Fissural cysts may develop along bone sutures. A fissural cyst of the maxilla may appear in the midline of the palate or below the nose along the lines followed by a cleft lip and/or palate.
Location |
Features |
Designation |
midline palate |
well-defined radiolucency that is usually near the molar region at the juncture of the two palatine processes |
median palatal cyst |
midline palate |
arises at the anterior palatal gingiva from vestigial oronasal ducts and may involve bone only, soft tissue only or both |
nasopalantine cyst |
lateral, sometimes bilateral |
radiolucency in the alveolar bone at the junction of the globular and maxillary processes, causing divergence of the maxillary lateral incisor and the cuspid |
globulomaxillary cyst |
lateral |
cyst at the junction of the globular and maxillary processes in the upper lip and/or lateral aspect of the nose; it is prone to infection |
nasolabial or nasoalveolar cyst |
Designation |
Cell Lining |
median palatal cyst |
stratified squamous cells and/or respiratory epithelial cells |
nasopalantine cyst |
stratified squamous cells or pseudostratified columnar cells; the wall of the cyst may contain cartilage or a prominent neurovascular bundle |
globulomaxillary cyst |
ciliated columnar cells or stratified squamous cells |
nasolabial or nasoalveolar cyst |
stratified squamous cells |
Specialty: Otolaryngology