Benign Peripheral Nerve Sheath Tumor: Radial Nerve Schwannoma

1. P. MINAFRA - MD 20 Aug 2015
RADIAL NERVE SCHWANNOMA
Clinical mass at left elbow anterolateral region of a 44-years-
old man, that was slowly enlarging and became more painful
over time. Magnetic resonance imaging of the left upper
extremity showed a 4.2x3.2 cm mass with heterogeneous
contrast enhancement. The patient underwent complete
removal of the lesion, with histopathological diagnosis of
schwannoma.
T1-weighted sagittal scan T2-weighted FSE axial scan
Case Report 1
Epidemiology
Schwannomas accounts for
nearly 5% of soft tissue tumors
of the upper extremities; those
arising in the radial nerves,
located at the extensor
compartment, are very rare.
Clinical Presentation
Clinically, these tumors are
often misdiagnosed as other
benign tumors, such as
lipomas, synovial cysts or
hemangiomas.
CASE REPORT
Benign Peripheral Nerve Sheath Tumor Developing from Schwann Cells

2. P. MINAFRA - MD 20 Aug 2015
Case Report 2
Surgery
Completely excision of the mass
is usually possible, with
preservation of nerve function
and low risk of recurrence
(images of surgery courtesy of F.
Battistella MD)