Radiation-induced lung disease 369 Robert P. Coppes and Peter van Luijk Chapter 11 – Interstitial lung disease HRCT in the diagnosis of interstitial lung diseases 371 Giovanni Della Casa, Stefania Cerri, Paolo Spagnolo, Pietro Torricelli and Luca Richeldi Sarcoidosis 382 Ulrich Costabel Idiopathic interstitial pneumonias 386 Dario Olivieri, Sara Chiesa and Panagiota Tzani Eosinophilic diseases 395 Andrew Menzies-Gow Drug-induced respiratory disease 399 Philippe Camus and Philippe Bonniaud Chapter 12 – Pulmonary vascular diseases Pulmonary embolism 411 Massimo Pistolesi Pulmonary vasculitis 417 Georgios Margaritopoulos and Athol U. Wells Pulmonary hypertension 422 Marc Humbert and Gérald Simonneau