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Click Non-contrast axial CT in soft tissue windows of a 17 year old male diagnosed with maxillary air cyst. The scan demonstrates dilatation of the left maxillary sinus with protrusion and cortical bone thinning into the left nasal cavity, expansion through the anterior maxillary wall, and expansion into the inferior orbital wall. No associated mass, mucosal thickening or involvement of surrounding soft tissues is present. (Siemens Somatom Definition AS, 60 mAs, 120 kV, 1 mm slice thickness, non-contrast).

Click Non-contrast axial CT in bone windows of a 17 year old male diagnosed with maxillary air cyst. The scan demonstrates dilatation of the left maxillary sinus with protrusion and cortical bone thinning into the left nasal cavity, expansion through the anterior maxillary wall, and expansion into the inferior orbital wall. No associated mass, mucosal thickening or involvement of surrounding soft tissues is present. (Siemens Somatom Definition AS, 60 mAs, 120 kV, 1 mm slice thickness, non-contrast).

Click Non-contrast coronal CT in soft tissue windows of a 17 year old male diagnosed with maxillary air cyst. The scan demonstrates dilatation of the left maxillary sinus with protrusion and cortical bone thinning into the left nasal cavity, expansion through the anterior maxillary wall, and expansion into the inferior orbital wall. No associated mass, mucosal thickening or involvement of surrounding soft tissues is present. (Siemens Somatom Definition AS, 60 mAs, 120 kV, 1 mm slice thickness, non-contrast).

Click Non-contrast coronal CT in bone windows of a 17 year old male diagnosed with maxillary air cyst. The scan demonstrates dilatation of the left maxillary sinus with protrusion and cortical bone thinning into the left nasal cavity, expansion through the anterior maxillary wall, and expansion into the inferior orbital wall. No associated mass, mucosal thickening or involvement of surrounding soft tissues is present. (Siemens Somatom Definition AS, 60 mAs, 120 kV, 1 mm slice thickness, non-contrast).