Kiratli H, Bilgiĉ S, Gedikoğlu G, Ruacan S, Ozmert E. Primitive neuroectodermal tumor of the orbit in an adult. A case report and literature review.
Ophthalmology 1999;
106:98-102. [PMID:
9917788 DOI:
10.1016/s0161-6420(99)90020-9]
[Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
OBJECTIVE
The authors describe the salient clinical, radiologic, and histopathologic features of an orbital primitive neuroectodermal tumor in a 28-year-old man. This is an extremely rare tumor of the orbit, previously reported exclusively in children.
DESIGN
Case report.
INTERVENTION
Excisional biopsy of the tumor en bloc was performed.
MAIN OUTCOME MEASURES
Histopathologic examination was performed by standard techniques and immunohistochemical stains on formaldehyde-fixed, paraffin-embedded tumor tissues.
RESULTS
Histologic examination of the sections of the tumor showed small, blue, round cells with occasional Homer-Wright rosette formations. The tumor cells stained positively with neuron-specific enolase and vimentin.
CONCLUSIONS
This newly recognized, highly unusual peripheral primitive neuroectodermal tumor should be considered in the differential diagnosis of hypercellular, small, round cell tumor of the orbit in adults.
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