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Int. arch. otorhinolaryngol. (Impr.) ; 24(1): 38-46, Jan.-Mar. 2020. tab, graf
Article in English | LILACS | ID: biblio-1090545


Abstract Introduction The clinical relevance of the anatomy and variations of the anterior ethmoidal artery (AEA) is outstanding, considering its role as a landmark in endoscopic surgery, its importance in the therapy of epistaxis, and the high risks related to iatrogenic injuries. Objective To provide an anatomical description of the course and relationships of the AEA, based on direct computed-tomography (CT)-based 3D volume rendering. Methods Direct volume rendering was performed on 18 subjects who underwent (CT) with contrast medium for suspected cerebral aneurism. Results The topographical location of 36 AEAs was assessed as shown: 10 dehiscent (27.8%), 20 intracanal (55.5%), 6 incomplete canals (16.7%). Distances from important topographic landmarks are reported. Conclusion This work demonstrates that direct 3D volume rendering is a valid imaging technique for a detailed description of the anterior ethmoidal artery thus representing a useful tool for head pre-operatory assessments.

Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Arteries/anatomy & histology , Arteries/diagnostic imaging , Ethmoid Sinus/blood supply , Ethmoid Sinus/diagnostic imaging , Multidetector Computed Tomography/methods , Tomography, X-Ray Computed/methods , Intracranial Aneurysm/diagnostic imaging , Retrospective Studies , Skull Base/anatomy & histology , Skull Base/blood supply , Skull Base/diagnostic imaging , Contrast Media , Imaging, Three-Dimensional
Rev. otorrinolaringol. cir. cabeza cuello ; 77(3): 281-288, set. 2017. ilus
Article in Spanish | LILACS | ID: biblio-902777


El osteoma es el tumor más frecuente de los senos paranasales, habitualmente asintomático debido a su lento crecimiento, sin embargo, pueden desarrollarse síntomas dependiendo del tamaño, localización y extensión, con potencial compromiso de órbita y cerebro. La cirugía está indicada en casos sintomáticos pudiendo realizarse abordaje externo, endoscópico o combinado. Presentamos un caso de osteoma etmoidal con compromiso orbitario resuelto, manejado por medio de la cirugía endoscópica nasal, con apoyo de navegación.

The osteoma is the most common tumor of the paranasal sinuses, is usually asymptomatic because of their slow growth, however, may develop symptoms depending on the size, location and extent, with potential compromise of orbit and brain. Surgery is indicated in symptomatic cases, with external, endoscopic or combined approach. We present a case of ethmoidal osteoma with orbital involvement managed by endoscopic image guided surgery.

Humans , Male , Adolescent , Osteoma/surgery , Bone Neoplasms/surgery , Paranasal Sinus Neoplasms/surgery , Endoscopy/methods , Osteoma/diagnostic imaging , Bone Neoplasms/diagnostic imaging , Paranasal Sinus Neoplasms/diagnostic imaging , Surgery, Computer-Assisted , Ethmoid Sinus/surgery , Ethmoid Sinus/diagnostic imaging , Frontal Sinus/surgery , Frontal Sinus/diagnostic imaging
Rev. otorrinolaringol. cir. cabeza cuello ; 76(3): 314-319, dic. 2016. ilus
Article in Spanish | LILACS | ID: biblio-845632


La celdilla supra-órbito-etmoidal es una variación anatómica que se presenta con diferente frecuencia para las distintas poblaciones. Representa un desafío al realizar cirugía endoscópica funcional del seno frontal debido a que su presencia dificulta el drenaje adecuado del receso del frontal mismo y puede ser confundida con el seno. La celdilla supra-órbito-etmoidal presenta relaciones espaciales constantes con la arteria etmoidal anterior, sirviendo como marcador anatómico confiable para el abordaje quirúrgico. Se destaca la importancia de considerar la presencia de tabiques óseos en el seno frontal en el estudio imagenológico que puedan sugerir la presencia de la celdilla supra-órbito-etmoidal. Se presenta el caso clínico de un paciente que consulta por proptosis del ojo derecho debido a un proceso expansivo por mucocele localizado en dicha variante anatómica.

