Original ArticlesThe Diagnostic Value of the Changes in the Renal Glomerulus in the Postmortem Diagnosis of Freshwater DrowningsDemirci, Tuba MD∗; Sener, Mustafa Talip MD, PhD†; Sahpaz, Ahmet MD‡; Sener, Ebru MD§; Kok, Ahmet Nezih MD†Author Information From the ∗Department of Histology and Embryology †Department of Forensic Medicine, Faculty of Medicine, Ataturk University ‡Department of Pathology, Erzurum Branch of Council of Forensic Medicine §Department of Pathology, Faculty of Medicine, Ataturk University, Erzurum, Turkey. Manuscript received December 18, 2019; accepted February 28, 2020. Compliance with ethical standards: The ethical permission was granted by the education and scientific research commission of the Council of Forensic Medicine (No:2019/370, 20/05/2019). The authors report no conflict of interest. Reprints: Mustafa Talip Sener, Ataturk University Faculty of Medicine, Department of Forensic Medicine, 25240, Erzurum, Turkey. E-mail: email@example.com. The American Journal of Forensic Medicine and Pathology: June 2020 - Volume 41 - Issue 2 - p 104-109 doi: 10.1097/PAF.0000000000000546 Buy Metrics Abstract Drowning is one of the major causes of unintentional injury death worldwide. As there are no pathomorphological findings specific to the diagnosis of drowning, definitive postmortem diagnosis of drowning continues to be a significant problem in forensic medicine. This study aims to present an additional diagnostic sign in cases of freshwater drowning by investigating the histopathological changes of renal tissue in the postmortem diagnosis of freshwater drowning. For this purpose, 103 cases were investigated in which the causes of death were freshwater drowning (n = 45), traffic accidents (n = 33) and acute myocardial infarction (n = 25). Renal corpuscular structures of selected cases were examined stereologically and histopathologically. Renal corpuscle diameter, renal corpuscle surface area, glomerular tuft surface area, and Bowman space were calculated by stereological method. When compared with the glomeruli of the control group, renal corpuscle diameter, renal corpuscle surface area, glomerular tuft surface area, and Bowman space values of kidney tissues of all freshwater drowning cases were found to be decreased (P < 0.001). These changes may be considered as an essential histopathological finding in postmortem diagnosis of freshwater drowning cases. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.