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Introduction: The coronavirus disease of 2019 (COVID-19) pandemic has resulted in a great deal of morbidity and mortality worldwide. Since most deaths related to COVID-19 are currently considered natural, and they tend to occur following a clinically recognized illness, many medical examiner/coroner offices within the United States do not take jurisdiction over the majority of COVID-19 deaths. Methods: In this review, we present the experience of a medium-sized medical examiner's office affiliated with an academic medical school institution, over the first 15 months of the COVID-19 pandemic. Results: Compared to a 15-month period that immediately preceded the pandemic, our office experienced a significant increase in the total number of reported deaths, scene investigations, full autopsies, natural deaths, accidents, homicides, and drug-related deaths, but a decrease in the number of suicides. Overall, our office performed 5 autopsies during the study period where COVID-19 was considered the primary cause of death, 4 cases where COVID-19 was considered a contributory cause of death, and 28 cases where COVID-19 testing was positive, but COVID-19 was not contributory to death. Discussion: The COVID-19 pandemic was accompanied by a sizeable increase in work volume within our academic medical examiner's office. Although this increased workload was not related to a large number of COVID-19-related deaths investigated by the office, there were numerous areas of increased workload that were likely secondarily related to the conditions associated with the pandemic.
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Background: The NKX2-5 gene encodes a transcription factor that plays a role in atrioventricular nodal and myocardial development. Pathogenic variants of NKX2-5 are associated with congenital heart disease and sudden cardiac death. The missense variant in this case is one of the more common ones in Northern Europe and has high penetrance in familial cases. To our knowledge, this is the youngest person who died due to this variant. Case summary: This was a healthy, asymptomatic 14-year-old male with well-managed mild congenital dilated cardiomyopathy who died unexpectedly in his home. Postmortem examination revealed the NKX2-5 pathogenic missense variant, p.Phe145Leu, as the only explicable cause of death. Discussion: We propose that immediate family members of those who die suddenly due to NKX2-5 disease undergo genetic counseling and longitudinal screening to include this gene, as pathogenic variants in the NKX2-5 gene may manifest in a time-dependent manner.
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Spontaneous hemoperitoneum is rare and is often labeled as idiopathic because the source of bleeding is never found. We report the case of a 35-year-old male who died of a splenic vein rupture. The decedent was a chronic alcoholic with a reported history of cirrhosis and medication noncompliance. Internal examination revealed pale visceral organs, marked hemoperitoneum, a fibrotic/nodular liver, esophageal varices, and a ruptured splenic vein. Pertinent microscopic findings include liver parenchyma with bridging fibrous septa, nodules of regenerating hepatocytes, and the presence of Mallory-Denk bodies. The immediate cause of death was determined to be splenic vein rupture with the underlying cause of death being chronic alcoholism. This case is reported to emphasize the importance of correlating past medical history with thorough vascular dissection in cases of spontaneous hemoperitoneum. In a patient with fatal hemoperitoneum and risk factors for splenic vein pathology (ie, cirrhosis, portal vein hypertension), a high suspicion should be kept for splenic vein rupture.
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Diester diterpenoid alkaloids (DDAs) are the main active ingredients of herbaceous perennial plants Aconitum. DDAs possess cardiotoxic and neurotoxic properties. Although most deaths caused by DDA poisoning are accidental, a few instances of suicide and homicide have been reported. Presented is a case of an acute aconitine (AC) poisoning following the ingestion of approximately 50 mL of homemade medicinal liquor. We described the clinical manifestations after poisoning and detailed postmortem changes, and detected the concentrations of AC and hypaconitine (HA) by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The decedent experienced a burning sensation in the gastrointestinal tract after poisoning, followed by flushing and paralysis of the face and limbs, and severe cardiac arrhythmia. An autopsy revealed cyanosis of the lips and nail beds; conjunctival hemorrhage in both eyes; pulmonary edema; tissue hemorrhage and congestion in multiple organs; and inflammatory cell infiltration in the stomach, duodenum, pancreas, and cardiac muscle. The concentrations of AC and HA were as follows: cardiac blood, 38.4 ng/mL and 7.1 ng/mL; pericardial fluid, 7.3 ng/mL and 41 ng/mL; urine, 28.1 ng/mL and 574 ng/mL; bile, 38.5 ng/mL and 108 ng/mL; gastric contents, 0.06 mg and 0.56 mg; liver tissue, 10.7 ng/g and 109.6 ng/g; and medicinal liquor, 0.568 mg/mL and 0.664 mg/mL, respectively. The clinical manifestations, anatomy findings, and quantitative data on the concentrations of AC and HA in body fluids and tissues will aid forensic investigations of deaths caused by acute AC poisoning.
