Reconstrução facial forense: estudo antropométrico e antropomórfico da orelha / Forensic facial reconstruction: anthropometric and anthropomorphic study of the ear

O reconhecimento por meio da reconstrução facial forense é possível graças às pesquisas sobre as espessuras dos tecidos moles e características dos anexos faciais (olhos, boca, nariz e orelhas) e, a fidelidade dessas características são essenciais no processo do reconhecimento e posterior identificação. Na literatura científica, poucos trabalhos relacionam as orelhas à reconstrução facial forense. Este estudo tem como objetivo analisar as particularidades das orelhas, avaliando formato, tamanho, inclinação e posição, propor uma metodologia de classificação com vistas a uma maior reprodutibilidade que a forma atual existente e estabelecer relação com o biotipo facial. Diante da já referida dificuldade em se avaliar o formato da orelha foi elaborada uma abordagem mais objetiva que se mostrou eficaz quando da comparação entre o Índice Kappa (Cohen) realizado entre a forma atual e a forma proposta (de 0,63 para 0,83 intraexaminador e de 0,19 para 0,61 interexaminador). Foi também observada a predominância da orelha do tipo oval da população estudada. Foram avaliadas 99 fotografias de uma amostra de conveniência obtidas em um Pronto Socorro Odontológico particular da zona sul da cidade de São Paulo, composta por indivíduos de ambos os sexos com idade superior a 18 anos. Quanto às mensurações, o ICC intra e interexaminador obtiveram o mesmo resultado de 0,99. A análise comparativa entre os sexos revelou que o sexo masculino possui orelhas maiores quando comparado ao feminino. O estudo da inclinação da orelha em relação ao crânio mostrou um ângulo médio formado entre seu longo eixo e o Plano de Frankfurt de 73º para 76% dos homens e 69,76% das mulheres. Quanto à relação da orelha com outras estruturas, em 81,6% dos casos, o ponto mais superior da orelha coincide com a sobrancelha.

Aspectos por considerar en autopsias por intoxicación aguda con monóxido de carbono, el asesino silente. A propósito de dos casos / Aspects to consider in autopsies for acute carbon monoxide poisoning, the silent killer. About two cases

El monóxido de carbono (CO) es un gas que se produce durante la combustión incompleta de diferentes materiales orgánicos. Una vez que se inhala, se absorbe hacia la sangre, ejerciendo su efecto a nivel sistémico. Se une fuertemente a la hemoglobina, y forma la carboxihemoglobina lo que provoca una disminución del transporte de oxígeno a los tejidos y dependiendo de su concentración puede ser mortal. Los hallazgos comúnmente encontrados en la autopsia son color rojo cereza en la piel y órganos, así como edema pulmonar, entre otros. El diagnóstico de intoxicación por CO se basa en la medición post mortem de carboxihemoglobina en sangre, por lo que se deben tomar muestras para cuantificar estos niveles. Con respecto al manejo en estos casos, se presenta dos casos correspondientes a la autopsia médica legal en las que se estableció como causa de muerte la intoxicación por monóxido de carbono.

Carbon monoxide (CO) is a gas that is produced during the incomplete combustion of different organic materials. Once inhaled, it is absorbed into the blood, exerting its effect at the systemic level. It strongly binds to hemoglobin, and forms carboxyhemoglobin, which causes a decrease in oxygen transport to the tissues and, depending on its concentration, can be fatal. The findings commonly found in the autopsy are cherry red color in the skin and organs, as well as pulmonary edema, among others. The diagnosis of CO poisoning is based on the postmortem measurement of carboxyhemoglobin in the blood, so samples must be taken to quantify these levels. Regarding the handling of these cases, two cases corresponding to the legal medical autopsy are presented in which carbon monoxide poisoning was established as the cause of death.

