title: Mediastinal epithelioid haemangioendothelioma: a rare mediastinal tumour.
abstract: We report the case of a 35-year-old patient with an incidental finding of an asymptomatic large (9.5 cm in diameter) anterior mediastinal tumour. Radiological findings favoured the diagnosis of a benign mediastinal teratoma. During surgical resection, we found a tumour adhering to the surrounding tissues, and encompassing the innominate vein which was totally occluded. Total tumoural exeresis was performed as well as the double cross-section of the innominate vein. Postoperatively, there was no left upper limb swelling, probably because of a chronic occlusion of the innominate vein. The hospital stay was uneventful. Immunohistochemistry diagnosed a mediastinal 'epithelioid haemangioendothelioma', which is a tumour of vascular origin. We believe that the tumour took origin from the innominate vein and invaded the anterior mediastinum. After a simple radiological follow-up, the patient is in complete remission 30 months after the operation. We present the case of this patient with the iconography, along with a review of the available literature concerning mediastinal epithelioid haemangioendotheliomas.
authors.affiliation: Department of Thoracic Surgery, Strasbourg University Hospital, Strasbourg, France.
authors.forename: Ziad
authors.initials: Z
authors.lastname: Mansour
authors.forename: Agnès
authors.initials: A
authors.lastname: Neuville
authors.forename: Gilbert
authors.initials: G
authors.lastname: Massard
mesh_terms: D000328:Adult; D016121:Brachiocephalic Veins / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D003951:Diagnostic Errors; D018323:Hemangioendothelioma, Epithelioid / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D033162:Incidental Findings; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D009361:Neoplasm Invasiveness; D056346:Sternotomy; D013724:Teratoma / Q000175:diagnosis; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D019043:Vascular Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014656:Vascular Surgical Procedures