Fatal intoxication by dextromethorphan: a report on two cases

A report is given of two young people who died after intake of dextromethorphan, one by suicide and the other for uncertain reasons. To our knowledge this is the first reported fatal intoxications with this drug.     

Fatal tolperisone poisoning: autopsy and toxicology findings in three suicide cases

Tolperisone (Mydocalm) is a centrally acting muscle relaxant with few sedative side effects that is used for the treatment of chronic pain conditions. We describe three cases of suicidal tolperisone poisoning in three healthy young subjects in the years 2006, 2008 and 2009. In all cases, macroscopic and microscopic autopsy findings did not reveal the cause of death. Systematic toxicological analysis (STA) including immunological tests, screening for volatile substances and blood, urine and gastric content screening by GC-MS and HPLC-DAD demonstrated the presence of tolperisone in all cases. In addition to tolperisone, only the analgesics paracetamol (acetaminophen), ibuprofen and naproxen could be detected. The blood ethanol concentrations were all lower than 0.10 g/kg. Tolperisone was extracted by liquid-liquid extraction using n-chlorobutane as the extraction solvent. The quantification was performed by GC-NPD analysis of blood, urine and gastric content. Tolperisone concentrations of 7.0 mg/l, 14 mg/l and 19 mg/l were found in the blood of the deceased. In the absence of other autopsy findings, the deaths in these three cases were finally explained as a result of lethal tolperisone ingestion. To the best of our knowledge, these three cases are the first reported cases of suicidal tolperisone poisonings.     

Fatal aortic injury during laparoscopy: report of two cases

The authors report the cases of two young women who died of massive hemorrhage resulting from trocar aortic injuries during abdominal laparoscopy. In the first case, wherein the patient underwent laparoscopy for cecopexy, the forensic autopsy showed a through-and-through perforation of the abdominal aorta and of the ileum. The other woman, who had morbid obesity, underwent a laparoscopy for gastroplasty. In this second case, the main postmortem findings were stab wounds of the thoracic aorta and of the diaphragm.     

Fatal head injuries from firearms. An autopsy study of 270 cases

Autopsy findings in 270 fatal head injuries from firearms are reported, including 243 suicides and 27 homicides. The most frequent weapon used for both groups were shot guns which are easily available in Norway. For suicides the most favored sites were right tempoparietal, frontal, and mouth. Twenty-six percent of the victims from homicides had multiple wounds in their head. Suicide by firearms showed marked male predominance, whereas the sex ratio for homicide was rather equal between the two sexes.     

Isolated peliosis of the spleen: report of 2 autopsy cases

Isolated peliosis of the spleen, characterized by the gross appearance of multiple cystlike, blood-filled cavities on cut surfaces of the organ, is a very rare pathologic entity that has been reported in 33 cases to date. We present 2 additional cases of isolated peliosis of the spleen observed at autopsy and confirmed by histology. In both cases investigated, cirrhosis of the liver was present. We hypothesize that local microcirculatory disturbances manifesting under altered local intravascular pressure conditions in the spleen may, at least to a certain degree, be responsible for the peliosis-associated vascular lesions. For the forensic pathologist, isolated peliosis of the spleen represents more than just another morphologic curiosity. The significance of peliosis lienalis lies in the potential of (1) overlooking the correct diagnosis as the cause of a spontaneous splenic rupture with intraabdominal hemorrhage, thus leading to the false conclusion of a violent death; and (2) misinterpreting the macromorphological appearance of this rare disease, also in the absence of splenic rupture, as a result of blunt force trauma.     

35例胰腺出血案例死亡原因分析

３５例胰腺出血案例死亡原因分析刘敏，吴家Ｃａｕｓｅｓｏｆｄｅａｔｈｏｆｐａｎｃｒｅａｓｈｅｍｏｒｒｈａｇｅ：３５ａｕｔｏｐｓｙｃａｓｅｓｒｅｐｏｒｔ￥ＬｉｕＭｉｎ；ＷｕＪｉａｗｅｎ（ＤｅｐａｒｍｅｎｔｏｆＦｏｒｅｎｓｉｃＰａｔｈｏｌｏｇｙ，ＷｅｓｔＣ...     

Fatal myeloencephalopathy due to accidental intrathecal vincristin administration: a report of two cases

We report on two fatal cases of accidental intrathecal vincristine instillation in a 5-year old girl with recurrent acute lymphoblastic leucemia and a 57-year old man with lymphoblastic lymphoma. The girl died seven days, the man four weeks after intrathecal injection of vincristine. Clinically, the onset was characterized by the signs of opistothonus, sensory and motor dysfunction and ascending paralysis. Histological and immunohistochemical investigations (HE-LFB, CD-68, Neurofilament) revealed degeneration of myelin and axons as well as pseudocystic transformation in areas exposed to vincristine, accompanied by secondary changes with numerous prominent macrophages. The clinical course and histopathological results of the two cases are presented. A review of all reported cases in the literature is given. A better controlled regimen for administering vincristine and intrathecal chemotherapy is recommended.     

