Tamer, CengaverOksuz, HuseyinHakverdi, SibelKarazincir, SinemBalcı, AliYaldiz, Mehmet2024-09-182024-09-1820070008-4182https://doi.org/10.3129/canjophthalmol.06-095https://hdl.handle.net/20.500.12483/11486Case report: We present the clinical, radiologic, and histopathologic features of an orbital mass in a 10-year-old boy. Immunohistochemistry confirmed the diagnosis of primary peripheral primitive neuroectodermal tumour. Comments: This recently recognized rare tumour of the orbit should be considered in the differential diagnosis of hypercellular small round cell tumour of the orbit.eninfo:eu-repo/semantics/closedAccessorbitaprimary primitive neuroectodermal tumorimmunohistochemical stainsPrimary peripheral primitive neuroectodermal tumour of the orbitArticle42113814010.3129/canjophthalmol.06-095173612602-s2.0-33947170580Q2WOS:000245794000028Q3