title: Posttraumatic active bleeding of mediastinal mixed vascular malformation: a case report.
abstract: A case of an actively bleeding mediastinal mass in a 4-year-old boy who sustained multitrauma is described. A computed tomography (CT) scan of the chest upon admission demonstrated a mediastinal mass, which enlarged significantly as seen by repeat CT scan at 3 days with a concomitant drop in serum hemoglobin levels. The lesion was excised, and pathological examination established the diagnosis of a lymphatic-venous malformation containing bloody fluid. Lymphatic-venous malformations are rare vascular malformations and are usually found in the head and neck and less commonly at other sites. Spontaneous bleeding is a known complication, and there are few reports describing posttraumatic hemorrhage. Our case is the first description in the English medical literature of a posttraumatic bleeding mediastinal mixed vascular malformation and includes sequential CT scans illustrating the dynamic nature of hemorrhage.
authors.affiliation: Department of Diagnostic Imaging, Rambam Medical Center, Ha'aliya Hashniya 8, Haifa 31096, Israel. m_soudack@rambam.health.gov.il
authors.forename: Michalle
authors.initials: M
authors.lastname: Soudack
authors.forename: Eugene
authors.initials: E
authors.lastname: Vladovski
authors.forename: Ludmilla
authors.initials: L
authors.lastname: Guralnik
authors.forename: Alon
authors.initials: A
authors.lastname: Ben-Nun
authors.forename: Ahuva
authors.initials: A
authors.lastname: Engel
mesh_terms: D000058:Accidental Falls; D018376:Cardiovascular Abnormalities / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D002675:Child, Preschool; D006470:Hemorrhage / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D008297:Male; D008482:Mediastinum; D009104:Multiple Trauma; D020205:Skull Fracture, Basilar; D013898:Thoracic Injuries / Q000150:complications* / Q000175:diagnosis; D014057:Tomography, X-Ray Computed