Fatal brodifacoum rodenticide poisoning: autopsy and toxicologic findings.

This report details the pathologic and toxicologic findings in the case of a 15-year-old girl who deliberately and fatally ingested brodifacoum, a commonly used rodenticide. The mechanism of death, massive pulmonary hemorrhage, has not been previously reported. Brodifacoum was quantitated in liver, spleen, lung, brain, bile, vitreous humor, heart blood, and femoral blood using HPLC with fluorescence detection. The highest brodifacoum concentrations were detected in bile (4276 ng/mL) and femoral blood (3919 ng/mL). No brodifacoum was detected in brain or vitreous humor. A brodifacoum concentration of 50 ng/g was observed in frozen liver while formalin fixed liver exhibited a concentration of 820 ng/g. A very high blood:liver brodifacoum concentration ratio suggested acute poisoning but the historical and pathologic findings suggested a longer period of anticoagulation. Though most cases of brodifacoum poisoning in humans are non-fatal, this compound can be deadly because of its very long half-life. Forensic pathologists and toxicologists should suspect superwarfarin rodenticides when confronted with cases of unexplained bleeding. Anticoagulant poisoning can mimic fatal leukemia or infectious diseases such as bacterial sepsis, rickettsioses, plague, and leptospirosis. A thorough death scene investigation may provide clues that a person has ingested these substances.     

Anticoagulant-related iliopsoas muscle bleeding leading to fatal exsanguination: report of two autopsy cases

Two cases of massive iliopsoas muscle bleeding leading to fatal exsanguination are presented. Both patients (two women, 61 and 74 years old, respectively) received oral anticoagulation with phenprocoumon. The intramuscular bleeding occurred spontaneously in women of relatively good physical condition. Intriguingly, phenprocoumon concentrations were within the therapeutic range (1.55 microg/ml and 1.26 microg/ml, respectively) as detected by toxicologic analysis. These cases demonstrate that severe bleeding in the iliopsoas muscle has to be considered in all patients receiving anticoagulant medication, even in those who have coagulation parameters within the therapeutic range. Especially in older patients with a high degree of comorbidity or in patients receiving analgesic drugs, the potential of fatal outcome of iliopsoas muscle bleeding seems to be of clinicopathologic relevance.     

Fatal intoxications in a Swedish forensic autopsy material during 1992-2002

Compilations of substances detected in fatal intoxications are important in order to observe changes in intoxication patterns, to monitor effects of preventive work and to discover new trends in drug usage. The aim of the present study was to describe the current pattern of substances detected in fatal intoxications in Sweden. Fatal intoxications investigated at the Department of Forensic Chemistry, Link?ping, Sweden, during 1992-2002, were analysed. All suicides, uncertain cases and accidents where the cause of death were fatal intoxications (ICD-9: E950, E980 and E859) were included and substances detected in more than 50 fatal intoxications (in femoral blood) were listed. For each substance, a cut off value was set, above which concentrations were considered toxic. Fatal intoxications were detected by forensic-chemical analyses in 12% (6998/60,314) of the forensic autopsies during the study period. Among the suicides, an average of 3.8 substances were detected per case, the corresponding figure for uncertain cases and accidents were 3.5 and 4.1 substances, respectively. Ethanol was by far the most frequently detected substance, detected in 43% (3039) of the fatal intoxications, of which 32% (960) had toxic concentrations, followed by propoxyphene, detected in 27% (1863) of the fatal intoxications of which 74% (1370) had toxic concentrations. The number of cases where ethanol and propoxyphene were detected decreased during the study period. Moreover, other CNS-active drugs such as antidepressants, analgesics and anxiolytics were also frequently detected. The drugs with high proportions of cases with toxic concentrations detected were propoxyphene, amitriptyline, zolpidem, carisoprodol, alprazolam, thioridazine, methadone and ketobemidone. Selective serotonin reuptake inhibitors (SSRI) and tricyclic antidepressants (TCA) were detected in 12% (833) and 10% (665), respectively. A significantly (P <0.001) higher proportion of cases where TCA were detected had toxic concentrations when compared with cases where SSRI were detected (64% versus 31%).     

