RT Journal Article SR Electronic T1 Novel cavernous sinus TSC2/JAK3 mutant hemangioendothelioma in a teenager JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e234677 DO 10.1136/bcr-2020-234677 VO 13 IS 3 A1 Scott Sun A1 Katayoon Shayan A1 Michael L Levy A1 John Ross Crawford YR 2020 UL http://casereports.bmj.com/content/13/3/e234677.abstract AB