"It is not considered synonymous with - but can include the term silent sinus syndrome, typically when there is also spontaneous enophthalmos, hypoglobus, and/or mid-facial deformity in the absence of complaints related to the nose and paranasal sinuses 1."
"stage I: membranous deformity"
"stage II: bony deformity"
"stage III: clinical deformity"
Expected headings
"Classification"