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INTRODUCTION: Facial gunshot wounds have devastating functional and aesthetic consequences for the patient. If associated with penetrating craniocerebral injuries, the prognosis is rather compromised even with appropriate medical and surgical treatment. Chop-off injuries with penetrating wounds constitute a challenging situation for the facial reconstructive surgeon in facial trauma. OBSERVATION: This case involved a 49-year-old man who sustained an accidental facial shot from a pellet gun. Radiological and clinical investigations revealed complex ballistic trauma to the maxillofacial region, with projectiles reaching the base of the skull. One of the projectiles migrated via the carotid canal towards a cerebral artery, leading to obstruction of the artery with cerebral infarction. An autopsy was performed which evaluated that the shooting distance was compatible with a long distance, causing the dispersion of lead grains with the absence of a wad inside the trauma site. CONCLUSION: In some cases of facial gunshot wounds, despite a complex and extensive lesion assessment, death may occur due to a neurological complication rather than sustaining hemodynamic shock, depending on the trajectory of the projectiles.
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Autopsie , Sténose carotidienne , Lésions traumatiques de la face , Plaies par arme à feu , Humains , Mâle , Plaies par arme à feu/complications , Plaies par arme à feu/diagnostic , Adulte d'âge moyen , Issue fatale , Sténose carotidienne/étiologie , Sténose carotidienne/diagnostic , Lésions traumatiques de la face/complications , Encéphalopathie ischémique/étiologie , Encéphalopathie ischémique/diagnostic , Encéphalopathie ischémique/anatomopathologieRÉSUMÉ
To study the degradation of lncRNAs in EPMI in rat brain tissue, this study provides a new direction for the estimation of EPMI. LncRNA high-throughput sequencing was performed on the brain tissues of hemorrhagic shock model rats at 0 h and 24 h, and the target lncRNAs were screened. Samples at 0, 1, 3, 6, 12, 18 and 24 h after death were collected, and miRNA-9 and miRNA-125b were used as reference genes. The relative expression levels of lncRNAs at each PMI were detected by RT-qPCR, and a functional model involving lncRNAs and EPMI was established. Samples were collected at 6, 9, 15, and 21 h after death for functional model verification. The expression of several lncRNAs decreased with the prolongation of EPMI, and the mathematical model established by several lncRNA indices exhibited good fit. The verification results of the multi-index joint function model are significantly better than those of the single-index function model, and the established model is more practical. There is a linear relationship between lncRNAs and EPMI, and the multi-index function model is significantly better than the single-index function model, which is important for EPMI inference in forensic pathology practice.
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Encéphale , Modifications postmortem , ARN long non codant , Animaux , ARN long non codant/génétique , ARN long non codant/métabolisme , Rats , Encéphale/métabolisme , Encéphale/anatomopathologie , Mâle , Rat Sprague-Dawley , Facteurs temps , Stabilité de l'ARNRÉSUMÉ
BACKGROUND: Intrauterine fetal death and perinatal death represent one of the most relevant medical scientific problems since, in many cases, even after extensive investigation, the causes remain unknown. The considerable increase in medical legal litigation in the obstetrical field that has witnessed in recent years, especially in cases of stillborn births, has simultaneously involved the figure of the forensic pathologist in scientific research aimed at clarifying the pathophysiological processes underlying stillbirth. METHODS: our study aims to analyze cases of sudden intrauterine unexplained death syndrome (SIUD) to evaluate the role of oxidative stress in the complex pathogenetic process of stillbirth. In particular, the immunohistochemical expression of specific oxidative stress markers (NOX2, NT, iNOS, 8-HODG, IL-6) was evaluated in tissue samples of placentas of SIUDs belonging to the extensive case series (20 cases), collected from autopsy cases of the University of Ferrara and Politecnica delle Marche between 2017 and 2023. RESULTS: The study demonstrated the involvement of oxidative stress in intrauterine fetal deaths in the placenta of the cases examined. In SIUD, the most expressed oxidative stress markers were NOX2 and 8-HODG. CONCLUSIONS: The study contributes to investigating the role of oxidative stress in modulating different pathways in unexplained intrauterine fetal death (SIUD) tissues.