Consideraciones médico-legales laborales de la fórmula de Balthazard / Occupational medical-legal considerations of the Balthazard formula

La determinación del porcentaje de pérdida en pacientes lesionados con múltiples secuelas por riesgos de trabajo resulta un verdadero reto para el perito, esto adquiere mayor relevancia cuando en el fuero judicial se pueden presentar discrepancias en los criterios para el uso o no de fórmulas matemáticas para el cálculo. La fórmula de suma combinada, creada por el Médico Forense Víctor Balthazard, no es más que un ordenamiento de una regla de tres que ordena los porcentajes otorgados a cada secuela de mayor a menor para evitar que el porcentaje final sobrepase el 100%, o bien que resulte en un porcentaje mayor que una secuela única puntuada en el baremo y que por gravedad en la intensidad de la misma resulte con un porcentaje menor al calculado por la secuela múltiple y que se ha utilizado en fueros laborales y de seguridad social alrededor del mundo. El Baremo contenido en el Código de Trabajo no establece explícitamente la forma en que se calcula el porcentaje de pérdida por secuelas múltiples, lo cual brinda libertad al perito para utilizar fórmulas, como lo es la fórmula de suma combinada, que permite calcular de forma congruente las pérdidas sucesivas sin sobrepasar a la persona más allá de su capacidad general total del 100% o de otorgar porcentajes mayores a secuelas de mayor gravedad que la suma de las pérdidas por el evento que se está valorando.

The determination of the percentage of loss in injured patients with multiple sequelae due to occupational hazards is a real challenge for the expert, this becomes even more relevant when in the judicial system there may be discrepancies in the criteria for the use or not of mathematical formulas for the calculation. The combined sum formula, created by the Forensic Physician Victor Balthazard, is nothing more than an arrangement of a rule of three that orders the percentages given to each sequel from highest to lowest to avoid that the final percentage exceeds 100%, or that it results in a higher percentage than a single sequel scored in the scale and that due to the severity in the intensity of the same results in a lower percentage than that calculated for the multiple sequel and that has been used in labor and social security courts around the world. The Schedule contained in the Labor Code does not explicitly establish the way in which the percentage of loss for multiple sequelae is calculated, which gives the expert the freedom to use formulas, such as the combined sum formula, which allows a congruent calculation of the successive losses without exceeding the person's total general capacity of 100% or to grant higher percentages to sequelae of greater severity than the sum of the losses for the event being valued.

Percepción de la utilidad de los registros dentales como método de identificación humana en profesiones de alto riesgo: el caso de las personas trabajadoras de la Cruz Roja Costarricense / Perception of the usefulness of dental records as a method of human identification in high-risk professions: the case of the Costa Rican Red Cross workers

Introducción: Aquellas personas que brindan atención en situaciones de emergencias están expuestas a un alto riesgo de sufrir lesiones o fallecer durante labores de rescate, sea en accidentes de tránsito, desastres naturales, atentados terroristas o crisis humanitarias generadas por conflictos armados. Esta investigación fue realizada en las personas trabajadoras de la Cruz Roja Costarricense (CRC) para establecer la percepción de la utilidad de los registros dentales como método de identificación y elaborar un formato único de información odontológica antemortem. Materiales y métodos: Un cuestionario piloto fue diseñado y aplicado a 10 personas para ser calibrado y validado. Posteriormente se generó un cuestionario electrónico final en la plataforma Google Forms que fue enviado vía correo electrónico institucional a las personas trabajadoras constituida por 175 individuos, de los cuales 92 respondieron en el período del 20 de noviembre de 2022 al 20 de enero de 2023. Los resultados fueron analizados mediante las distribuciones de frecuencia, cruce de variables, comparación de medias con base en el análisis de variancia. El nivel mínimo de confianza para las comparaciones fue del 95%. Resultados: El cuestionario fue realizado por 92 personas, 75% hombres y 25% mujeres. El rango de edad entre los 36 y 40 años fue el más frecuente (23.9%). El 60,9% labora en la provincia de San José, 58% indica que visitaron al odontólogo hace un año o menos y el 38,6% refiere que nunca les han tomado una radiografía panorámica, un 81,8% dice tener tratamientos dentales como coronas, puentes o implantes; y el 75% considera de gran utilidad los registros dentales como método de identificación, y lo ubican en segundo lugar de conocimiento (89,8%) al compararlo con ADN (97,7%) y dactiloscopia (86,4%). Conclusiones: Las personas trabajadoras de la Cruz Roja Costarricense consideran que los registros odontológicos son útiles en la identificación de seres humanos y cuentan con información antemortem útil para dicho efecto.

