TY - JOUR T1 - Enlarging left atrial haemangioma in a patient with Cowden syndrome JF - BMJ Case Reports JO - BMJ Case Reports DO - 10.1136/bcr-2019-230088 VL - 12 IS - 7 SP - e230088 AU - Anthony Lamanna AU - Ruth P Lim AU - Lee Pheng Yap AU - Julian Maingard AU - Siven Seevenayagam Y1 - 2019/07/01 UR - http://casereports.bmj.com/content/12/7/e230088.abstract N2 - A 53-year-old female patient known to have Cowden disease (PTEN mutation positive) was found to have a mass at the left atrium on a CT coronary angiography performed as part of a preoperative workup for an unrelated surgery. Further radiological characterisation of the lesion was achieved using MRI and positron emission tomography. Interval growth prompted surgical excision; however, surgery was expedited after the patient presented with haemopericardium and cardiac tamponade. The patient was discharged home 8 days postoperatively, and no intraoperative or postoperative complications were encountered. A diagnosis of cavernous haemangioma was made on histology. ER -