BACKGROUND. Silent sinus syndrome (SSS) is known as a relatively new pathology with clinical characterizations, represented by the facial asymmetry determined by progressive enophthalmos and hypoglobus and the absence of nasal symptoms. The theory that sustained this pathology is based on the negative maxillary pressure and the chronic evolution of symptomatology.
CASE REPORT. A 49-year-old white female presented in our clinic for facial asymmetry, right facial pressure, right depression of the orbital floor and hypoglobus, without diplopia. The CT scan showed an opaque right maxillary sinus with the depression of the orbital floor.
CONCLUSION. The pathogenesis, clinical and imagistic features are the most important in the SSS for diagnosis and correct treatment.