| Namespace | MPheno.ontology | Obsolete | false |
| description | any structural anomaly of the upward extension from the body of the maxilla which articulates with the frontal bone; the frontal process has a vertical ridge which constitutes the medial border of the orbit (anterior lacrimal crest); posteriorly it forms the lacrimal groove together with the lacrimal bone; superomedially it is in close contact with the anterior ethmoidal sinuses |