Type 1 - Seroma |
Homogenously hypointense seroma |
Hyperintense collection |
Laminar |
No evidence of outer capsule formation |
Type 2 – Subacute hematoma |
Homogenously hyperintense |
Homogenously hyperintense |
Oval |
Presence Thin capsule of methaemoglobin formation |
Type 3 – Chronic organizing hematoma |
Hypointense |
Heterogeneous hypointense/ isointense |
Oval |
Thick capsule formation Capsular and internal enhacement on postcontrast sequences |
Type 4-Closed laceration |
Hypointense |
Hyperintense |
Linear |
No capsule formation |
Type pseudonodular 5-Small, rounded appearance |
Variable |
Variable |
Round |
Variable capsule formation |
Type 6-Superimposed infection |
Variable |
Variable |
Variable sinus tract |
Thick enhancing capsule |