PET-guided biopsy with needle navigation facilitates diagnosis of angiosarcoma in neurofibromatosis type 1.
Malignant degeneration frequently arises from preexisting plexiform neurofibroma in patients with neurofibromatosis type 1 (NF1). Image guided biopsy for diagnostic purposes, such as with CT guidance, can be technically challenging in these patients, as CT cannot distinguish malignant from benign areas within the same tumor. Navigation with multi-modality (PET, CT, and ultrasound) image fusion facilitated the successful biopsy and diagnosis of angiosarcoma arising from a pelvic neurofibroma in a patient with NF1. Successful targeting assisted treatment selection in this case. This novel navigation technique may facilitate the otherwise difficult diagnosis of malignancy in patients with NF1.
Center for Interventional Oncology, National Institutes of Health, Bethesda, Maryland; Radiology and Imaging Sciences, National Institutes of Health, Bethesda, Maryland; Duke University School of Medicine, Durham, North Carolina.
Yilun
Y
Koethe
Brigitte C
BC
Widemann
Fouad
F
Hajjar
Bradford J
BJ
Wood
Aradhana M
AM
Venkatesan
D000293:Adolescent; D005260:Female; D006394:Hemangiosarcoma / Q000175:diagnosis*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D061705:Image-Guided Biopsy / Q000379:methods*; D064847:Multimodal Imaging / Q000379:methods*; D009456:Neurofibromatosis 1 / Q000473:pathology*; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
FDG-PET; image guided biopsy; malignant peripheral neural sheath tumor; neurofibromatosis type 1; plexiform neurofibroma