title: Giant extraosseous Ewing sarcoma of the lung in a young adolescent female--a case report.
abstract: Extraosseous Ewing sarcoma is a rare soft tissue tumour that is histologically indistinguishable from the bone Ewing sarcoma. The translocation involving chromosome 22 along with CD 99 expression is pathognomonic and is useful in differentiating from other small round cell tumours. Primary lung involvement by this malignant tumour is very uncommon and up to this date only ten cases have been reported. We report a further case in a 15 year-old-female who presented with a huge lung mass causing an opaque haemithorax.
authors.affiliation: Department of Radiodiagnosis, Jawaharlal Nehru Medical College, AMU, Aligarh-202002, India. drazfarsiddiqui@gmail.com
authors.forename: Mohammed Azfar
authors.initials: MA
authors.lastname: Siddiqui
authors.forename: Jamal
authors.initials: J
authors.lastname: Akhtar
authors.forename: Mohammad
authors.initials: M
authors.lastname: Shameem
authors.forename: Ummul
authors.initials: U
authors.lastname: Baneen
authors.forename: Samreen
authors.initials: S
authors.lastname: Zaheer
authors.forename: Mohammad
authors.initials: M
authors.lastname: Shahid
mesh_terms: D000293:Adolescent; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology; D018241:Neuroectodermal Tumors, Primitive, Peripheral / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology; D014057:Tomography, X-Ray Computed