| Patient | Symptoms | Lesion Size (MRI) | Invasion of adjacent structures (MRI) | Preop. Suspicion of malignancy | Preop. Biopsy | Preop. Diagnostic |
| 1. 37 y.o. F | Pain the buttock | 13 × 6 × 4.2 cms | No | No | No | Benign cyst |
| 2. 72 y.o. M | Lump in the buttock | 8 × 5.1 × 3.3 cms | No | No | No | Aggressive angiomyxoma |
| 3. 71 y.o F | Incidental finding | 6.5 × 5.5 × 4.9 cms | No | No | No | Multiloculated dermal cyst or hamartoma |
| 4. 64 y.o F | Lump in th buttock | 5.4 × 6 × 3.4 cms | No | No | No | Lipoma |