Extratarsal chalazia.

Three cases of atypical, extratarsal chalazia are presented. All three patients initially presented with a history of an inflammatory mass close to the lid margin. Inferior migration subsequently occurred, with loss of connection to the tarsus, causing confusion in the diagnosis. The basis for this migration is postulated to be the anatomical relationships of the tarsus, postorbicular fascia, and lower eyelid retractors. A good response was obtained with standard surgical therapy.