The Octopus Sign—A New HRCT Sign in Pulmonary Langerhans Cell Histiocytosis. - Poellinger, Alexander; Berezowska, Sabina; Myers, Jeffrey Leon; Huber, Adrian; Funke-Chambour, Manuela; Guler, Sabina; Geiser, Thomas; Harari, Sergio; Caminati, Antonella; Zompatori, Maurizio; Sverzellati, Nicola (Diagnostics (2075-4418), 2022)