This 10 year old UAE girl was admitted to the hospital because of rheumatic fever

She had cafe au lait patches over right subscapular region.

Routine chest x-ray showed a lesion in the posterior mediastinum obliterating the right cardio-phrenic angle.
    Chest x-ray: P-A view and lateral view

It was smooth and rounded.

The lesion was suggestive of neurofibroma.

Patient refused surgery.