PMC4897024_01
33-year-old woman with fibrolipomatous hamartoma of the median nerve. Axial T1 weighted pre (A) and post (C) gadolinium (TR 400/TE 13) and T1 fat-suppressed (C) (367/12) fast spin echo (FSE) MRI at the level of the carpal tunnel in location of palpable mass (vitamin E capsule denoted with green arrow). There is a fusiform mass (blue circle) in the expected location of the median nerve that is continuous with the nerve proximally and distally. On the non fat-suppressed images the high signal represents the fatty tissue infiltrating and enlarging the median nerve which drops completely with fat suppression. The fat is interspersed within thickened nerve fascicles which are low intensity. The mass displaces the flexor tendons.
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PMC4897024_01_gr1.jpg
fig1
Magnetic resonance imaging (MRI) demonstrated a mass at the level of the carpal tunnel where the palpable abnormality was felt (Figure 1, Figure 2, Figure 3, Figure 4).
33-year-old woman with fibrolipomatous hamartoma of the median nerve. Axial T2 weighted (3517/49) fat suppressed FSE MRI shows intermediate signal longitudinally oriented cylindrical structures representing the nerve fascicles. There is fusiform enlargement of nerve bundles caused by fatty infiltration.
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PMC4897024_01_gr2.jpg
fig2
Magnetic resonance imaging (MRI) demonstrated a mass at the level of the carpal tunnel where the palpable abnormality was felt (Figure 1, Figure 2, Figure 3, Figure 4).
33-year-old woman with fibrolipomatous hamartoma of the median nerve. Coronal T1 (500/11) FSE MRI shows thickened nerve fascicles with high signal fat interspersed (blue circle). The mass displaces the flexor tendons.
gr3.jpg
PMC4897024_01_gr3.jpg
fig3
Magnetic resonance imaging (MRI) demonstrated a mass at the level of the carpal tunnel where the palpable abnormality was felt (Figure 1, Figure 2, Figure 3, Figure 4).
33-year-old woman with fibrolipomatous hamartoma of the median nerve. Sagittal T1 (600/11) FSE MRI shows mass (blue arrow) displacing the flexor retinaculum anteriorly.
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PMC4897024_01_gr4.jpg
fig4
Magnetic resonance imaging (MRI) demonstrated a mass at the level of the carpal tunnel where the palpable abnormality was felt (Figure 1, Figure 2, Figure 3, Figure 4).