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Bleomycin is a cytotoxic antibiotic and a component of chemotherapy regimens of germ cell tumors and lymphoma. Bleomycin lung injuries occur in 10% of patients, and lead to severe interstitial pneumonia in 3% of patients. Pulmonary toxicity is related to endothelial cells injury induce by free radicals and inflammatory cytokines. Diagnosis of bleomycin-induced lung toxicity is based on the combination of clinical and radiological features, and requires to rule out differential diagnoses including pneumocystis. "Bleomycin-induced pneumonitis" is the most frequent pattern; eosinophilic pneumonitis and organizing pneumonia are rarer. Occurrence of bleomycin lung toxicity requires an immediate and often permanent discontinuation. Treatment is based on steroid. Regular clinical and pulmonary function tests monitoring are mandatory for early detection of bleomycin-induced lung toxicity., (Copyright © 2016 Société Française du Cancer. Published by Elsevier Masson SAS. All rights reserved.)

Although pulmonary arterial hypertension (PAH) is usually considered as a late complication in limited subsets of systemic sclerosis (SSc), PAH can also occur in diffuse SSc and in early SSc. The evaluation of the velocity of the tricuspid regurgitation on echocardiography is so far the most effective screening tool for pulmonary hypertension (PH) in SSc. Nevertheless, it is not measurable in about 20% of SSc patients ; In that case, pulmonary arterial pressure can be evaluated by using the velocity of a pulmonary insufficiency and indirect signs of PH should be analyzed: pulmonary ejection time, right heart cavities dilatation and aspect of the inferior vena cava. About 10% of SSc patients with a suspected of PAH on echocardiography have post-capillary PH at right heart catheterization mainly due to left ventricular diastolic dysfunction. In some SSc patients, PAH and post-capillary PH due to left ventricular diastolic dysfunction may be associated. This can be suspected in case of post-capillary PH with a transpulmonary gradient > 12 mmHg. Lung fibrosis is another cause of PH in SSc. The distinction between PH associated to lung fibrosis from PAH is sometimes difficult, particularly in patients with a FVC between 60 and 70% of expected. Pulmonary veno-occlusive disease is a possible cause of precapillary PH in SSc. The diagnosis of pulmonary veno-occlusive disease should be discussed in each case of PAH associated ScS due to the high risk of lung edema at the introduction of specific PAH drugs.

In France, pulmonary arterial hypertension associated with various diseases (connective-tissue diseases, congenital heart diseases, portal hypertension, HIV infection, consumption of anorectic agents) account for approximately 50% of cases of pulmonary arterial hypertension. As it is shown in idiopathic or familial pulmonary arterial hypertension, these forms of pulmonary arterial hypertension are characterized by pulmonary endothelial dysfunction and intense smooth muscle cell proliferation. Their clinical presentation and therapeutic management are similar to those of idiopathic and familial pulmonary arterial hypertension. However, their prognosis differs greatly: it is poor in scleroderma, and much better in congenital heart diseases.