CT and MR imaging of the pediatric orbit
| Autor: | Danielle K. Boal, K. D. Eggli, K D Hopper, J. L. Sherman |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
medicine.medical_specialty
Eye Diseases genetic structures Pediatrics Hemangioma Lymphangioma Orbital Diseases medicine Humans Radiology Nuclear Medicine and imaging Eye Abnormalities Coats' disease Orbital Fracture Rhabdomyosarcoma medicine.diagnostic_test business.industry Magnetic resonance imaging medicine.disease Magnetic Resonance Imaging eye diseases medicine.anatomical_structure Orbital Neoplasms sense organs Radiology Orbital cellulitis Tomography X-Ray Computed business Orbit Orbit (anatomy) |
| Zdroj: | RadioGraphics. 12:485-503 |
| ISSN: | 1527-1323 0271-5333 |
| DOI: | 10.1148/radiographics.12.3.1609140 |
| Popis: | Orbital abnormalities encountered in the pediatric population differ substantially from those found in adult patients. Retinoblastoma, the most serious intraocular tumor, is often difficult to diagnose, but use of computed tomography (CT) (which reveals the characteristic focal calcification) and magnetic resonance (MR) imaging allows this tumor to be differentiated from pseudogliomas, such as Coats disease, and retrolental fibroplasia. CT and MR imaging help in the differentiation of orbital cellulitis from preseptal, lacrimal, and eyelid infectious processes and of orbital pseudotumor from Graves disease. In cases of orbital trauma, CT is excellent for detecting orbital fractures and metallic foreign bodies; MR imaging is better for depicting ocular and optic nerve injuries. Both modalities allow the differentiation of rhabdomyosarcoma from dermoid, cavernous hemangioma, and lymphangioma and provide helpful information for the diagnosis of many other tumors. Since CT and MR imaging have widely expanded the capabilities of orbital imaging, it is more important than ever before for radiologists to understand pediatric orbital disease. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|