AHO and Abscesses
| Parameter | No. of sites | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Long bone | Pelvis | Spine | Other | Any | |||||
| Total cases of AHO | 48 | 25 | 2 | 11 | 86 | ||||
| Cases referred for MRI | 16 | 16 | 2 | 5 | 39 | ||||
| Referrals because of suspected abscess | 12 | 15 | 2 | 4 | 33 | ||||
| Suspected abscess shown by MRI | 5 | 7 | 1 | 2 | 15 | ||||
| Unsuspected abscess shown by MRI performed because of diagnostic uncertainty | 1 | 1 | 0 | 0 | 2 | ||||
| Abscess drainage after MRI | 3 | 5 | 1 | 2 | 11 | ||||
Major long bone cases include 44 with lower-extremity AHO (1 multifocal), 3 with upper-extremity AHO, and 1 with multifocal lower- and upper-extremity AHO. Sites designated as other include 8 pedal, 2 clavicular, and 1 patellar.