Malar flattening Malar hypoplasia HP:0004671 HP:0000272 HP:0000332 Underdevelopment of the malar prominence of the jugal bone (zygomatic bone in mammals), appreciated in profile, frontal view, and/or by palpation. HP:0100846 HP:0000312 Zygomatic flattening The malar process is the most medial and superior portion of the bony midface, articulating with the maxilla and temporal and sphenoid bones, contiguous with the lateral boundary of the nasal bridge. The term malar hypoplasia is no longer preferred because surface examination cannot distinguish hypoplasia from hypotrophy. HP:0005443 Hypotrophic malar bone HP:0005319 Depressed malar region UMLS:C4280651 Underdevelopment of malar bone Decreased size of malar bone HP:0005455 HP:0004642 Flat cheekbone HP:0004658 UMLS:C1858085 Abnormal zygomatic bone morphology