 Adjacent teeth vitality is of great importance when contemplating a pre-surgical working diagnosis of lateral periodontal cyst as missing adjacent teeth or past endodontic treatment would affect and confuse the differential diagnosis.It is rare but have been reported in literature that cysts can display mandibular or maxillary bone expansion, bone perforation and overlying gingiva communication.Lateral periodontal cysts radiographically present as a rounded, teardrop shape that are usually less than 10mm in size, presenting with a uni-cystic well-delineated radiolucency.