Do Variations in Frontal Recess Anatomy Predispose to Mucocele Formation?

Area of Science:

• Otolaryngology
• Neurosurgery
• Radiology

Background:

• Mucoceles are benign cystic lesions frequently occurring in the frontoethmoidal region.
• Understanding predisposing factors for mucocele formation is crucial for diagnosis and management.

Purpose of the Study:

• To investigate whether the anatomical distribution of frontal air cells influences the likelihood of developing mucoceles.
• To analyze demographic, clinical, and radiological features of paranasal sinus mucoceles.

Main Methods:

• Retrospective review of 28 paranasal sinus mucocele cases diagnosed between 2011 and 2021.
• Data collected included patient demographics, surgical history, trauma, clinical presentation, radiological findings, and treatment outcomes.
• Analysis focused on the location of mucoceles and the distribution of frontal air cells.

Main Results:

• The study included 28 patients (67.9% male, mean age 40.75 years), with unilateral mucoceles in 92.9%.
• Frontal and frontoethmoidal mucoceles were most common (28.6% each), with 57.1% involving the frontal sinus.
• Orbital symptoms (60.7%) and headache (57.1%) were prevalent; frontal air cell distribution showed no significant difference between sides or in relation to mucocele involvement.

Conclusions:

• While frontal and frontoethmoidal mucoceles are frequently observed, the specific type and distribution of frontal air cells do not appear to be a predisposing factor for their formation.
• Further research may explore other potential etiological factors for mucocele development.