Null-Cell Ectopic Pituitary Adenoma of the Nasal Cavity

Figure 1

Axial view CT facial bone. (a) Noncontrast image demonstrating soft tissue density opacification of the left nasal cavity and left maxillary sinus with normal aeration of the right nasal cavity and maxillary sinus. (b) Postcontrast image revealing a heterogeneously enhancing mass within the middle left nasal cavity (solid arrow) with homogeneous enhancement of the inferior nasal turbinate (dashed arrow) which is displaced inferiorly and laterally. Mucosal enhancement of the left maxillary sinus with no enhancement of the contents of the left maxillary sinus (curved arrow) indicating retained secretions. (c) Bone reconstruction images showing bowing of the bony nasal septum and medial wall of the left maxillary sinus (solid arrows) which are reduced in density indicating chronicity with no features of bony destruction.

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