Fig. 17
From: The elbow: review of anatomy and common collateral ligament complex pathology using MRI
A 25-year-old man with pain and medial instability after a fall on an outstretched hand. Axial T1-weighted MRI (a) showing the intact right posterior bundle of the medial collateral ligament complex of a healthy volunteer (white arrowhead). Axial FS PD-weighted MRI (b) showing an acute tear of the left posterior bundle of the medial collateral ligament complex (white arrow), inflammatory changes in the soft tissue of cubital tunnel (white asterisk), displacement and flattening of the ulnar nerve (yellow arrow), and joint effusion (black asterisks)