医疗纠纷中135例猝死分析

目的为探讨引起医疗纠纷案例中猝死发生的特点，特别是其年龄、性别、科室、疾病的分布和发生纠纷的原因，为有关单位调处医疗纠纷和制定有关法规提供科学依据。方法自本教研室1955～1996年42a间受理的法医病理学尸检资料中挑选各种医疗纠纷案例；制定统一表格，将其中猝死者逐一登记，并进行统计分析。结果42a中涉及医疗纠纷的淬死135例。其中男87例、女48例。年龄自新生儿～67岁。以新生儿和婴儿居多（67例），男明显多于女；其次为25～34岁的青壮年组（21例），女多于男。近12a发生的猝死（94例）是过去30a（41例）的2．3倍。猝死疾病以呼吸系统最常见（46％），次为心血管系统疾病（25％）；但54例成人猝死者心血管系统疾病占首位（26例），次为泌尿生殖系统疾病（12例）。发生的科室多见于产科和儿科（74例）。结论认为近10年来医疗纠纷中猝死案例明显增多；医疗纠纷中非医疗事故远多于医疗事故；法医病理尸检对正确、合理地调处医疗纠纷，并对探讨猝死的发生机制，反馈、丰富和发展相关临床学科的内容，以及提高诊治水平均具有重要意义。     

A pathological study of sudden coronary death in China: report of 89 autopsy cases.

This paper reports the results of a forensic pathological study of 89 autopsy cases of Sudden Coronary Death (SCD). Of 89 cases, 63 (52 male, 11 female) were narrowed by 76-100% in cross-sectional area (XSA) of the coronary artery (CA) and 26 (22 male, 4 female), by 51-75%. Atherosclerotic plaques in the CA were serious and extensive, especially in the left anterior descending and often involved several branches of CA at the same time. Recent thrombosis was found in 18 cases, haemorrhage in plaques in 17 cases. Only 2 cases had visible acute myocardial infarction. Inflammatory cell infiltration was found in coronary plaques in 36 cases. Myocardial fibrosis or small scar formation was detected in 51 cases. It is suggested that although the incidence of coronary heart disease (CHD) is low in China, SCD is the commonest mode of Sudden Unexpected Death. The majority of SCD (52%) were middle aged males (30-49 years old). Most of the cases died suddenly during sleep without any clear precipitating factors. The characteristics of occurrence and pathological changes in the CA and myocardium and the pathological diagnosis of SCD are also analysed and discussed.     

Virtual autopsy and forensic identification-practical application: a report of one case

The body of an unidentified elderly woman was found trapped in a floodgate. Prior to autopsy, full-body multislice computed tomography (MSCT) was performed for study of bone lesions and cause of death. Age was estimated by analysis of the sternal end of the fourth rib and of the pubic symphyseal medial articular surfaces. The results were then compared with the autopsy findings. MSCT was superior to autopsy in diagnosis of traumatic bone lesions and also revealed dental anomalies and signs of drowning. Age estimation gave a similar result for both methods. This case report illustrates the potential value of MSCT for medico-legal investigations of death: diagnosis of injuries, possibility of determining the cause of death, and anthropological study in order to estimate age or to visualize features likely to enable identification of a corpse.     

219例损伤与疾病关系的尸检案例分析

目的探讨损伤与疾病关系案例的特点。方法对本教研室近20年的219例涉及损伤与疾病关系的尸检案例进行回顾性研究。结果①219例中,20~59岁青壮年占71.7%;伤后<24h死亡占48.9%。②损伤以拳、足等钝器伤为主,以擦伤和挫伤多见,主要位于头、胸部。③疾病以心血管疾病最多,CNS疾病次之。④损伤与疾病相关的案例占71.2%,最常见的是“疾病为主、损伤为辅”。结论损伤与疾病关系案例的死者多为男性青壮年,冠心病和病理性脑出血是两个主要的疾病;将损伤与疾病关系分为“单纯损伤致死、单纯疾病致死、损伤为主疾病为辅和疾病为主损伤为辅”四类简单而实用。     

Fatal paradoxical air embolism diagnosed by postmortem imaging and autopsy

The recognition and visualization of an arterial gas embolism are difficult. We report a case of sudden death caused by paradoxical air embolism of coronary and cerebral arteries, diagnosed by the pre autopsy computed tomography (CT) scanning. A 54-year-old woman suddenly died after the self-removal of the jugular vein catheter. Postmortem imaging examination using CT scanning showed multiple gas embolisms in the cerebral arteries, pulmonary artery, right atrium and ventricle, left ventricle, aorta, and coronary arteries. These findings suggested that the occurrence of acute ischemia of the brain and heart caused by massive air inflow to the artery. Conventional autopsy revealed a patent foramen ovale of the heart. These results indicated that the patient died of paradoxical air embolization of the coronary and cerebral arteries through a patent foramen ovale because of right-to-left shunting. The use of postmortem imaging as an aid for conventional autopsy has proved to be of advantage in the case of gas embolism.     

Argemone mexicana poisoning: autopsy findings of two cases

Epidemic dropsy, a disease due to Argemone mexicana poisoning, is characterized by pathological accumulation of diluted lymph in body tissues and cavities. Recently, the largest epidemic of the disease in India affected Delhi and its neighboring states during the months of August-September 1998. Over 3000 persons fell ill, and more than 65 died in the state of Delhi alone. Two cases belonging to the same family died, out of the large number of cases admitted in this tertiary care teaching hospital situated in eastern part of Delhi. Autopsy findings of these two cases are presented and discussed here along with the review of toxicity due to this poisoning.