PMC4896232_01
Lipoma arborescens in a 17-year-old man. Lateral radiograph of the knee shows a large mass within the suprapatellar region with areas of soft tissue and fat density.
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A lateral radiograph of the knee (Fig. 1) showed a prominent soft tissue density mass interspersed with fat density material in the suprapatellar region.
Lipoma arborescens in a 17-year-old man. Sagittal T1 weighted MRI shows a large suprapatellar effusion with a frond-like synovial mass of fat intensity.
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T1 (Fig. 2) and sagittal proton density (Fig. 3) images showed a large joint effusion in the suprapatellar region.
Lipoma arborescens in a 17-year-old man. Sagittal STIR MRI shows the synovial mass to be the same low intensity as fat.
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The synovial mass had the characteristics of fat on all sequences (Figure 4, Figure 5). There was no enhancement with contrast (Figure 6, Figure 7).
Lipoma arborescens in a 17-year-old man. Axial gradient echo MRI shows the characteristic frond-like pattern.
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The synovial mass had the characteristics of fat on all sequences (Figure 4, Figure 5). There was no enhancement with contrast (Figure 6, Figure 7).
Lipoma arborescens in a 17-year-old man. Coronal T1 fat-suppression MRI following gadolinium injection shows no enhancement of the synovial mass but enhancement of the effusion.
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The synovial mass had the characteristics of fat on all sequences (Figure 4, Figure 5). There was no enhancement with contrast (Figure 6, Figure 7).
Lipoma arborescens in a 17-year-old man. Sagittal T1 fat-suppression MRI following gadolinium injection shows no enhancement of the synovial mass but enhancement of the effusion.
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The synovial mass had the characteristics of fat on all sequences (Figure 4, Figure 5). There was no enhancement with contrast (Figure 6, Figure 7).