The supraorbital ethmoid cell its an anatomical variation with different frecuency for diverse populations. It represents a challenge for the endoscopical functional :surgery of the frontal sinus. The supraorbital ethmoid cell presents an estable anatomical relationship with the anterior ethmoidal artery, serving as a dependable anatomical marker for the surgical approach. We stand out the importance to consider the presence of bony septations in the frontal sinus that might suggest the presence of the supraorbital ethmoid cell. We introduce a clinical case from a patient who had an expansive process from a mucocele in the supraorbital ethmoid cell.

Humans , Male , Adult , Ethmoid Sinus/diagnostic imaging , Ethmoid Sinus/pathology , Mucocele/surgery , Orbit/diagnostic imaging , Orbit/pathology , Endoscopy , Exophthalmos , Frontal Sinus/diagnostic imaging , Frontal Sinus/pathology
Article in English | IMSEAR | ID: sea-140150


Here, a case has been reported of a road traffic accident with multiple glass pieces arranged in an unusual pattern in the left maxillary sinus, ethmoid sinus, nasopharynx and medial side of the orbit, as seen in the radiographs. Combined surgical approach through the existing wound and endoscopic surgery was successfully used to remove nearly all the glass pieces.

Accidents, Traffic , Adult , Ethmoid Sinus/diagnostic imaging , Foreign Bodies/diagnostic imaging , Glass , Humans , Male , Maxillary Fractures/diagnostic imaging , Maxillary Sinus/diagnostic imaging , Nasal Cavity/injuries , Nasopharynx/diagnostic imaging , Orbit/diagnostic imaging , Tomography, X-Ray Computed/methods
Iranian Journal of Radiology. 2009; 6 (3): 137-139
in English | IMEMR | ID: emr-125377


We report a 4-year-old girl complaining of diplopia and a small lump in the medial side of the left orbit. CT scan showed a mass at the anterior ethmoid sinus with erosion and expansion. The mass was excised and the diagnosis was solitary infantile myofibroma [IM]

Humans , Myofibroma/diagnosis , Ethmoid Sinus/diagnostic imaging , Tomography, X-Ray Computed , Paranasal Sinus Neoplasms/diagnosis
Indian J Ophthalmol ; 1991 Oct-Dec; 39(4): 188-9
Article in English | IMSEAR | ID: sea-71021


A case of blow out fracture of the medial wall and floor of the orbit with herniation of the eyeball into the ethmoid sinus diagnosed on CT scan is reported. To the best of our knowledge there is no previous report of prolapse of eyeball into the ethmoid sinus.

Adult , Craniocerebral Trauma/complications , Ethmoid Sinus/diagnostic imaging , Eye Diseases/diagnostic imaging , Facial Injuries/complications , Hernia/diagnostic imaging , Humans , Male , Orbital Fractures/etiology , Tomography, X-Ray Computed
Indian J Lepr ; 1988 Apr; 60(2): 285-9
Article in English | IMSEAR | ID: sea-54674


Thirty patients of lepromatous leprosy have been studied by radiological investigation for affection of paranasal sinuses. It has been found that leprosy involves all groups of sinuses and maxillary antrum is found to be more commonly affected. Diffuse hypertrophy type of lesion is more commonly recorded in maxillary antrum, in x-ray of paranasal sinuses. The clinical significance and importance of extension of disease in the sinuses is discussed in the light of available literature.

Ethmoid Sinus/diagnostic imaging , Frontal Sinus/diagnostic imaging , Humans , Leprosy, Lepromatous/diagnostic imaging , Leprosy, Tuberculoid/diagnostic imaging , Maxillary Sinus/diagnostic imaging , Paranasal Sinus Diseases/diagnostic imaging