Toddler with a bump on their nose

MRI of nasal dermoid
Axial T1 MRI without contrast of the face (above left) shows an oval lesion of high signal intensity at the tip of the nose, which on axial T1 MRI with contrast with fat saturation (below left) shows heterogenous enhancement. Axial diffusion weighted imaging MRI (above right) shows the lesion has diffusion restriction, while the sagittal T2 MRI (below right) shows no evidence of intracranial extension.

The diagnosis was nasal dermoid.