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Marqueurs biologiques , Mort foetale , Immunohistochimie , Stress oxydatif , Placenta , Humains , Femelle , Placenta/métabolisme , Placenta/anatomopathologie , Grossesse , Marqueurs biologiques/métabolisme , Adulte , NADPH Oxidase 2/métabolisme , Mortinatalité , Interleukine-6/métabolismeRÉSUMÉ
Methanol, or wood alcohol, is a clear liquid with a weak odor, slightly sweeter than ethanol, which is easily accessible. The last makes it a product of choice for intentional self-harm, severe intoxication, or even suicide. Accidental ingestion and homicidal usage are not exclusions. We present and discuss the case of a man in his 20s who was in continuous alcoholic intoxication until he finally abused with methanol and was admitted to a hospital, where he died six days later. When it comes to intoxication, there are often no apparent findings that could help in determining the cause and manner of death. The last is especially important in cases of delayed death when the toxicology results are negative.
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Novel benzodiazepine (NBz) detections in Victorian coronial cases started early in 2018 and have continued to increase in number and type up to December 2022. The eleven different NBz detections included etizolam (n=82), flualprazolam (n=43), clonazolam or 8-aminoclonazolam (n=30), bromazolam (n=15), clobromazolam (n=13), phenazepam (n=13), flubromazolam (n=12), flubromazepam (n=8), desalkylflurazepam (n=6), diclazepam (n=2), and estazolam (n=1). The pattern of detections varied over the 5-year period, with different compounds appearing over different time frames. The most recent NBz to appear were bromazolam, clobromazolam, flubromazepam and phenazepam; whereas etizolam had been seen regularly in case work since 2018. Of the total 133 deaths, 95 were considered drug related deaths by forensic pathologists with at least one additional CNS depressant also present capable of contributing to death. All deaths involved other (non-benzodiazepine) CNS active drugs, although many involved multiple NBz, with five or more different benzodiazepines detected in eight cases.
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Background and Objectives: This study presents a retrospective analysis of 26 autopsy cases from a single centre, primarily focusing on forensic cases, with a majority of male individuals. Materials and Methods: We systematically analysed autopsy reports and cardiac tissue slides using haematoxylin-eosin stain and immunohistochemistry for CD3, CD163, and IL-6. The histological assessment evaluated key variables such as inflammation severity, necrosis, and background changes using a standardised grading system. Quantitative analysis of immunohistochemical markers was performed, calculating the percentage of positively stained cells within the inflammatory infiltrate. Results: The average age was 51.6 years, slightly skewed towards older males. The fatalities varied widely, with sudden death and drug abuse being the most common conditions linked to myocarditis findings on histological examination. A strong correlation was found between the severity of inflammation (measured by size within a myocardium section) and the scoring system based on the number of inflammatory foci per section (p ≤ 0.001). Most cases showed mild to minimal fibrosis, with some exhibiting moderate to severe fibrosis, arteriosclerosis, and myocyte hypertrophy. The presence of protein CD3 in the inflammatory infiltrate revealed a moderate inverse correlation between the CD3 values and the severity of inflammation and necrosis, and a strong inverse correlation with neutrophil levels. CD3 levels were higher in sudden death cases and lower in cases with numerous inflammatory foci, highlighting the discreet nature of lymphocytic myocarditis. Macrophage presence, assessed using CD163, showed a moderate inverse correlation with neutrophil levels and significant differences between sudden death and non-sudden death cases. Macrophage-rich inflammation was observed in cases with pneumonia/bronchopneumonia-associated lesions. IL-6 expression showed a moderate direct correlation with inflammation severity (p = 0.028), severity of necrosis (p = 0.005), and the number of inflammatory foci per section (p = 0.047). A moderate inverse correlation was found between CD3 and IL-6 expression (p = 0.005). Conclusions: These findings highlight the need for a unique immunohistochemical approach in forensic cases of myocarditis, differing from guidelines for endomyocardial biopsies due to diverse inflammatory cells. The study suggests exploring inflammatory chemokines within myocarditis foci for their significance in clinical scenarios. Specifically, IL-6, a crucial pro-inflammatory interleukin, correlated significantly with the severity of inflammation and necrosis (p < 0.05). This study provides novel and valuable insights into the histopathological and immunological markers of myocarditis in autopsy cases.
