Lichen planus of alimentary canal and tympanic membranes.
D004064:Digestive System; D004423:Ear; D041981:Gastrointestinal Tract; D006801:Humans; D008010:Lichen Planus; D014432:Tympanic Membrane
DIGESTIVE SYSTEM/lichen planus; EAR/lichen planus; VALSALVA'S TEST