Introduction: Those who provide care in emergency situations are exposed to a high risk of injury or death during rescue work, whether in traffic accidents, natural disasters, terrorist attacks, or humanitarian crises generated by armed conflicts. This research was carried out among Costa Rican Red Cross (CRC) workers to establish the perception of the usefulness of dental records as a method of identification and to develop a single format for antemortem dental information. Materials and methods: A pilot questionnaire was designed and applied to 10 persons to be calibrated and validated. Subsequently, a final electronic questionnaire was generated in the Google Forms platform and sent via institutional e-mail to 175 workers, of whom 92 responded during the period from November 20, 2022, to January 20, 2023. The results were analyzed by means of frequency distributions, crossing of variables, and comparison of means based on the analysis of variance. The minimum confidence level for comparisons was 95%. Results: The questionnaire was completed by 92 people, 75% men and 25% women. The age range between 36 and 40 years was the most frequent (23.9%). A total of 60.9% worked in the province of San José, 58% indicated that they had visited the dentist a year ago or less and 38.6% said that they had never had a panoramic X-ray taken, 81.8% said they had dental treatments such as crowns, bridges or implants; and 75% considered dental records to be very useful as a method of identification, and placed it in second place in terms of knowledge (89.8%) when compared with DNA (97.7%) and dactyloscopy (86.4%). Conclusions: Costa Rican Red Cross workers consider dental records to be useful in the identification of human beings and have useful antemortem information for this purpose.

Transtornos relacionados ao sono e comportamentos sexuais anômalos / Sleep Disorders and abnormal sexual behaviors

Esse artigo se baseia nas publicações de Schenck, especialista no assunto. Parassonias são comportamentos sexuais anômalos relacionados ao sono, caracterizados por movimentos complexos, emoções, percepções, sonhos e atividade do sistema nervoso autônomo. Podem provocar lesões, interrupção do sono, efeitos adversos à saúde e psicossociais. O diagnóstico é clínico: história médica e antecedentes (relatos de parcerias ou familiares e vídeos domésticos). Polissonografia é reservada para casos atípicos. O tratamento inclui medidas protetivas, esclarecimento ao familiar/cônjuge, controle dos fatores precipitantes, medicamento (clonazepam) e psicoterapia. A sexônia é uma parassonia (subtipo não REM), melhor estudada. Masturbação e tentativas inadequadas de obter relações sexuais (seguidas de amnésia ou lembrança vaga) são frequentes. A frequência em clínicas do sono é de 7,6% (homens 11,0%; mulheres 4,0%). Esses comportamentos surgem no curso de longa história de parassonia, desencadeando despertares confusionais. Terapia nasal com pressão positiva contínua nas vias aéreas pode controlar. Em homens, ereção peniana, associada à sexônia, é referida pela parceria. Providência importante é inquirir sobre sexônia, quando houver suspeita, uma vez que o paciente e/ou sua parceria não costumam falar, a menos que sejam solicitados ou por questões legais. Revisão de 18 casos médico-legais sobre violência relacionada ao sono e comportamento sexual durante o sono encontrou 9 casos em que sexônia foi alegada pela defesa. Foram apresentadas avaliações dos réus, as quais diferiram de caso para caso, alertando para a necessidade de consenso internacional. Abuso de álcool desqualifica a "defesa baseada em parassonia [sexônia]" em casos médico-legais.

