Dehiscence of the Lamina Papyracea of the Ethmoid Bone

Gabriel Huguet Llull; Marta Mesalles Ruiz; Xavier González Compta

doi:10.1016/j.otoeng.2018.03.004

Crayon in the Orbit and Sinuses in a Pediatric Patient

Ear Nose & Throat Journal ◽

10.1177/01455613211018582 ◽

2021 ◽

pp. 014556132110185

Author(s):

Michela Borrelli ◽

Kristen A. Echanique ◽

Jeffrey Koempel ◽

Elisabeth H. Ference

Keyword(s):

Cerebrospinal Fluid ◽

Skull Base ◽

Pediatric Patient ◽

Cerebrospinal Fluid Leak ◽

Ethmoid Sinus ◽

Rare Occurrence ◽

Lamina Papyracea ◽

The Right ◽

Fluid Leak ◽

Type Of Injury

Penetrating transorbital injury with skull base involvement is a rare occurrence from a crayon. We report a case of a 2-year-old male who sustained a penetrating crayon injury through the right orbit and lamina papyracea into the posterior ethmoid sinus complicated by cerebrospinal fluid leak. There have been no other reported cases of this type of injury by a crayon.

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Protrusion of Orbital Content through Dehiscence of Lamina Papyracea Mimics Ethmoiditis: A Case Report

Otolaryngology ◽

10.1067/mhn.2003.105 ◽

2003 ◽

Vol 128 (3) ◽

pp. 433-435 ◽

Cited By ~ 1

Author(s):

Ting-Kuang Chao

Keyword(s):

Case Report ◽

Lamina Papyracea ◽

Orbital Content

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Bilateral Choanal Atresia Associated with Malformation of the Anterior Skull Base: Embryogenesis and Clinical Implications

Annals of Otology Rhinology & Laryngology ◽

10.1177/000348949210101106 ◽

1992 ◽

Vol 101 (11) ◽

pp. 916-919 ◽

Cited By ~ 16

Author(s):

Michael E. Dunham ◽

Robert P. Miller

Keyword(s):

Skull Base ◽

Choanal Atresia ◽

Three Dimensional ◽

Anterior Skull Base ◽

Preoperative Imaging ◽

Clinical Implications ◽

High Resolution Computed Tomography ◽

Ethmoid Bone ◽

Intracranial Complications ◽

Skull Base Defect

A number of craniofacial and systemic malformations have been described in association with choanal atresia. We report a case of bilateral choanal atresia associated with congenital absence of the cribriform plate, crista galli, and perpendicular plate of the ethmoid bone. The anterior skull base defect was detected by using high-resolution computed tomography with three-dimensional reconstructions. The findings support the mesodermal flow theory of choanal atresia, in which there is excess migration of neural crest cells into the developing nasal septum and posterior choanae. This occurs at the expense of cells that would otherwise form the rest of the ethmoid complex. Clinical implications include the need for adequate preoperative imaging of the anterior skull base and consideration of potential intracranial complications during surgical repair.

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A Radiological Study of Anatomical Variations of Uncinate Process

Clinical Rhinology An International Journal ◽

10.5005/jp-journals-10013-1268 ◽

2016 ◽

Vol 9 (2) ◽

pp. 59-61

Author(s):

Shrinath D Kamath Patla ◽

Pretty Rathnakar ◽

Vadisha S Bhat ◽

Jayaramesh LNU

Keyword(s):

Clinical Significance ◽

Paranasal Sinuses ◽

Intraoperative Complications ◽

Anatomical Variations ◽

Uncinate Process ◽

Ct Scans ◽

Radiological Study ◽

Lamina Papyracea ◽

Endoscopic Surgeon ◽

Coronal Section

ABSTRACT Aim (a) To study the variations in the superior attachment of uncinate process. (b) Incidence of pneumatization of uncinate process was also studied. Materials and methods A total 200 sides of 100 CT scans of paranasal sinuses coronal section were studied for variations in the superior insertion of uncinate process using Landsberg and Friedman classification. Incidence of pneumatization of uncinate process was also studied. Results In our study out of 200 sides, type 6 attachment was commonest (41%) followed by types 1 and 2. Pneumatization of the uncinate was seen in very small percentage of cases. Conclusion Lateral insertion of uncinate (lamina papyracea + aggar nassi) is the commonest variant followed by the insertion into the skulbase. Pneumatization of uncinate is rare. Clinical significance Though the inferior attachment of the uncinate is almost constant the superior attachment has several variations, the knowledge of which is very important for the endoscopic surgeon to avoid intraoperative complications. How to cite this article Patla SDK, Rathnakar P, Bhat VS, Jayaramesh. A Radiological Study of Anatomical Variations of Uncinate Process. Clin Rhinol An Int J 2016;9(2):59-61.

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