Localised neurofibromas are the most common type of neurofibroma, a peripheral nerve benign tumor. It accounts for approximately 90% of neurofibromas. It is an isolated findings, not associated with neurofibromatosis type 1.
On MRI, localised neurofibroma shares similarities with schwannoma. They are well defined, encapsulated, fusiform soft tissue masses. They usually measure less than 5 cm in diameter.
Signal characterisitics include
- T1: isointense
- T2: hyperintense and heterogeneous, can exhibit a fascicular sign
- T1 C+ (Gd): variable enhancement
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