Análisis médico legal de la fractura de órbita por "blow out" o estallido: reporte de caso / Medical-legal analysis of blow out fracture of the orbit: case report

La fractura orbitaria por estallido o fractura en "blow out" es una de las fracturas más comunes a nivel facial por lo que su importancia reside en saber identificarlas por el enmascaramiento clínico que podría o no, estar presente. Es de vital importancia complementar la valoración clínica con estudios de imagenología que confirmen las sospechas clínicas. De no hacerlo si el paciente no consulta a un servicio médico quirúrgico la pérdida de la capacidad funcional o la debilitación persistente en la salud ocasionada por la fractura no podrá ser validada en un Dictamen Médico Legal de Secuelas.

The orbital blow out fracture is one of the most common fractures at facial level, so its importance lies in knowing how to identify them due to the clinical masking that may or may not be present. It is of vital importance to complement the clinical evaluation with imaging studies to confirm the clinical suspicions. Otherwise, if the patient does not consult a surgical medical service, the loss of functional capacity or the persistent debilitation in health caused by the fracture cannot be validated in a Forensic Medical Report of Sequelae.

Síndrome de niño agredido: reporte de caso / Battered child síndrome: case report

La valoración médico legal en los casos de Síndrome de niño agredido debe ser minuciosa, y abarcar todos los aspectos que indican los artículos y guías nacionales e internacionales, para tener una certeza diagnóstica, debe incluir una historia médico legal completa, examen físico detallado y estudios complementarios, así como diagnóstico diferencial. El presente artículo abarca algunos de los aspectos principales a tomar en cuenta ante la sospecha de abuso infantil, mediante la presentación y abordaje de un caso clínico.

The medical legal assessment in the cases of Attacked Child Syndrome must be thorough and cover all the aspects indicated in the articles and national and international guides, to have a diagnostic certainty, it must include a complete legal medical history, detailed physical examination and complementary studies, as well as differential diagnosis. This article covers some of the main aspects to consider when suspected of child abuse, through the presentation and approach of a clinical case.

Valor añadido de las interconsultas con otras especialidades médicas en el peritaje médico legal / The added value of interconsultations with other medical specialties in forensic expertise

Resumen La pericia médico legal es compleja y su resultado debe estar fundamentado considerando el análisis de varios elementos de juicio, como: la historia médico legal, el examen físico, el análisis de los expedientes médicos, estudios de laboratorio e imágenes radiológicas y en algunos casos, inclusive una interconsulta realizada a otros especialistas. El perito médico forense utiliza la interconsulta a especialistas para solventar la brecha que existe entre el conocimiento profesional y específico que posee una especialidad y una interrogante médico legal, por lo que difiere en gran manera en el objetivo, formulación y resultado de una interconsulta médica hospitalaria. Por esta razón, esta reflexión pretende contextualizar la importancia del recurso de interconsulta médica dentro del análisis pericial forense, que es un tema poco conocido en la medicina asistencial, y justificar la relevancia de la educación médica continua para los médicos especialistas que realizan las interconsultas y para quienes las solicitan.

Abstract The medical-legal report is complex and its result must be based on the análisis of various elements of judgment, such as: the legal medical history, the physical examination, the analysis of the medical records, laboratory and radiological images and in some cases, even an interconsultation with other specialists. The forensic medical expert uses the interconsultation with specialists to solve the gap that exists between the professional and specific knowledge that a specialty has and a legal medical question, for which it differs greatly in the objective, formulation and result of a hospital medical interconsultation. For this reason, this reflection aims to contextualize the importance of the resource of medical interconsultation within the forensic expert analysis, which is a little-known topic in healthcare medicine, and to justify the relevance of continuing medical education for medical specialists who perform interconsultations and for those who request them.

Research Progresses of Tri-Allelic Patterns in Autosomal STR in Forensic DNA Analysis / 法医学杂志

Tri-allelic pattern in autosomal STR is a common abnormal typing phenomenon in forensic DNA analysis, which brings difficulties and uncertainties to the evaluation of the evidence weight in actual cases. This paper reviews the types, formation mechanism, occurrence frequency, genetic pattern and quantitative evaluation of evidence of the tri-allelic pattern in autosomal STR in forensic DNA analysis. This paper mainly explains the formation mechanism and genetic patterns based on different types of tri-allelic pattern. This paper also discusses the determination of tri-allelic pattern and the quantitative method of evidence evaluation in paternity testing and individual identification. This paper aims to provide references for scientific and standardized analysis of this abnormal typing phenomenon in forensic DNA analysis.

