An ALPSA (anterior labral periosteal sleeve avulsion) lesion is an injury at the front of the shoulder associated with shoulder dislocation.[1]

ALPSA lesion
PD-weighted MRI with fat saturation of the shoulder showing an ALPSA lesion

References

edit
  1. ^ Gaillard, Frank. "Anterior labroligamentous periosteal sleeve avulsion lesion | Radiology Reference Article | Radiopaedia.org". Radiopaedia. Retrieved 15 July 2020.