RADIOLOGICAL DIAGNOSTICS OF THE SPHENOID SINUS IN CHILDREN BEFORE PAEDIATRIC ENDOSCOPIC SINUS SURGERY

*Anna Chmielik¹, Lechosław P. Chmielik², Magdalena Żabicka¹, Mieczysław Chmielik², Romana Bogusławska¹

Summary
Introduction.In the close neighbourhood of the sphenoid sinus many important structures are located, which make sphenoid sinus surgery potentially risky.
Aim. The aim of this study was to analyze the usefulness of multidimensional computed tomography reconstructions of the sphenoid sinus in children on whom endoscopic sinus surgery was performed.
Material and methods. Before the operation precise computed tomography diagnostics are needed. The authors analyzed 32 two- and three- dimensional CT images of children on whom PESS was performed. Diverse anatomy of the sphenoid sinus was found. The use of multi-dimensional computed tomography reconstructions of the sphenoid sinus improves visualization of the location and size of the pathology, as well as the anatomical variations of the sinus.
Results. There were 20 boys and 12 girls with ages varying from 6 to 17 years (mean age 10.9 years). In all analyzed cases (33) at least one septum was seen in the sphenoid sinus. Multiseptate sinus was found in 20 cases. One-side hypoplastic sphenoid sinus was seen in 3 cases, with collateral sinus well developed. One-side protrusion of the optic nerve was observed in 1 case, and in 1 case the protrusion was bilateral. In this cases pneumatization of the ipsilateral or both anterior clinoid processes was found. There were no dehiscences in the sphenoid sinus walls.
Conclusions. The sphenoid sinus anatomy varies. The use of multi-dimensional computed tomography reconstructions of the sphenoid sinus improves visualization of the location and size of the pathology, as well as the anatomical variations of the sinus, giving preoperative information facilitating surgical planning.

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