Exploration and Practice of the "One Combination, Two Highlights, Three Combinations, Four in One" Innovative Talents Training Mode in Forensic Medicine / 法医学杂志

Talent is one of the basic and strategic supports for building a modern socialist country in all aspects. Since the 1980s, the establishment of forensic medicine major and the cultivation of innovative talents in forensic medicine have become hot topics in higher education in forensic medicine. Over the past 43 years, the forensic medicine team of Shanxi Medical University has adhered to the joint education of public security and colleges, and made collaborative innovation, forming a training mode of "One Combination, Two Highlights, Three Combinations, Four in One" for innovative talents in forensic medicine. It has carried out "5+3/X" integrated reform, and formed a relatively complete talent training innovation mode and management system in teaching, scientific research, identification, major, discipline, team, platform and cultural construction. It has made a historic contribution to China's higher forensic education, accumulated valuable experience for the construction of first-class major and first-class discipline of forensic medicine, and provided strong support for the construction of the national new forensic talent training system. The popularization of this training mode is conducive to the rapid and sustainable development of forensic science, and provides more excellent forensic talents for national building, regional social development and the discipline construction of forensic science.

Survey on the Construction Status of Forensic Virtual Autopsy Laboratory and the Applicability of Laboratory Accreditation / 法医学杂志

OBJECTIVES@#To survey the development status and actual needs of virtual autopsy technology in China and to clarify the applicability of forensic virtual autopsy laboratory accreditation.@*METHODS@#The questionnaire was set up included three aspects：(1) the current status of virtual autopsy technology development; (2) the accreditation elements such as personnel, equipment, entrustment and acceptance, methods, environmental facilities; (3) the needs and suggestions of practicing institutions. A total of 130 forensic pathology institutions were surveyed by online participation through the Questionnaire Star platform.@*RESULTS@#Among the 130 institutions, 43.08% were familiar with the characteristics of virtual autopsy technology, 35.38% conducted or received training in virtual autopsy, and 70.77% have establishment needs (including maintenance). Relevant elements were suitable for laboratory accreditation.@*CONCLUSIONS@#Virtual autopsy identification has gained social recognition. There is a demand for accreditation of forensic virtual autopsy laboratory. After the preliminary assessment, considering the characteristics and current situation of this technology, China National Accreditation Service for Conformity Assessment (CNAS) can first carry out the accreditation pilot of virtual autopsy project at large comprehensive forensic institutions with higher identification capability, and then CNAS can popularize the accreditation in a wide range when the conditions are suitable.

Progress in the Application of Magnetic Nanoparticles in Forensic Trace Analysis / 法医学杂志

Given the complexity of biological samples and the trace nature of target materials in forensic trace analysis, a simple and effective method is needed to obtain sufficient target materials from complex substrates. Magnetic nanoparticles (MNPs) have shown a wide range of application value in many research fields, such as biomedicine, drug delivery and separation, due to their unique superparamagnetic properties, stable physical and chemical properties, biocompatibility, small size, high specific surface area and other characteristics. To apply MNPs in the pretreatment of forensic materials, maximize the extraction rate of the target materials, and minimize interference factors to meet the requirements of trace analysis of the target materials, this paper reviews the application of MNPs in the fields of forensic toxicological analysis, environmental forensic science, trace evidence analysis and criminal investigation in recent years, and provides research ideas for the application of MNPs in forensic trace analysis.

Animal DNA Typing and Its Research Progress in Forensic Medicine / 法医学杂志

With the advance of molecular biology, DNA analysis technology has been widely applied in forensic science. Non-human DNA analysis can be used in some special cases and has unique forensic value to provide investigation clues and trial basis. Animal DNA typing plays a more prominent role in the detection of all kinds of non-human DNA related cases and is the main content of forensic non-human DNA analysis. This paper reviews the development history, present situation, advantages and disadvantages of animal DNA typing according to its technology, characteristic, challenges facing forensic science application scenarios, and also its future development.