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Autopsie , Immunohistochimie , Myocardite , Humains , Myocardite/anatomopathologie , Mâle , Études rétrospectives , Adulte d'âge moyen , Immunohistochimie/méthodes , Adulte , Femelle , Sujet âgé , Antigènes CD/analyse , Antigènes de différenciation des myélomonocytes/analyse , Antigènes CD3/analyse , Interleukine-6/analyse , Myocarde/anatomopathologie , Récepteurs de surface cellulaire/analyseRÉSUMÉ
INTRODUCTION: Sudden non-cardiac death (SNCD) is a clinical entity comprising deaths lacking previous clinically significant symptoms, and in which the mechanisms of death do not involve the heart. Infection is a major cause of SNCD, particularly in children, and viruses are frequently involved in the disease process. Nevertheless, SNCD of viral infectious causes remains poorly characterized. Thus, a systematic review of the literature describing the association between viral infection and the development of SNCD was performed. METHODS: PRISMA statement guidelines were followed in this systematic review. A literature search was conducted across MEDLINE, Scopus and Web of Science databases. Studies considered eligible were autopsy series or cohort studies of sudden death cases, in which evidence of viral disease as a cause of death was demonstrated, along with identification of causative agents. RESULTS: Twelve studies published between 1996 and 2020 were included in this review. Selected studies were categorized into three groups according to the study population: infants and young children (up to four years of age); presumed sudden infant death syndrome patients; and older individuals (five years of age and older). SNCD with viral implication represents a minority of sudden death cases in all age groups, with infants and young children having a higher prevalence across studies. Respiratory infection was the main cause of viral SNCD, with influenza virus and respiratory syncytial virus being the most commonly identified agents in older individuals, and infants and young children respectively. Disseminated infection, gastrointestinal infection, and meningitis were other identified causes of SNCD in children. CONCLUSIONS: No studies have directly assessed the frequency and causes of viral SNCD. Infants and young children show a considerable, but variable, prevalence of this clinical entity. Wider implementation of post-mortem virological molecular testing may help uncover previously unknown cases. More research into viral SNCD is needed, especially in the adult population.
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Mort subite , Maladies virales , Humains , Maladies virales/mortalité , Mort subite/étiologie , Nourrisson , Enfant , Cause de décèsRÉSUMÉ
Avalanche fatalities are quite rare in the Czech Republic. Due to the presence of avalanche fields in the two Czech mountains, forensic pathologists at some forensic medicine departments may encounter this specific mechanism of accidental death. The authors summarize medicolegal aspects of deaths in avalanches in the territory of the Czech Republic for the twenty-three-year period between 1993-2015. Ten avalanche fatalities were recorded during study period. The studied group consisted of nine male and one female victims. The average age of the deceased was 27.9 years. Skiers or ski-alpinists died in the avalanche in five cases (50%), climbers in two cases (20%), snowboarders in one case (10%), cross-country skiers in one case (10%) and in one case it was a fatality of child playing on a snowy hill (10%). The cause of death was suffocation in four cases (40%), blunt trauma in four cases (40%), and in the remaining two cases it was the survival of trapped persons several hours after being rescued from the avalanche in the hospital; both victims subsequently died as a result of prolonged shock (20%) due to a combination of prolonged suffocation and hypothermia. The time interval from the fall of the avalanche to the rescue of the trapped person was in the range of minutes to 3 hours. The presence of alcohol or drugs was not detected in any studied case.
