RT Journal Article SR Electronic T1 Adolescent with facial swelling JF Archives of disease in childhood - Education & practice edition JO Arch Dis Child Educ Pract Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 230 OP 232 DO 10.1136/archdischild-2019-317654 VO 106 IS 4 A1 Wen Shen Looi A1 Si Hui Goh A1 Colin Jingxian Tan A1 Kheng Wei Yeoh A1 Michaela Su-Fern Seng YR 2021 UL http://ep.bmj.com/content/106/4/230.abstract AB Background A previously well 15-year-old girl presented with a 2-month history of facial swelling that progressively worsened to involve the neck. There was associated dyspnoea, orthopnoea, headache and throat discomfort. Two weeks before presentation, the patient had an episode of fever for 5 days. On examination, vital signs were within normal limits. Swelling, plethora and venous distension of the face and neck were apparent (figure 1).Figure 1 (A) Patient before the onset of symptoms. (B) Patient at presentation.QuestionsWhat is the most likely diagnosis?Superior vena cava syndromeAngioedemaAnasarcaDiphtheriaDescribe the chest X-ray (figure 2).What are the acute concerns?What investigations would you order?Figure 2 Chest X-ray of the patient at presentation.Questions Answers can be found on page 02.