Table 2 Categorization of IESF by RCR classification

Degenerative change (260)

Femoroacetabular impingement (FAI) (9)

Thoracic, Extra-Pulmonary (3)

 Paratracheal fullness

1

 Soft tissue density

1

 Widened mediastinum

1

Pulmonary (14)

 Pulmonary nodules, solid, not calcified (> 8 mm)

3

 Pulmonary nodules, solid, not calcified (< 8 mm)

2

 Granuloma

 Pleural effusion

 Pleural plaque

 Nodule v. Artifact

1

Abdominal (2)

 Calcification

2

Vascular (3)

 Enlarged/prominent cardiac silhouette

3

Bony abnormalities (12)

 Bone infarct

3

 Lytic bone lesion

 Sclerotic bone lesion

2

 Rib abnormality

3

 Hardware loosening

1

Other (1)

 VP Shunt Discontinuity v. artifact

1