Ohngren line

Ohn·gren line

(ōn'gren),
a theoretic plane passing between the medial canthus of the eye and the angle of the mandible; used as an arbitrary dividing line in classifying localized tumors of the maxillary sinus; tumors above the line invade vital structures early and have a poorer prognosis, whereas those below the line have a more favorable prognosis.
Farlex Partner Medical Dictionary © Farlex 2012

Ohn·gren line

(ōn'gren līn)
A theoretic plane passing between the medial canthus of the eye and the angle of the mandible; used as an arbitrary dividing line in classifying localized tumors of the maxillary sinus; tumors above the line invade vital structures early and have a poorer prognosis, whereas those below the line have a more favorable prognosis.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012