Age Estimation Based on DNA Methylation and Its Application Prospects in Forensic Medicine / 法医学杂志

With the improvement of DNA methylation detection techniques, studies on age-related methylation sites have found more age-specific ones across tissues, which improves the sensitivity and accuracy of age estimation. In addition, the establishment of various statistical models also provides a new direction for the age estimation of tissues from different sources. This review summarizes the related studies of age estimation based on DNA methylation from the aspects of detection technology, age-related cytosine phosphate guanine site and model selection in recent years.

Comparative of Forensic DNA Identification Using Cell Lysis Method and Magnetic Beads Method / 法医学杂志

OBJECTIVES@#To compare the effects of cell lysis method and magnetic beads method in forensic DNA identification and to explore these two methods in forensic DNA identification.@*METHODS@#The genome DNA of THP-1 cells in different quantities was extracted by the cell lysis method and magnetic beads method, and the DNA content was quantified by real-time quantitative PCR. The cell lysis method and magnetic beads method were used to type the STR of human blood with different dilution ratios.@*RESULTS@#When the numbers of THP-1 cell were 100, 400 and 800, the DNA content extracted by cell lysis method were (1.219±0.334), (5.081±0.335), (9.332±0.318) ng, respectively; and the DNA content extracted by magnetic beads method were (1.020±0.281), (3.634±0.482), (7.896±0.759) ng, respectively. When the numbers of THP-1 cells were 400 and 800, the DNA content extracted by the cell lysis method was higher than that by the magnetic beads method. The sensitivity of cell lysis method and magnetic beads method was similar in STR typing of human blood at different dilution ratios. Complete STR typing could be obtained at 100, 300 and 500-fold dilutions of blood samples, but could not be detected at 700-fold dilution. STR typing of undiluted human blood could not be detected by cell lysis method.@*CONCLUSIONS@#The cell lysis method is easy to operate and can retain template DNA to the maximum extend. It is expected to be suitable for trace blood evidence tests.

Identification of Human Body Fluid Stains and Non-Biological Stains by Three-Dimensional Fluorescence Spectroscopy / 法医学杂志

OBJECTIVES@#To establish a rapid and nondestructive identification method for human body fluid stains and non-biological stains using three-dimensional fluorescence spectroscopy.@*METHODS@#The collected three-dimensional fluorescence spectrum data of human saliva, 3% blood, coffee and Fanta® stains were processed with dimensionality reduction. After wavelet transform, spectral denoising and feature extraction, the classification formula was established. The Fisher discriminant was used for spectrum matching and recognition to establish the analysis method to distinguish stain types.@*RESULTS@#According to the results of data training and comparison, all the recognition accuracies of Fanta®, coffee, saliva and blood were more than 91.39%. Among them, saliva reached 100% recognition accuracy.@*CONCLUSIONS@#Three-dimensional fluorescence spectroscopy is a potential method for rapid and nondestructive identification of biological and non-biological stains.

Analysis of the Development Trend in Forensic Odontology Based on CiteSpace / 法医学杂志

OBJECTIVES@#To realize the dynamic visualization of forensic odontology based on the bibliometrics methods, and capture the research hotspots and identify the future development trend.@*METHODS@#Literature articles published from January 1995 to December 2020 were searched according to specific subject words in the core data set of Web of Science. The visualization analysis of publishing country, institution, discipline, author, co-cited journal and keywords was performed by CiteSpace 5.7.R5W software.@*RESULTS@#The annual analysis of publications showed an upward trend of forensic odontology research literature year by year, with the number of annual publications more than 110 in the last five years. Developed countries were the main source of contributions and the average centrality was greater than 0.2. The research of forensic odontology involved multiple disciplines, including stomatology, biology, computer science and medical imaging, with a distinct interdisciplinary feature. A total of 115 nodes were obtained by keyword cluster analysis. The principal line of forensic odontology mainly included individual identification and age estimation and the emergence of hotspots was closely related to new technologies. Population-based odontology investigation, improvement of traditional dental age estimation method and dental age estimation based on new technology were popular research in forensic odontology.@*CONCLUSIONS@#Developing countries urgently need to increase the focus on related research. It may be an important direction for the development of forensic odontology to establish and enrich the regional dental database, develop new odontology identification technology combined with frontier and high-end technology, and develop the identification program based on advanced information technology.

