title: Orbital schwannoma: a clinicopathologic study.
abstract: The aim of the study was to study the clinical, radiological and histopathological characteristics of orbital schwannomas. It is a retrospective study conducted at a tertiary eye care hospital. A review of histopathological records of the orbital tumors operated between 1993 and 2011 was done. The clinical, imaging and histopathological details of cases of orbital schwannoma were analyzed. Forty-nine cases of orbital schwannomas identified. The age ranged from 8 to 65 years with a female preponderance. The median duration of symptoms was 3 years. Computed tomography findings varied from a hypodense to hyperdense lesion with nil to marked contrast enhancement. USG demonstrated a defined lesion with variable internal reflectivity. Varied proportions of Antoni A and Antoni B areas were found on histopathology of the masses. Hypodense or cystic areas on imaging significantly correlated with Antoni B areas on histopathology. Orbital schwannoma is a rare tumor. The incidence of schwannoma in our institution is 6.5 %. Variable imaging features were found. The definite diagnosis can be established on the basis of histopathological and immunohistochemical studies.
authors: Oculoplasty and Paediatric Ophthalmology Services, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
authors: Neelam
authors: N
authors: Pushker
authors: Saurbhi
authors: S
authors: Khurana
authors: Seema
authors: S
authors: Kashyap
authors: Seema
authors: S
authors: Sen
authors: Dinesh
authors: D
authors: Shrey
authors: Rachna
authors: R
authors: Meel
authors: Bhavna
authors: B
authors: Chawla
authors: Mandeep S
authors: MS
authors: Bajaj
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003560:Cysts / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009442:Neurilemmoma / Q000000981:diagnostic imaging / Q000473:pathology*; D009918:Orbital Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D055815:Young Adult