Langerhans' cell histiocytosis: temporal bone involvement

In Langerhans' cell histiocytosis, radiological findings on temporal bone i nvolvement show destructive bone lesions involving the mastoid, with the sq uamous part and middle ear less affected. Computed tomography (CT) is the p referred imaging modality for describing the extent of temporal bone involv ement. CT also has an important role in monitoring disease activity and res ponse to treatment. Bone scintigraphy seems to be less sensitive than radio graphy in detection of these lesions.