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Avalanches , Humains , République tchèque/épidémiologie , Mâle , Avalanches/mortalité , Femelle , Adulte , Études rétrospectives , Jeune adulte , Ski/traumatismes , Adulte d'âge moyen , Adolescent , Asphyxie/mortalité , Asphyxie/étiologie , EnfantRÉSUMÉ
Although the postmortem interval estimation still represents one of the main goals of forensic medicine, there are still several limitations that weigh on the methods most used for its determination: for this reason, even today, precisely estimating the postmortem interval remains one of the most important challenges in the forensic pathology field. To try to overcome these limitations, in recent years, numerous studies have been conducted on the potential use of the mRNA degradation time for reaching a more precise post mortem interval (PMI) estimation. An evidence-based systematic review of the literature has been conducted to evaluate the state of the art of the knowledge focusing on the potential correlation between mRNA degradation and PMI estimation. The research has been performed using the electronic databases PubMed and Scopus. The analysis conducted made it possible to confirm the potential applicability of mRNA for reaching a more precise PMI estimation. The analysis of the results highlighted the usefulness of some mRNAs, such as ß-actin and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) mRNA, especially in short time frames, within a few hours or days of death. The matrices on which these analyses were conducted were also analyzed, resulting in less exposure to the external environment, including the heart, brain, and dental pulp. The major limitations were also reported, including the short time intervals analyzed in most of the articles, the lack of mathematical models, and the failure to report the error rate between the mRNA degradation time and PMI. Given the still small number of published articles, the lack of globally recognized standardized methods, and the numerous techniques used to evaluate the mRNA degradation times, numerous and larger studies are still necessary to reach more solid and shared evidence.
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Modifications postmortem , ARN messager , ARN messager/génétique , ARN messager/métabolisme , Humains , Animaux , Médecine légale/méthodes , Stabilité de l'ARN , AutopsieRÉSUMÉ
Background: Male circumcision (MC) is a practice involving the surgical excision of the foreskin to expose the glans and it is often performed for religious reasons. Ritual circumcision is frequently carried out by unqualified practitioners in inadequate settings, which can also lead to the death of the individual. Case Report: A 28-day-old infant was undergoing circumcision by a man that performed the circumcision using a razor blade. During the same day, the child experienced continuous bleeding from the wound and, finally, died after about 20 hours. At autopsy, a cutaneous sharp injury was revealed with ablation of the foreskin and part of the penile body. The lesion had irregular and jagged margins, with diffuse hemorrhagic infiltration. The glans and upper fascia of the penis appeared edematous and hyperemic and there were abundant hemorrhagic infiltrations in the frenulum area. The child's death was attributed to hemorrhagic shock in a child undergoing genital mutilation surgery. The finding of a significant hemorrhagic infiltration of the frenulum region indicated that the frenular artery had been severed. Conclusions: Around 35% of ritual male circumcisions are performed clandestinely in Italy, and typically by unqualified practitioners. In such events, the forensic investigation of the injuries inflicted on the victim allows for determining whether the procedure was performed appropriately or not, to verify the existence of a causal link between the procedure itself and the death of the individual.
