PMID- 32153680 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 1878-5409 (Electronic) IS - 1878-5409 (Linking) VI - 21 IP - 3 DP - 2020 Mar TI - Intimal sarcoma of the left atrium presenting with transient ischaemic attack - A case report and review of the literature. PG - 89-92 LID - 10.1016/j.jccase.2019.10.006 [doi] AB - A 31-year-old female with a history of polycystic ovary syndrome and two recent miscarriages presented with symptoms of a transient ischemic attack. Echocardiography to assess for possible embolic source identified a 4.8 cm left atrial mass, presumed to be an atrial myxoma. At surgery the tumor was suspicious of malignancy. Histopathology revealed a heterogeneous hyper- and hypo-cellular spindle cell tumor showing mild atypia. Atrial myxoma markers were negative. The Ki67 proliferation factor was 30% and fluorescence in situ hybridization (FISH) analysis showed MDM2 amplification. Expert review confirmed the morphological, immunohistochemical, and FISH features to be of a cardiac intimal sarcoma. Recent improvements in imaging, surgery, and molecular testing have increased diagnoses of primary cardiac intimal sarcomas. Here we discuss the pathological and clinical implications of these rare atrial myxoma mimics. . CI - Crown Copyright (c) 2019 Published by Elsevier Ltd on behalf of Japanese College of Cardiology. All rights reserved. FAU - Grant, Lucy AU - Grant L AD - Black Country Pathology Services, New Cross Hospital, Wolverhampton, UK. FAU - Morgan, Ian AU - Morgan I AD - New Cross Hospital, Wolverhampton, UK. FAU - Sumathi, VaiyaPuri AU - Sumathi V AD - Royal Orthopaedic Hospital, Birmingham, UK. FAU - Salmons, Nabeel AU - Salmons N AD - Black Country Pathology Services, New Cross Hospital, Wolverhampton, UK. LA - eng PT - Case Reports DEP - 20191116 PL - Japan TA - J Cardiol Cases JT - Journal of cardiology cases JID - 101549579 PMC - PMC7054658 OTO - NOTNLM OT - Atrial OT - Cardiac OT - Intimal sarcoma OT - MDM2 OT - Mesenchymal EDAT- 2020/03/11 06:00 MHDA- 2020/03/11 06:01 PMCR- 2019/11/16 CRDT- 2020/03/11 06:00 PHST- 2019/05/14 00:00 [received] PHST- 2019/09/07 00:00 [revised] PHST- 2019/10/07 00:00 [accepted] PHST- 2020/03/11 06:00 [entrez] PHST- 2020/03/11 06:00 [pubmed] PHST- 2020/03/11 06:01 [medline] PHST- 2019/11/16 00:00 [pmc-release] AID - S1878-5409(19)30106-9 [pii] AID - 10.1016/j.jccase.2019.10.006 [doi] PST - epublish SO - J Cardiol Cases. 2019 Nov 16;21(3):89-92. doi: 10.1016/j.jccase.2019.10.006. eCollection 2020 Mar.