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  • Title: Analysis of the Lamina Papyracea Dehiscence Based on Computed Tomography Findings.
    Author: Xu J, Qin L, Wang D.
    Journal: J Craniofac Surg; 2022 Sep 01; 33(6):e580-e583. PubMed ID: 35142733.
    Abstract:
    OBJECTIVES: Aim to evaluate the incidence and characteristics of nontraumatic dehiscence of the lamina papyracea (LP) via computed tomography (CT). METHODS: The authors retrospectively studied 893 patients' history and paranasal sinus CT from February to September 2020. The datum of incidence and the characteristics of LP dehiscence were collected and analyzed. RESULTS: The LP dehiscence was identified in 23 of 893 patients (2.58%). Lamina papyracea anatomical variations were categorized into Grade I, II, and III, which account 69.56%, 21.74%, and 8.70% of the entire dehiscence group. The average depth of LP ingression was 5.5 ± 0.7 mm. There was no statistical difference between bilateral incidence. The medial rectus muscle was involved in 3 lesions. In all CT reports, this anatomic variation was misdiagnosed as ethmoid sinusitis in 8 cases. CONCLUSIONS: Preoperative cognition of the anatomic variation of LP via CT is conducive to decrease misdiagnosis and postoperative complications.
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