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Comportement cérémoniel , Circoncision masculine , Choc hémorragique , Humains , Circoncision masculine/effets indésirables , Mâle , Choc hémorragique/étiologie , Issue fatale , Nouveau-néRÉSUMÉ
Background: "Complex suicide" refers to suicides in which more than one suicide method is applied. The victim can either plan different and simultaneous ways of death, to prevent any failures, or change the method because the first one fails or turns out to be too painful. Case report: A Middle-age-man was found dead inside a car, in a field, near the seaside. Clothes were intact, wet, and smeared with mud and gravel. His shirt had dried whitish biological material on the thoracic area, referable to oedema fluid, his trousers were down to his ankles exposing external genitalia. Inside the car, a kitchen-serrated blade knife and scissors were found, both smeared with dried blood material. Cadaveric inspection showed: multiple superficial stab/cut injuries; nasal cavities leaking aqueous-like fluid; triangular and linear stab lesions all over the body; hesitation marks on both latero-cervical regions and both wrists; no defensive injuries referrable to third parties; maceration over both palmar and plantar surfaces. Autopsy showed: hemorrhagic infiltration for thoracic muscles; expanded and heavily congested lungs. Conclusions: This is the first Italian case, and one of the few cases reported in major literature (third case worldwide), of unplanned complex suicide achieved through stabbing and drowning by a man with no psychiatric or substances abuse history. Therefore, analyzing any evidence to distinguish this kind of sudden/unnatural death from accidental or homicidal ones is mandatory. Such cases require a flawless approach to judicial inspection, autopsy, and toxicological exams. Moreover, a multidisciplinary perspective including psychiatric criminological investigation is needed.
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Noyade , Suicide réussi , Plaies par arme blanche , Humains , Mâle , Italie , Adulte d'âge moyenRÉSUMÉ
In the process of murder investigation, it is of great significance to find the discarded and buried human remains accurately. The main methods of searching for human remains include human visual search, aerial detection, geophysical technology, remote imaging technology and canine olfactory search technique. Canine olfactory search for human remains is a recognized time-effective and non-invasive search method, making dogs the most valuable search tool in forensic investigation. By systematically reviewing and summarizing relevant literature, and based on the theory of volatile organic compound produced by the decomposition of human remains, this paper explores the basic principle of the canine olfactory search technique for human remains. This paper also reviews the application of training canine search technique for human remains in forensic investigation by using human blood, tissue, cadaver putrefying fluid and odor substitutes as sniffing sources. The application prospect of canine olfactory search for human remains was prospected from the perspectives of detection of volatile organic compound during cadaver decay, development of odor substitutes and adsorption devices, and technology tactics used in canine training and use, to provide references for the relevant research of canine olfactory search for human remains in China.
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Odorisants , Odorat , Composés organiques volatils , Chiens , Animaux , Humains , Odorat/physiologie , Odorisants/analyse , Composés organiques volatils/analyse , Modifications postmortem , Restes de corps , Sciences légales/méthodes , Cadavre , Médecine légale/méthodesRÉSUMÉ
OBJECTIVES: To screen biomarkers for forensic identification of acute myocardial infarction (AMI) by non-targeted metabolomic studies on changes of urine metabolites in rats with AMI. METHODS: The rat models of the sham surgery group, AMI group and hyperlipidemia + acute myocardial infarction (HAMI) group were established. Ultra-high performance liquid chromatography-mass spectrometry (UPLC-MS) was used to analyze the changes of urine metabolic spectrometry in AMI rats. Principal component analysis, partial least squares-discriminant analysis, and orthogonal partial least squares-discriminant analysis were used to screen differential metabolites. The MetaboAnalyst database was used to analyze the metabolic pathway enrichment and access the predictive ability of differential metabolites. RESULTS: A total of 40 and 61 differential metabolites associated with AMI and HAMI were screened, respectively. Among them, 22 metabolites were common in both rat models. These small metabolites were mainly concentrated in the niacin and nicotinamide metabolic pathways. Within the 95% confidence interval, the area under the curve (AUC) values of receiver operator characteristic curve for N8-acetylspermidine, 3-methylhistamine, and thymine were greater than 0.95. CONCLUSIONS: N8-acetylspermidine, 3-methylhistamine, and thymine can be used as potential biomarkers for AMI diagnosis, and abnormal metabolism in niacin and nicotinamide may be the main causes of AMI. This study can provide reference for the mechanism and causes of AMI identification.
