Table 1.
The clinical and imaging manifestations of IMT.
| Number | Age | Sex | Location | Medical history | Size (cm) | Manifestation of CT | CT value (precontrast) | CT value (postcontrast) | T1WI | T2WI | Internal mass enhancement | Follow-up | ALK |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 27 | F | Right maxilla | 5 months | 3.3 × 4.0 | Low density oval mass | 32–35 Hu | 42–54 Hu | / | / | / | / | |
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| 2 | 44 | F | Right thigh | Recurrence 8 times in 8 years | 5.6 × 7.4 | / | / | / | Slight low signal | Heterogeneous high signal with dark internal septation | Heterogeneous | IMT translate into LGMS after recurrence of 3 times | Positive |
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| 3 | 18 | M | Left shoulder | Recurrence after 2 years of operation | 6.5 × 7.3 | Low density lobulated mass | 15–34 Hu | 52–60 Hu | Slight high signal | High signal | Homogenous | Recurrence after 3 years of operation | / |
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| 4 | 3 | F | Frontal bone | 6 months | 2.0 × 2.2 | Isodensity round mass | 67 Hu | / | / | / | / | Positive | |
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| 5 | 54 | M | Left thigh | 2 months | 4.1 × 6.9 | / | / | / | / | / | / | / | |
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| 6 | 47 | M | Right groin | Recurrence after 14 months of operation | 5.2 × 6.5 | Isodensity lobulated mass | 36–45 Hu | 43–66 Hu | Iso signal | Iso signal | Heterogeneous | Recurrence after 29 months of operation | Negative |
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| 7 | 17 | M | Right mandible | 1 month | 3.2 × 3.2 | Low density oval mass | 37–47 Hu | 70–94 Hu | / | / | / | / | Negative |
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| 8 | 16 | F | Left thigh | 1 month | 5.3 × 8.7 | / | / | / | Slight high signal, with hemorrhage | High signal, with hemorrhage | Rim enhancement | / | Positive |
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| 9 | 34 | M | Left groin | 20 days | 2.0 × 2.4 | / | / | / | Low signal | High signal | Homogeneous | / | Positive |
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| 10 | 48 | F | Right buttocks | 3 months | 1.8 × 3.0 | / | / | / | Slight low signal | High signal | Homogeneous | / | / |
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| 11 | 48 | F | Right intertrochanteric | 7 months | 3.0 × 4.7 | Expansive damage with hyperosteogeny | / | / | / | / | / | / | / |
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| 12 | 59 | M | Bladder | 1 year | 3.3 × 4.0 | Low density lobulated mass | 35 Hu | 66 Hu | / | / | / | / | Negative |
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| 13 | 10 | M | Frontal bone | 5 months | 2.1 × 2.4 | Low density oval mass | 26 Hu | 41 Hu | Low signal | High signal | / | / | |