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Background <p>Paranasal sinus (PNS) mucoceles are benign, expansile cyst-like structural masses lined by the mucoperiosteum of the sinus cavity. The expansion of mucoceles in the PNSs leads to remodelling and erosion of surrounding bone, distortion of craniofacial-orbital anatomy, and exertion of pressure on adjacent structures.</p> Aim <p>To assess the anatomical bone distortion of the craniofacial-orbital complex secondary to PNS mucoceles.</p> Method <p>Computed tomography (CT) images of 42 patients diagnosed with PNS mucoceles were reviewed and analysed retrospectively. The bony distortions of craniofacial-orbital anatomy were analysed based on partial (P) and total (T) bone loss, as well as the inclusion of whether there was partial (pc) or full (fc) cortical bone erosion.</p> Results <p> All types of PNS mucoceles were observed in this study; however, the frontal sinus mucoceles (FSM) and ethmoid sinus mucoceles (ESM) were more significantly common (<i>p</i> &lt; 0.05). Almost all related bones of the craniofacial-orbital anatomy of these patients were, at one point, observed to be distorted. The frontal, ethmoid, and lacrimal bones were observed to be commonly distorted in terms of partial and full cortical erosion of the orbital plate of these bones, resulting in partial and total loss of these bones, depicting distortions occurring more medially. Regarding the bone invasion patterns and distortions in relation to the different types of mucoceles, almost all the related bones of the craniofacial-orbital skeleton were partially and totally lost (either involving pc and fc) in FSM and ESM. However, only FSM showed a statistically significant relationship with its pattern of distortions. Bone distortions caused by sphenoid and maxillary sinus mucoceles were limited to lacrimal, nasal, and maxillary bones, with no significant relationship to their distortion pattern.</p> Conclusions <p> Findings from this study reveal that the bone invasion/distortion pattern of PNS mucoceles could possibly depend on the anatomical proximities of these distorted craniofacial-orbital bones to the affected PNS. This also implies that centrally located PNS mucoceles tend to cause total distortions of the craniofacial-orbital skeleton.</p>

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Paranasal Sinus Mucoceles and Their Bone Distortion Patterns of the Craniofacial-Orbital Complex: A Single-Centre Assessment

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月7日

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  • Okikioluwa Stephen Aladeyelu,
  • Peter Michael Burge,
  • Wonder-Boy Eumane Mbatha,
  • Anil Madaree,
  • Lelika Lazarus

摘要

Background

Paranasal sinus (PNS) mucoceles are benign, expansile cyst-like structural masses lined by the mucoperiosteum of the sinus cavity. The expansion of mucoceles in the PNSs leads to remodelling and erosion of surrounding bone, distortion of craniofacial-orbital anatomy, and exertion of pressure on adjacent structures.

Aim

To assess the anatomical bone distortion of the craniofacial-orbital complex secondary to PNS mucoceles.

Method

Computed tomography (CT) images of 42 patients diagnosed with PNS mucoceles were reviewed and analysed retrospectively. The bony distortions of craniofacial-orbital anatomy were analysed based on partial (P) and total (T) bone loss, as well as the inclusion of whether there was partial (pc) or full (fc) cortical bone erosion.

Results

All types of PNS mucoceles were observed in this study; however, the frontal sinus mucoceles (FSM) and ethmoid sinus mucoceles (ESM) were more significantly common (p < 0.05). Almost all related bones of the craniofacial-orbital anatomy of these patients were, at one point, observed to be distorted. The frontal, ethmoid, and lacrimal bones were observed to be commonly distorted in terms of partial and full cortical erosion of the orbital plate of these bones, resulting in partial and total loss of these bones, depicting distortions occurring more medially. Regarding the bone invasion patterns and distortions in relation to the different types of mucoceles, almost all the related bones of the craniofacial-orbital skeleton were partially and totally lost (either involving pc and fc) in FSM and ESM. However, only FSM showed a statistically significant relationship with its pattern of distortions. Bone distortions caused by sphenoid and maxillary sinus mucoceles were limited to lacrimal, nasal, and maxillary bones, with no significant relationship to their distortion pattern.

Conclusions

Findings from this study reveal that the bone invasion/distortion pattern of PNS mucoceles could possibly depend on the anatomical proximities of these distorted craniofacial-orbital bones to the affected PNS. This also implies that centrally located PNS mucoceles tend to cause total distortions of the craniofacial-orbital skeleton.