PT - JOURNAL ARTICLE AU - Azara Janmohamed AU - Aula Abbara AU - Rohma Ghani AU - Anne Kinderlerer AU - Thava Sritharan AU - James Hatcher TI - Pneumomediastinum complicating adult-onset measles AID - 10.7861/clinmedicine.18-5-403 DP - 2018 Oct 01 TA - Clinical Medicine PG - 403--405 VI - 18 IP - 5 4099 - http://www.rcpjournals.org/content/18/5/403.short 4100 - http://www.rcpjournals.org/content/18/5/403.full SO - Clin Med2018 Oct 01; 18 AB - Adult-onset measles is rare in the UK, particularly in patients with a complete vaccination history.We present a case of a UK-born patient who received all childhood vaccinations, had no history of recent travel or unwell contacts who was diagnosed with measles complicated by pneumomediastinum. This case highlights the need to consider measles in any patient presenting with a constellation of a macular rash, fever and conjunctivitis, regardless of vaccination status. The nature of the rash can provide an important clue to the diagnosis. Liaison with infection specialists facilitates early diagnosis, allowing for appropriate initial investigations, improving clinical management and early infection control precautions being instituted.