25. Malformations and idiopathic disorders of the trachea 343 Valentina Luzzi, Francesca Conway, Diletta Cozzi, Luca Ciani, Leonardo Giuntoli, Marco Trigiani and Sara Tomassetti 26. Rare diseases of respiratory drive 357 Katie Rose, Tamarin Foy, Christopher Grime and Ian P. Sinha 27. Pleural mesothelioma 367 Joachim G.J.V. Aerts and Jan P. van Meerbeeck