case_images: PMC9984908_01
case_images: Axial high-resolution CT scan of the temporal bone (initial presentation). There is extensive bony destruction in the left lateral skull base. The otic capsule is intact. CT, computed tomography.
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case_images: We reviewed her charts and initial imaging done at that time (Figures 1 and 2). Imaging at the time of initial LCH diagnosis with a CT scan showed extensive bony erosion of the lateral skull base (Figure 1).
case_images: Coronal MRI of the skull base, T1 with contrast (gadolinium) (initial presentation). It shows a soft tissue mass in the lateral skull base of the left. It demonstrates T1 hyperintensity enhanced with contrast. MRI, magnetic resonance imaging.
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case_images: We reviewed her charts and initial imaging done at that time (Figures 1 and 2). Magnetic resonance imaging demonstrated soft tissue mass with hyperintensity in T1 with contrast images (Figure 2).
case_images: Axial high-resolution CT scan of the temporal bone. The middle ear and tympanic membrane appear to be intact. There is a defect in the posterior wall of the external ear canal, the mastoid is filled with a soft tissue mass. Of note, the temporal bone lateral to the otic capsule has mostly re-appeared with growth since the initial CT scan at the time of the primary LCH diagnosis (Figure 1). CT, computed tomography; LCH, Langerhans cell histiocytosis.
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case_images: High-resolution CT scan of the temporal bone was obtained (Figure 3).
case_images: Coronal MRI of the skull base, T2-weighted. The soft tissue mass in the left mastoid is non-specific with heterogeneous T2 hyper- and hypointensity. MRI, magnetic resonance imaging.
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case_images: A skull base MRI was obtained (Figure 4).