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Marqueurs biologiques , Modèles animaux de maladie humaine , Métabolomique , Infarctus du myocarde , Animaux , Infarctus du myocarde/métabolisme , Infarctus du myocarde/urine , Rats , Métabolomique/méthodes , Mâle , Marqueurs biologiques/urine , Marqueurs biologiques/métabolisme , Chromatographie en phase liquide à haute performance , Rat Sprague-Dawley , Analyse en composantes principales , Analyse discriminante , Spectrométrie de masse/méthodes , Acide nicotinique/métabolisme , Acide nicotinique/urine , Hyperlipidémies/métabolisme , Nicotinamide/urine , Nicotinamide/métabolisme , Nicotinamide/analogues et dérivés , Voies et réseaux métaboliques , Courbe ROC , Méthode des moindres carrés , Médecine légale/méthodes , MétabolomeRÉSUMÉ
Accurately identifying and differentiating the types of injuries in decomposed corpses is a major challenge in forensic identification. Forensic investigations involving decomposed cadavers pose challenges in determining the cause of death. Traditional methods often lack conclusive evidence. However, the implementation of advanced analytical techniques, such as comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC × GC-TOF/MS), shows promise in overcoming these limitations, but the potential in this area remains limited. Therefore, this study aims to bridge this gap by exploring the potential of GC × GC-TOF/MS in the analysis of volatile organic compounds (VOCs) changes within decaying ante- and post-mortem injuries.The research emphasizes the forensic significance of VOCs changes in decomposed cadavers. We used GC × GC-TOF/MS analysis to identify the specific volatile compounds in putrefied corpse tissue samples from mice. The GC × GC-TOF/MS analysis results showed that under winter conditions, PC1 explained 57.16% of the variance, and PC2 explained 25.23% of the variance; while under summer conditions, PC1 explained 71.89% of the variance, and PC2 explained 24.49% of the variance. This demonstrates the potential of GC × GC-TOF/MS in identifying specific VOCs present in tissue samples that can serve as potential biomarkers for distinguishing between antemortem and postmortem injury. GC × GC-TOF/MS analysis revealed distinct VOC patterns in both conditions. Comprehensive use of GC × GC-TOF/MS analysis enhances accuracy in identifying and characterizing ante- and post-mortem injuries in decomposed cadavers. This study can significantly contribute to the field of forensic medicine and improve the accuracy of forensic investigations.
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Cases of battery ingestion are well documented in the scientific literature, especially concerning button cell battery ingestion in children. In this instance, the authors present an atypical case of a young man who voluntarily ingested a cylindrical alkaline battery containing manganese. The patient died approximately a week later, despite not exhibiting any specific symptoms. The battery was found in the cecum during the autopsy, showing deterioration at its positive pole. The cecal mucosa exhibited two ulcerations without perforation. Histological analysis revealed intestinal ischemia in the cecum, with no microscopic lesions in other organs. Toxicology reports indicated high levels of manganese in both cardiac and peripheral blood. Considering all the results from the additional analyses, the experts concluded that the death was likely of multifactorial origin, associated with a toxic blood concentration of manganese. To the best of our knowledge, this is the first recorded death following the ingestion of a cylindrical battery, and the first instance of manganese intoxication resulting from the ingestion of an alkaline battery. The authors will present the case and provide a literature review to assess the extent to which the presence of manganese may have contributed to the fatality.
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Sudden cardiac death is a phenomenon that affects more than 200,000 individuals annually in the United States. Among sudden cardiac deaths, only a fractionally small portion is thought to be attributable to intracardiac neoplasms. Though rarely implicated as the primary cause of death, cardiac myxomas are the most common benign neoplasms of the heart and have been known to cause death due to multifactorial embolic events, fatal arrhythmias, and frank obstructive events. In this case, a healthy, asymptomatic young male was found unresponsive in his residence. Examination of the heart at autopsy revealed dilation of the right atrium and a large, hemorrhagic, irregular, and obstructing mass arising from the right atrium, consistent with cardiac myxoma. When unusual cardiac findings are discovered at autopsy, a systematic investigation of the heart, including retaining the organ for cardiac pathology consultation, is mandatory to correctly identify the cause of death.