title: Intraorbital Cystic Lesions: An Imaging Spectrum.
abstract: Presence of a cyst or a cystic component in an intraorbital mass often narrows the list of differential diagnoses to specific entities. Such a lesion in the orbit may arise from structures within the orbit, globe, and lacrimal system or from neighboring paranasal sinuses or meninges. Common congenital and developmental lesions encountered within the orbit include dermoids and epidermoids, and infrequently coloboma. Parasitic cysts (cysticercus), orbital abscess, mucocele, and vascular lesions are the most common acquired pathologies giving rise to fluid-containing lesions within the orbit. The role of a radiologist is crucial in expediting the diagnosis of orbital lesions with the help of characteristic imaging features on ultrasound, computed tomography, or magnetic resonance imaging. It also helps in identifying complications in others where formulation of an early and effective management strategy is vital for preserving vision.
authors.affiliation: Department of Radiodiagnosis, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Shivani
authors.initials: S
authors.lastname: Pahwa
authors.affiliation: Department of Radiodiagnosis, RP Centre of Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India. Electronic address: drssharma@hotmail.com.
authors.forename: Sanjay
authors.initials: S
authors.lastname: Sharma
authors.affiliation: Department of Radiodiagnosis, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Chandan J
authors.initials: CJ
authors.lastname: Das
authors.affiliation: Department of Radiodiagnosis, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Ekta
authors.initials: E
authors.lastname: Dhamija
authors.affiliation: Department of Community Ophthalmology, RP Centre of Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Saurabh
authors.initials: S
authors.lastname: Agrawal
mesh_terms: D000038:Abscess / Q000175:diagnosis; D000328:Adult; D002648:Child; D002675:Child, Preschool; D002828:Choristoma / Q000175:diagnosis; D003103:Coloboma / Q000000981:diagnostic imaging; D003229:Conjunctival Diseases / Q000175:diagnosis; D003551:Cysticercosis / Q000175:diagnosis; D003560:Cysts / Q000151:congenital / Q000175:diagnosis*; D004443:Echinococcosis / Q000175:diagnosis; D005260:Female; D006801:Humans; D007765:Lacrimal Apparatus; D008202:Lymphangioma / Q000151:congenital / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging; D008297:Male; D008588:Meningocele / Q000000981:diagnostic imaging; D009078:Mucocele / Q000175:diagnosis; D009373:Neoplasms, Germ Cell and Embryonal / Q000175:diagnosis; D009916:Orbital Diseases / Q000151:congenital / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed; D014648:Varicose Veins / Q000175:diagnosis; D055815:Young Adult