{"title":"A case of fatal chlorfenapyr poisoning: evidence from histopathology and autopsy.","authors":"Hinsan Chui, Qian Wei, Ying Wang, Jiahui Chen, Feijun Huang, Fenghua Zhang, Daoyin Gong","doi":"10.1007/s12024-025-01010-x","DOIUrl":null,"url":null,"abstract":"<p><p>Chlorfenapyr poisoning is rare in clinical practice, with limited documented cases. This study aims to elucidate the clinical progression and pathological features of fatal chlorfenapyr poisoning through a forensic autopsy case. We present a case involving a 15-year-old male who died following oral ingestion of chlorfenapyr. Autopsy and histopathological examinations were performed, supplemented by toxicological analysis. Findings included decerebrate rigidity, cerebral edema, myocardial contraction band necrosis, pulmonary hemorrhage, and rhabdomyolysis. Histopathology confirmed neuronal damage, gliosis, and myoglobin-positive renal tubules. Toxicological analysis detected both chlorfenapyr and tralopyril in premortem and postmortem blood samples. Tralopyril levels measured 2610 ng/mL premortem and 1980 ng/mL postmortem, while chlorfenapyr levels were 320 ng/mL and 280 ng/mL, respectively. The patient exhibited delayed symptom onset, rapid deterioration, and resistance to supportive treatment. This case underscores chlorfenapyr's systemic toxicity, particularly its impact on high-energy-demand organs. The absence of a specific antidote highlights the need for early intervention and hemodialysis. This report-the first forensic autopsy of adolescent chlorfenapyr poisoning-enhances understanding of its pathophysiology and aids clinicians in recognizing nonspecific early symptoms.</p>","PeriodicalId":12449,"journal":{"name":"Forensic Science, Medicine and Pathology","volume":" ","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Forensic Science, Medicine and Pathology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s12024-025-01010-x","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MEDICINE, LEGAL","Score":null,"Total":0}
引用次数: 0
Abstract
Chlorfenapyr poisoning is rare in clinical practice, with limited documented cases. This study aims to elucidate the clinical progression and pathological features of fatal chlorfenapyr poisoning through a forensic autopsy case. We present a case involving a 15-year-old male who died following oral ingestion of chlorfenapyr. Autopsy and histopathological examinations were performed, supplemented by toxicological analysis. Findings included decerebrate rigidity, cerebral edema, myocardial contraction band necrosis, pulmonary hemorrhage, and rhabdomyolysis. Histopathology confirmed neuronal damage, gliosis, and myoglobin-positive renal tubules. Toxicological analysis detected both chlorfenapyr and tralopyril in premortem and postmortem blood samples. Tralopyril levels measured 2610 ng/mL premortem and 1980 ng/mL postmortem, while chlorfenapyr levels were 320 ng/mL and 280 ng/mL, respectively. The patient exhibited delayed symptom onset, rapid deterioration, and resistance to supportive treatment. This case underscores chlorfenapyr's systemic toxicity, particularly its impact on high-energy-demand organs. The absence of a specific antidote highlights the need for early intervention and hemodialysis. This report-the first forensic autopsy of adolescent chlorfenapyr poisoning-enhances understanding of its pathophysiology and aids clinicians in recognizing nonspecific early symptoms.
期刊介绍:
Forensic Science, Medicine and Pathology encompasses all aspects of modern day forensics, equally applying to children or adults, either living or the deceased. This includes forensic science, medicine, nursing, and pathology, as well as toxicology, human identification, mass disasters/mass war graves, profiling, imaging, policing, wound assessment, sexual assault, anthropology, archeology, forensic search, entomology, botany, biology, veterinary pathology, and DNA. Forensic Science, Medicine, and Pathology presents a balance of forensic research and reviews from around the world to reflect modern advances through peer-reviewed papers, short communications, meeting proceedings and case reports.