Unilateral fibroadipose degeneration of the masticatory muscles.
D000273:Adipose Tissue / Q000000981:diagnostic imaging*; D000328:Adult; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008410:Masticatory Muscles / Q000000981:diagnostic imaging* / Q000473:pathology*; D020966:Muscular Disorders, Atrophic / Q000000981:diagnostic imaging* / Q000473:pathology; D016059:Range of Motion, Articular; D014057:Tomography, X-Ray Computed