Radiological Study of the Orbit: What must the Radiologist see? CT and MRI Findings

This poster was previously presented in Spanish at the 2010 Congreso Nacional SERAM (A Coruña)

Congress:

ECR 2012

Poster Number:

C-0715

Type:

Scientific Exhibit

Keywords:

Head and neck, Eyes, Trauma, CT, MR, Ultrasound, Diagnostic procedure, Foreign bodies, Neoplasia

Authors:

M. A. Martin Perez¹, J. M. Millán Juncos², R. Blanco Hernández¹, I. Martín García¹, C. Martinez Lara¹; ¹Zamora/ES, ²Madrid/ES

DOI:

10.1594/ecr2012/C-0715

DOI-Link:

https://dx.doi.org/10.1594/ecr2012/C-0715

Fig. 1: Coverpage

Fig. 5: Fig 5. Frontal bone (Orbital process) (3) Lesser wing of sphenoid...

Fig. 8: Fig.8. Frontal projection (Caldwell view) 1. Zygomaticofrontal suture 2....

$Fig. 15: Fig.15. Wassmund III fracture$

Fig. 15: Fig.15. Wassmund III fracture

Purpose

Describe the usefulness of CT and MRI in orbital pathology more frequently. Demonstrate the radiographic features of acute orbital pathology traumatic or not traumatic, tumors and inflammatory ocular and extraocular disease.

Methods and Materials

We describe theradiological manifestationsusing CT andMR oforbitaltraumatic injuries, suspectedorforeign body,tumor pathologyof theeye(melanoma,choroidal osteoma) andintraconic spaceprimary disease(lymphoma,meningioma,optic nerveglioma, hemangioma),metastaticor secondaryinfiltrationvicinity offacialand intracranial invasive lesions. Radiological findingsare illustratedinvascularand inflammatorydiseaseof the extraocularmuscles,including basicprocesses such asmyositis,Brownsyndrome, orthyroid ophthalmopathy.Also inthis sectionwe emphasize thecontribution of imagingin the evaluation ofthe different causes ofexophthalmos. In our work, we conducted asystematic classificationof the pathology, broken downby location: -Facial bonesandorbital walls (Continent). - Orbital content - Surrounding structures (who sufferdisease thatsecondarilyaffectthe orbit)

Results

ANATOMY OF THE ORBIT 1.- ORBITAL WALLS (Figures 4 & 5) ORBITAL ROOF - Frontal bone (Orbital process) (3) - Lesser wing of sphenoid (9) Supraorbital incisure (10) ORBITAL FLOOR - Orbital plate of maxillary bone (1) - Maxillary process of zygomatic bone (2b) - Orbital process of palatinal bone (11) Infraorbital foramen (7). Inferior orbital fissure (8) MEDIAL WALL - Frontal process of maxillary bone (Anterior) (5) - Lacrimal bone (Posterior)(6) - Lamina papyracea of Ethmoid bone (4) - Lateral aspect of spheniod body...

Conclusion

Imaging techniquesconstitute a fundamental toolin the study oftraumatic pathology andorbital fractures. Follow-up assessmentin suspectedforeign bodyor perforation ofeye. CTand MRIare essentialin assessingtumor andinflammatory conditions. CTandMRIareessential tools inthe study and monitoringof the evolution ofspecific pathologiesaffecting theextraocularmuscles The role of theradiologistis essentialin the evaluation oflocoregionalinvasion of nasosinusalor intracranialdisordes that secondarily affect the orbitforsurgical planning.

References

Richard A. Hopper, Shahram Salemy, and Raymond W. Sze. Diagnosis of Midface Fractures with CT: What the Surgeon Needs to Know Radiographics May-June 2006 26:783-793. Ellen M. Chung, Charles S. Specht, and Jason W. Schroeder. Pediatric Orbit Tumors and Tumorlike Lesions: Neuroepithelial Lesions of the Ocular Globe and Optic Nerve Radiographics July-August 2007 27:1159-1186. Mafee MF et al. CT in the evaluation of the orbit and the bony interorbital distance AJNR 1986;7:265 Faerber EN, Poussaint TY. The orbit. In: Kuhn JP, Slovis TL, Haller JO,...

Personal Information

MA Martín-Pérez, JM Millán-Juncos*, R Blanco-Hernández, I Martín-García, BR Arenas-García, C Martínez-Lara HOSPITAL VIRGEN DE LA CONCHA. COMPLEJO ASISTENCIAL DE ZAMORA. SPAIN. *HOSPITAL UNIVERSITARIO 12 DE OCTUBRE*. MADRID. SPAIN Mail of contact: [email protected]