case_images: PMC3767070_01
case_images: (a) Coronal CT sinus scan and (b) Sagittal CT Sinus scan; 4mm wide bone defect in the anterior cribriform plate just to the right of crista galli, with a small meningoencephalocoele sac as confirmed at surgery. (c) Axial post gadolinium T1W scan showing a small meningocoele in the right anterosuperior nasal cavity with central fluid signal and rim enhancement of adjacent mucosa.
case_images: 10.1177_2042533313486640-fig1.jpg
case_images: PMC3767070_01_10.1177_2042533313486640-fig1.jpg
case_images: fig1-2042533313486640
case_images: A coronal CT sinus scan done to investigate his non-specific upper respiratory tract symptoms showed a 4 x 3 mm defect in the cribriform plate adjacent to the vertical attachment of the middle turbinate, a relatively common site for 'congenital' defects (Figure 1).
case_images: PMC3767070_02
case_images: (a) CT Sinus scan: anomalous 'flask-shaped' anterior ethmoid air cell opacified due to chronic mucocoele. (b) At the root of this air cell, the bone of fovea ethmoidalis is expanded, irregular, partly thickened and partly dehiscent.
case_images: 10.1177_2042533313486640-fig2.jpg
case_images: PMC3767070_02_10.1177_2042533313486640-fig2.jpg
case_images: fig2-2042533313486640
case_images: However, detailed sinus CT showed an anomalous, prominent right agger nasi ethmoid air cell extending up to the skull base with sclerotic thickened bony walls and opacification within (Figure 2).