Neurofibromatosis

Fig. 31.1

A 10-year-old girl with neurofibromatosis type 1. The plexiform neurofibroma involved the right cervical and axillary region. (a) Axial PET/CT study and (b) axial PET/CT control after 2 years (March 2010) show a mild nonhomogeneous ¹⁸F-FDG uptake (SUV_max 1.7) with a focal much intense radiotracer accumulation (SUV_max 3.9)

Fig. 31.2

A 9-year-old girl with neurofibromatosis type I and multiple neurofibromas extending from the mediastinum to the cardias. In abdomen the neurofibromas enclose the celiac trunk reaching the porta hepatis. (a) Axial PET/CT and (b) CT images show a mass surrounding the celiac trunk (SUV_max 1.8)

Fig. 31.3

A 7-year-old boy with neurofibromatosis type I. (a) Coronal CT, (b) PET, (c) PET/CT fusion, and (d) sagittal maximum intensity projection PET images show increased FDG uptake corresponding to a paravertebral mass in the left posterior mediastinum (orange arrow in c and yellow arrow in d) between seventh and tenth dorsal vertebrae (SUV_max 9.5). Histology demonstrated the presence of a malignant nerve sheath tumor

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