Report on Cardiac Gross Pathologic Measurements of Sudden Cardiac Death in Adults / 法医学杂志

OBJECTIVES@#To analyze the gross pathological data of sudden cardiac death (SCD) with different causes, to provide data support for the identification of sudden cardiac death with unknown causes.@*METHODS@#A total of 167 adult SCD cases in the archive of the Forensic Expertise Institute of Nanjing Medical University from 2010 to 2020 were collected. The gross pathological data of SCD cases were summarized and the characteristics of different causes of death were statistically analyzed.@*RESULTS@#The ratio of male to female SCD cases was 3.4∶1. Coronary heart disease was the leading cause of SCD, and mainly distributed in people over 40 years old. SCD caused by myocarditis was mainly distributed in young people and the mean age of death was (34.00±9.55) years. By analyzing the differences in cardiac pathological parameters of SCD with different causes, it was found that the aortic valve circumference was significantly dilated in the SCD caused by aortic aneurysm or dissection (P<0.05). The heart weight of SCD caused by aortic aneurysm or dissection and combined factors was greater, and both pulmonary and tricuspid valvular rings were dilated in the SCD caused by combined factors in adult males (P<0.05).@*CONCLUSIONS@#Various gross pathological measures of SCD with different causes are different, which has reference value in the cause of death identification of SCD.

Resultados del ejercicio de calidad de la Sociedad Latinoamericana de Genética Forense, 2023 / Results of the quality exercise of the Latin American Society of Forensic Genetics, 2023

Introducción: La Sociedad Latinoamericana de Genética Forense, desde el año 2003 organiza ejercicios colaborativos de comparación interlaboratorios a fin de apoyar el fortalecimiento de los laboratorios de Genética Forense de Latinoamérica, siendo el ejercicio de calidad de SLAGF el único que incluye muestras óseas. Objetivo: Presentar los resultados del análisis del ejercicio de calidad de SLAGF correspondientes al año 2023. Metodología: Se diseñó un ejercicio práctico con cinco muestras: dos hisopados bucales (M1 y M2), una muestra de sangre en FTA (M3), una muestra mezcla 1:1 de sangre- sangre en FTA (M4) y un resto óseo (M5), Se envió a los laboratorios un ejercicio teórico con cinco casos; dos de los cuales eran opcionales. Al igual que cinco ejercicios teóricos para los peritos independientes participantes. Por primera vez se incluyó un ejercicio de IVD opcional, los ejercicios están disponibles en: http://slagf.org/resultados-control- slagf-2023/x Resultados: Participaron 30 laboratorios y 12 peritos independientes. En el ejercicio práctico, la muestra cadavérica de restos óseos presentó los mayores desafíos, en la parte teórica fue el ejercicio de IVD. Conclusión: Los desafíos que enfrentan los laboratorios de Genética Forense Latinoamericanos, reflejados en el ejercicio de calidad de SLAGF 2023, son similares a los encontrados por otros grupos que realizan ejercicios de control de calidad en Genética Forense...(AU)

Varices esofágicas en autopsia médicolegal / Esophageal varices in medicolegal autopsy

Masculino, 49 años de edad, con antecedente patológico de Hipertensión Arterial no controlada y alcoholismo crónico, quien presentó dolor en epigastrio y vómitos con sangre (hematemesis), fue llevado a clínica privada de donde es referido a un hospital público, falleciendo al llegar, por lo que fue remitido a autopsia medicolegal...(AU)