Background: Description of cases of acute and chronic life-threatening pulm
onary toxicity resulting from treatment with gemcitabine in order to alert
to this problem and to avoid fatal incidents by timely administration of co
rticosteroids and diuretics. Materials and Methods: Description of 4 patien
ts pre senting with gemcitabine-induced toxicity: one with chronic-onset, l
ife-threatening acute RDS and bronchoscopically gained histological diagnos
is, requiring intensive-care treatment in our hospital; the 2nd patient sim
ilar, without developing acute RDS; the 3rd with subacute-onset, life-threa
tening shock and intensive-care hospitalization in a peripheral clinic, and
the 4th with :allergic reaction including shivering, fever and skin rushes
, requiring as well premature re-hospitalization. Results: All 4 patients s
urvived, although requiring intensive-care treatment. Extensive diagnostic
efforts in the 1st case allowed the histological diagnosis of interstitial
pneumonia with bronchiolitis obliterans. The patient recovered completely b
y steroid and diuretic therapy, and a re-exposure to gemcitabine was possib
le under steroid cover. Conclusion: The pulmonary toxicity of gemcitabine s
eems to be an underestimated side effect since more similar case reports ha
ve been published and also personally communicated to us. In some cases ear
ly signs of a potentially fatal pulmonary toxicity may be missed due to lac
k of knowledge, but could well be picked up and be treated if considered wi
th more caution. This could even lead to a continuation of the gemcitabine
treatment under steroid cover, just as we did in the Ist patient, vr;ho had
a gemcitabine-induced complete remission of his pancreas carcinoma, and as
well in the 2nd patient.