TY - JOUR T1 - Hamman’s crunch: a forgotten clue to the diagnosis of spontaneous pneumomediastinum JF - BMJ Case Reports DO - 10.1136/bcr-2018-225099 VL - 2018 SP - bcr-2018-225099 AU - Andre Rosa Alexandre AU - Natalia Freitas Marto AU - Pedro Raimundo Y1 - 2018/04/09 UR - http://casereports.bmj.com/content/2018/bcr-2018-225099.abstract N2 - A 23-year-old Caucasian woman with a thin and tall body habitus presented to the emergency department with dizziness and chest pain. The pain had begun 12 hours before presentation without relation to exertion or trauma, radiating continuously to the neck and dorsum and being exacerbated by coughing or taking deep breaths.The patient was previously healthy except for an episode of flu-like illness 2 weeks before presentation. She was not taking any medication and was a non-smoker. She had no relevant family history.On clinical examination, she was conscious and reactive, afebrile and haemodynamically stable. She was eupnoeic and her oxygen saturation on pulse oximetry was 100%. Her breath sounds were normal on pulmonary auscultation, … ER -