Research Article

The Clinical and Radiological Characteristics of Inflammatory Myofibroblastic Tumor Occurring at Unusual Sites

Table 1

The clinical and imaging manifestations of IMT.

NumberAgeSexLocationMedical historySize (cm)Manifestation of CTCT value (precontrast)CT value (postcontrast)T1WIT2WIInternal mass enhancementFollow-upALK

127FRight maxilla5 months3.3 × 4.0Low density oval mass32–35 Hu42–54 Hu////

244FRight thighRecurrence 8 times in 8 years5.6 × 7.4///Slight low signalHeterogeneous high signal with dark internal septationHeterogeneousIMT translate into LGMS after recurrence of 3 timesPositive

318MLeft shoulderRecurrence after 2 years of operation6.5 × 7.3Low density lobulated mass15–34 Hu52–60 HuSlight high signalHigh signalHomogenousRecurrence after 3 years of operation/

43FFrontal bone6 months2.0 × 2.2Isodensity round mass67 Hu////Positive

554MLeft thigh2 months4.1 × 6.9///////

647MRight groinRecurrence after 14 months of operation5.2 × 6.5Isodensity lobulated mass36–45 Hu43–66 HuIso signalIso signalHeterogeneousRecurrence after 29 months of operationNegative

717MRight mandible1 month3.2 × 3.2Low density oval mass37–47 Hu70–94 Hu////Negative

816FLeft thigh1 month5.3 × 8.7///Slight high signal, with hemorrhageHigh signal, with hemorrhageRim enhancement/Positive

934MLeft groin20 days2.0 × 2.4///Low signalHigh signalHomogeneous/Positive

1048FRight buttocks3 months1.8 × 3.0///Slight low signalHigh signalHomogeneous//

1148FRight intertrochanteric7 months3.0 × 4.7Expansive damage with hyperosteogeny///////

1259MBladder1 year3.3 × 4.0Low density lobulated mass35 Hu66 Hu////Negative

1310MFrontal bone5 months2.1 × 2.4Low density oval mass26 Hu41 HuLow signalHigh signal//