Lateral Lamella of Cribriform Plate (LLCP): A Computed Tomography Radiological Analysis

Sasmal, Dinesh Kumar; Singh, Manorama; Nayak, Sunita; Panda, Suvankar; Reddy, P. Narmada

doi:10.1007/s12070-021-02463-6

Cited by 2 publications

(4 citation statements)

References 18 publications

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“…Keros in 1962 presented a classification system to categorize the depth of olfactory fossa in three types. In Keros classification type-I, the depth of olfactory fossa is 1-3 mm, type-II 4-7 mm and type-III 8-16 mm [26]. Keros type-II is the most common type, followed by type-I and type-III.…”

Section: Discussionmentioning

confidence: 99%

“…This classification is based on the angle of lateral lamella with respect to a horizontal line passing through the plane of cribriform plate. Gera classification is divided in to 3 classes; class 1 (low risk, >80 degrees), class 2 (medium risk, 45-80 degrees) and class 3 (high risk, <45 degrees) [26,28]. Therefore, CT scan in addition to the diagnosis, also helps to evaluate the depth and angle of olfactory fossa prior to surgery.…”

Section: Discussionmentioning

confidence: 99%

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Diagnostic accuracy of CT scans in allergic fungal sinusitis: A cross sectional study

Mughal¹

2022

J Clin Images Med Case Rep

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Fungal sinusitis, with passage of time, has become one of the common entities among a long list of inflammatory diseases involving mucosa of the sinonasal tract [1]. By definition, AFS is a collection of cellular debris and mucus in result of an allergic response to fungal colonization in sinus mucosa [2]. The patients are young, atopic with good immunity suffering from nasal blockage, congestion, nasal discharge (purulent or watery), anosmia or headache for several years [1]. On clinical examination nasal polyps are seen [3,4]. The causative organisms are vastly from species of Aspergillus but dermatiaceous fungi are also seen such as Bipolaris, Alternaria, Curvularia and Fusarium [5].

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Diagnostic accuracy of CT scans in allergic fungal sinusitis: A cross sectional study

Mughal¹

2022

J Clin Images Med Case Rep

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“…In accordance with previous studies, Gera class II lateral lamella angles (72.3%) were the most common. Table 4 summarizes the distribution of Gera classi cation in previous reports [1,6,8,16,18,24]. In terms of gender, males had signi cantly higher angles than females, but many authors did not observe such a difference [1,8,16,18] [7,17].…”

Section: Discussionmentioning

confidence: 99%

“…In 1962, Keros et al proposed a classi cation system using the depth of the cribriform plate to determine their vulnerability to iatrogenic injuries [15]. Nevertheless, many authors emphasize that more needs to be evaluated than just the depth of the cribriform plate, since this comprises only the medial portion of the anterior skull base, whereas the lateral portion is angulated [3,6,12,13,[22][23][24]. Gera et al predicted the hypothetical iatrogenic injury risk based on the angle formed between the lateral lamella of the cribriform plate and the horizontal plane in continuation with the cribriform plate [8].…”

Section: Discussionmentioning

confidence: 99%

Computed Tomography Volumetric Analysis of Frontal Sinus Pneumatization and its Effect on Lateral Lamella Angle

Alrehaili,

Alharbi,

Alharbi

et al. 2024

Preprint

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Purpose Anatomical associations between the frontal sinus and anterior skull base must be carefully understood in preoperative imaging to minimize surgical complications. This study aims to investigate the relationship between frontal sinus volume and lateral lamella angle. Methods 150 computed tomography scans of paranasal sinuses (300 sides) were retrospectively reviewed. Pneumatization patterns were classified according to volume using a three-dimensional reconstruction analysis of the frontal sinuses. The angle formed between the lateral lamella and the horizontal plane in continuation with the cribriform plate was measured and grouped according to Gera classification based on the hypothetical risk of iatrogenic injury. Analysis of these measurements was conducted. Results A positive correlation was found between frontal sinus volume and lateral lamella angle. Hyperplastic frontal sinuses were the most prevalent followed by middle-sized sinuses. 5% of the frontal sinuses were aplastic. Lateral lamella angles ranging from 45 to 80 degrees (Gera class II) were the most common. Aplastic and hypoplastic frontal sinuses were common in subjects with less than 45 degrees lateral lamella angles (Gera class III). Males had significantly higher frontal sinus volumes and lateral lamella angles than females, while the influence of age was insignificant. Lateral lamella angles were significantly higher on the left side. Conclusion The frontal sinus volume affects the lateral lamella angle. Larger frontal sinuses are associated with higher lateral lamella angles and vice versa. Understanding this anatomical relationship can help prevent surgical complications.

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Lateral Lamella of Cribriform Plate (LLCP): A Computed Tomography Radiological Analysis

Cited by 2 publications

References 18 publications

Diagnostic accuracy of CT scans in allergic fungal sinusitis: A cross sectional study

Diagnostic accuracy of CT scans in allergic fungal sinusitis: A cross sectional study

Computed Tomography Volumetric Analysis of Frontal Sinus Pneumatization and its Effect on Lateral Lamella Angle

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