxel, as transient pulmonary infiltr
ates have been observed during treatment with paclitaxel. The possibil
ity of an hypersensitivity pneumonitis must be taken into account when
a patient with docetaxel treatment presents pulmonary infiltrates.