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Sudden Death Due to Cystic Tumor of the Atrioventricular Node and Fibromuscular Dysplasia Involving Branches of the Coronary Arteries. 2018

Silvia Farkašová Iannaccone, and Daniel Farkaš, and Alžbeta Ginelliová, and Marián Švajdler, and Ján Laco, and Ivo Šteiner, and Lucia Fröhlichová
From the *Department of Forensic Medicine, Faculty of Medicine, Pavol Jozef Šafárik University; †Medico-Legal and Pathological-Anatomical Department, Health Care Surveillance Authority, Košice, Slovak Republic; ‡Šikl's Department of Pathology, Medical Faculty Hospital, Charles University, Pilsen; §The Fingerland Department of Pathology, Faculty of Medicine and Faculty Hospital, Charles University, Hradec Králové, Czech Republic; and ‖Department of Pathology, Louis Pasteur University Hospital, Košice, Slovak Republic.

In this paper, we report the autopsy findings of a 42-year-old White male who was found deceased at his home by his brother in the early morning hours with a history of excessive alcohol consumption 1 day before his death. A medical record review revealed chronic alcohol use with alcohol dependence syndrome, hypertension, and cardiac arrhythmias by electrocardiogram 2 years prior. External examination revealed only a single bruise on the forehead. Internal examination revealed changes associated with chronic alcohol abuse and mild atherosclerosis. The lack of a cause of death at autopsy resulted in a dissection of the cardiac conduction system and the detection of a small cystic lesion at the atrioventricular node region. Microscopic examination revealed a cystic tumor of the atrioventricular node and fibromuscular dysplasia of the coronary artery branches near the sinoatrial and atrioventricular nodes. Based on the case history and autopsy findings, death was attributed to a fatal cardiac arrhythmia due to cystic tumor of the atrioventricular node with fibromuscular dysplasia of the coronary artery branches near the sinoatrial and atrioventricular nodes a possible contributing factor.

UI MeSH Term Description Entries
D008297 Male Males
D003331 Coronary Vessels The veins and arteries of the HEART. Coronary Arteries,Sinus Node Artery,Coronary Veins,Arteries, Coronary,Arteries, Sinus Node,Artery, Coronary,Artery, Sinus Node,Coronary Artery,Coronary Vein,Coronary Vessel,Sinus Node Arteries,Vein, Coronary,Veins, Coronary,Vessel, Coronary,Vessels, Coronary
D003560 Cysts Any fluid-filled closed cavity or sac that is lined by an EPITHELIUM. Cysts can be of normal, abnormal, non-neoplastic, or neoplastic tissues. Cyst
D003645 Death, Sudden The abrupt cessation of all vital bodily functions, manifested by the permanent loss of total cerebral, respiratory, and cardiovascular functions. Sudden Death
D005352 Fibromuscular Dysplasia An idiopathic, segmental, nonatheromatous disease of the musculature of arterial walls, leading to STENOSIS of small and medium-sized arteries. There is true proliferation of SMOOTH MUSCLE CELLS and fibrous tissue. Fibromuscular dysplasia lesions are smooth stenosis and occur most often in the renal and carotid arteries. They may also occur in other peripheral arteries of the extremity. Fibromuscular Dysplasia of Arteries,Arteries Fibromuscular Dysplasia,Arteries Fibromuscular Dysplasias,Dysplasia, Fibromuscular,Fibromuscular Dysplasias
D006331 Heart Diseases Pathological conditions involving the HEART including its structural and functional abnormalities. Cardiac Disorders,Heart Disorders,Cardiac Diseases,Cardiac Disease,Cardiac Disorder,Heart Disease,Heart Disorder
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000437 Alcoholism A primary, chronic disease with genetic, psychosocial, and environmental factors influencing its development and manifestations. The disease is often progressive and fatal. It is characterized by impaired control over drinking, preoccupation with the drug alcohol, use of alcohol despite adverse consequences, and distortions in thinking, most notably denial. Each of these symptoms may be continuous or periodic. (Morse & Flavin for the Joint Commission of the National Council on Alcoholism and Drug Dependence and the American Society of Addiction Medicine to Study the Definition and Criteria for the Diagnosis of Alcoholism: in JAMA 1992;268:1012-4) Alcohol Abuse,Alcoholic Intoxication, Chronic,Ethanol Abuse,Alcohol Addiction,Alcohol Dependence,Alcohol Use Disorder,Abuse, Alcohol,Abuse, Ethanol,Addiction, Alcohol,Alcohol Use Disorders,Chronic Alcoholic Intoxication,Dependence, Alcohol,Intoxication, Chronic Alcoholic,Use Disorders, Alcohol
D001283 Atrioventricular Node A small nodular mass of specialized muscle fibers located in the interatrial septum near the opening of the coronary sinus. It gives rise to the atrioventricular bundle of the conduction system of the heart. AV Node,A-V Node,Atrio-Ventricular Node,A V Node,A-V Nodes,AV Nodes,Atrio Ventricular Node,Atrio-Ventricular Nodes,Atrioventricular Nodes,Node, A-V,Node, AV,Node, Atrio-Ventricular,Node, Atrioventricular,Nodes, A-V,Nodes, AV,Nodes, Atrio-Ventricular,Nodes, Atrioventricular

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