Intramuscular peripheral nerve sheath tumors: schwannoma, ancient schwannoma, and neurofibroma

ConclusionsIntramuscular schwannomas were easily diagnosed based on MRI. In the case of intramuscular ancient schwannoma and neurofibroma with only split fat sign among the classic MRI findings, they might be distinguished from other intramuscular soft tissue tumors based on muscle denervation change or typical crescent split fat sign.
Source: Skeletal Radiology - Category: Radiology Source Type: research