case_images: PMC535354_01
case_images: Coronal T2-weighted MRI reveals a slightly hyperintense fusiforme tumorous lesion of the median nerve approximately 5 cm above the right elbow (arrows).
case_images: 1471-2377-4-19-1.jpg
case_images: PMC535354_01_1471-2377-4-19-1.jpg
case_images: F1
case_images: Palpation along the median nerve revealed a fusiform mass at the distal third of the right upper arm, which could be confirmed by MRI (see figure 1 and 2).
case_images: Axial fat-suppressed T2-weighted MRI shows a tumorous lesion of the median nerve with a fascicular pattern (arrow).
case_images: 1471-2377-4-19-2.jpg
case_images: PMC535354_01_1471-2377-4-19-2.jpg
case_images: F2
case_images: Palpation along the median nerve revealed a fusiform mass at the distal third of the right upper arm, which could be confirmed by MRI (see figure 1 and 2).
case_images: Multicompartment arrangement of concentric whirl-like formations showing strong immunoreactivity with the monoclonal antibody against the epithelial membrane antigen (arrows).
case_images: 1471-2377-4-19-3.jpg
case_images: PMC535354_01_1471-2377-4-19-3.jpg
case_images: F3
case_images: In addition, small groups of regenerating axonal sprouts surrounded by perineurial ensheathment were visible, indicating some neuroma-like component (see figure 3 and 4).
case_images: Immunohistochemistry using the antibody against protein S-100: The pseudo-onion bulb formations are S-100-negative. In addition, small groups of regenerating axonal sprouts (arrows) surrounded by a perineurial ensheathment are visible indicating some neuroma-like component.
case_images: 1471-2377-4-19-4.jpg
case_images: PMC535354_01_1471-2377-4-19-4.jpg
case_images: F4
case_images: In addition, small groups of regenerating axonal sprouts surrounded by perineurial ensheathment were visible, indicating some neuroma-like component (see figure 3 and 4).