Anterior Lacrimal Crest Of The Maxilla, Lateral View

Description

Anterior lacrimal crest of the maxilla rises as a sharp vertical ridge along the frontal process, forming the anterior boundary of the lacrimal groove on the medial orbital wall. From a lateral perspective, the crest sits anterior to the lacrimal fossa for the lacrimal sac, with the maxillary surface lateral to the nasal cavity and the orbital surface turning medially toward the globe. Superiorly it approaches the anterior lacrimal tubercle near the frontonasal region, while inferiorly the ridge continues toward the nasolacrimal canal where the nasolacrimal duct descends to the inferior meatus. Nearby bony neighbors include the lacrimal bone posteriorly (with its posterior lacrimal crest) and the thin medial orbital plate that frames the orbit. This is the bony landmark that orients you to the lacrimal drainage apparatus. Enlargement of the lacrimal sac in dacryocystitis, trauma to the medial orbital rim, or fractures involving the frontal process of the maxilla can all distort the lacrimal groove and contribute to nasolacrimal outflow obstruction. For surgical planning, the fixed lateral viewpoint clarifies the anterior bony buttress against which the lacrimal sac lies, and it helps distinguish maxillary anatomy from the adjacent lacrimal bone when considering approaches such as external dacryocystorhinostomy or endonasal DCR where precise localization of the lacrimal sac fossa matters. A small ridge, big consequences. Use this illustration in head and neck anatomy teaching to anchor the osteology of the orbit, in ophthalmology and ENT materials on epiphora and DCR, or in facial trauma references that discuss medial orbital wall fractures and nasolacrimal duct injury. It also fits well in an atlas plate on the maxilla and lacrimal region where learners need consistent orientation cues in a single, fixed lateral view. Anatomical accuracy verified by SciePro's Medical Advisory Board.