Modified classification of postoperative cheek cysts. Line is drawn between the anterior end of the inferior turbinate and base of the lateral pterygoid process (red line). We modified the system such that an anterior cyst was defined as the posterior end of the cyst wall is located anterior to the midline (red dotted line). In cases where the posterior wall of the cyst is posterior to the midline, the cyst is classified as non-anterolateral.