Abstract
Plexiform neurofibromas are an uncommon variant of neurofibromas that are described as being essentially pathognomonic of neurofibromatosis type 1 (NF1). Plexiform neurofibromas in the absence of NF1 are extremely rare. We present the case of a 38-year-old woman with a large multilobulated lumbosacral mass extending into the pelvis and proximal thigh. Histopathology of a CT-guided biopsy of the mass revealed it to be a neurofibroma. The imaging findings were consistent with a plexiform subtype. Further imaging and clinical workup showed that the patient had no other identifiable neurofibromas and did not meet criteria for the diagnosis of NF1.
Original language | English (US) |
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Pages (from-to) | 321-330 |
Number of pages | 10 |
Journal | Skeletal radiology |
Volume | 49 |
Issue number | 2 |
DOIs | |
State | Published - Feb 1 2020 |
Externally published | Yes |
Keywords
- Neurofibromatosis
- Plexiform neurofibroma
- Retroperitoneal mass
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging