ABSTRACT

A infecção pelo Parvovírus B19 (B19V) em pacientes assintomáticos com Vírus da Imunodeficiência Humana (HIV) frequentemente se manifesta como uma doença exantemática com dor nas articulações, o que pode levar ao diagnóstico incorreto de dengue ou outras doenças. Este estudo apresenta um caso de co-infecção B19V/HIV em um paciente inicialmente suspeito de dengue que estava em tratamento em um hospital de referência em Manaus, Amazonas. A amostra foi testada para HIV e vírus da dengue e, em seguida, armazenada a -80°C. O resultado foi positivo para HIV e negativo para dengue, com DNA de B19V recentemente detectado. O B19V deve ser incluído no diagnóstico diferencial, especialmente em regiões propensas a agentes infecciosos que apresentam manifestações clínicas semelhantes.

Human Parvovirus B19 (B19V) infection in asymptomatic Human Immunodeficiency Virus (HIV) patients often presents as an exanthematous illness with joint pain, potentially leading to the misdiagnosis as dengue or other diseases. This study presents a case of B19V/HIV co-infection in a patient initially suspected of having dengue who was undergoing treatment at a reference hospital in Manaus, Amazonas. The sample was tested for HIV and dengue virus and then stored at -80°C. HIV-positive and dengue-negative, with B19V DNA recently detected. B19V should be included in the differential diagnosis, especially in regions prone to infectious agents that present similar clinical manifestations.

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La radiografía de tórax sigue siendo fundamental para la evaluación de patologías torácicas en lactantes. Antes de iniciar su interpretación, muchos autores sugieren revisar la técnica radiológica, ya que a esta edad se presentan varias particularidades técnicas que deben tenerse en cuenta para evitar errores interpretativos y no confundir hallazgos técnicos con patologías. Entre estas particularidades técnicas se deben evaluar: el centraje transversal o rotación, el centraje longitudinal o posición lordótica, el grado de inspiración, la posición de la vía aérea superior, la penetración o exposición de la radiografía, tipos de proyecciones y el movimiento. El objetivo de esta revisión es comentar y ejemplificar las peculiaridades técnicas que presenta la radiografía de tórax en lactantes y que pueden llevar a interpretaciones erróneas.

The chest X-ray remains essential for evaluating thoracic pathology in infants. Before beginning its interpretation, many authors recommend assessing the radiographic technique, as several technical peculiarities must be considered at this age to avoid interpretive errors and prevent mistaking technical artifacts for pathology. The technical aspects to be evaluated include transverse centering or rotation, longitudinal centering or lordotic position, degree of inspiration, upper airway positioning, radiograph penetration or exposure, projection types, and movement. The objective of this review is to discuss and illustrate the technical peculiarities of infant chest X-rays that can lead to erroneous interpretations.

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Abstract Introduction: cystic fibrosis newborn screening must enable its earlier diagnosis, which may enhance outcomes. This study was a series case of delayed-diagnosis children submitted to cystic fibrosis newborn screening. Description: fourteen children were included; eight (57.1%) were due to false-negative screening, while six (42.9%) were due to processing errors. Two samples collected after 30 days of life were incorrectly classified as negative, and four infants with a positive test could not be located due to screening processing errors. Cystic fibrosis diagnosis was confirmed at a median (IQR) age of 5.3 (4.2-7.4) months. Poor nutritional status was the most prevalent clinical sign at diagnosis, being present in 78.6% of infants. The mean (SD) weight-for-length and length-for-age Z-scores were -3.46 (0.84) and -3.99 (1.16), respectively. Half of the children had Pseudo-Bartter syndrome, and 42.9% had breathing difficulties. Twelve children (85.7%) required hospitalization, with a median (IQR) length of stay of 17.0 (11.5-26.5) days. Discussion: newborn screening had some faults, from incorrect collections to inefficient active search. Early identification of these children in which screening was unsatisfactory is essential, emphasizing the importance and efforts to not miss them. In the case of a failed test, healthcare professionals must be prepared to recognize the main symptoms and signs of the disease.

Resumo Introdução: a triagem neonatal para fibrose cística deve contribuir para diagnóstico precoce e melhor prognóstico da doença. O estudo é uma série de casos com lactentes submetidos à triagem, porém com diagnóstico tardio da doença. Descrição: quatorze crianças foram incluídas; oito (57,1%) com triagem falso-negativo e seis (42,9%) com erros processuais na triagem neonatal. Duas amostras foram coletadas tardiamente, sendo incorretamente classificadas como negativas e quatro lactentes com triagem positiva não foram localizados, por erros na busca ativa. Confirmou-se o diagnóstico da fibrose cística com idade mediana (IIQ) de 5,3 (4,2-7,4) meses. O Comprometimento nutricional precoce foi o sinal clínico mais prevalente ao diagnóstico, presente em 78,6% das crianças. Os Z escores médios (SD) do peso para altura e altura para idade foram -3,46 (0,84) e -3,99 (1,16), respectivamente. Metade das crianças teve síndrome de Pseudo-Bartter e 42,9% dificuldade respiratória. Doze crianças (85,7%) precisaram hospitalização com tempo mediano de permanência de 17 dias. Discussão: a triagem neonatal para fibrose cística apresentou falhas, desde testes falso-negativos, coletas incorretas, até problemas com a busca ativa. Entretanto, o diagnóstico ágil é essencial e os profissionais de saúde devem reconhecer os sintomas e sinais precoces da doença, mesmo quando a triagem neonatal não for satisfatória.

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Objetivo: rastrear os principais erros do processo da fase pré-analítica do Laboratório de Patologia Clínica e realizar um benchmarking com o estudo internacional coordenado pela IFCC (Federação Internacional de Química Clínica). Método: foram acompanhados quatorze indicadores pertencentes à fase pré-analítica, utilizando os dados contidos no sistema LIS. Foram calculados os defeitos por milhão de oportunidades (DPMO) e SIGMA de cada indicador e realizado benchmarking com a IFCC. Resultados: foram rastreados 5.541 erros nos 14 indicadores, e 8 desses indicadores do Inca apresentaram pontuações maiores ou iguais quando comparados ao IFCC. Hemólise e fibrina após centrifugação foram os indicadores com pior índice e deveriam receber maior atenção pelas equipes laboratoriais. Conclusão: um Manual de Gerenciamento de Erros Pré-analíticos foi elaborado para padronizar processos, melhorar indicadores e manter a qualidade daqueles que são minimamente aceitáveis.

Objective: to track the main errors in the process of the pre-analytical phase of the Clinical Pathology Laboratory and perform a benchmarking with the international study coordinated by the IFCC (International Federation of Clinical Chemistry). Method: fourteen indicators belonging to the pre-analytical phase were tracked, using the data contained in the LIS system. Defects per million opportunities (DPMO) and SIGMA of each indicator were calculated and benchmarking was performed with IFCC. Results: a total of 5,541 errors were tracked in the 14 indicators, and 8 of these Inca indicators displayed higher or equal scores when compared to IFCC. Hemolysis and fibrin after centrifugation were the indicators with the worst index and should be paid more attention by laboratory teams. Conclusion: the Pre-analytical Error Management Manual was prepared to standardize processes, improve indicators and, maintain the quality of those that are minimally acceptable.

Objetivo: rastrear los principales errores en la fase preanalítica del Laboratorio de Patología Clínica y compararlos con el estudio internacional coordinado por la IFCC (International Federation of Clinical Chemistry). Método: se realizó el seguimiento de catorce indicadores pertenecientes a la fase preanalítica a partir de los datos contenidos en el sistema LIS. Se calcularon los defectos por millón de oportunidades (DPMO) y el SIGMA de cada indicador y se compararon con los de la IFCC. Resultados: se rastrearon 5.541 errores en los 14 indicadores, y 8 de ellos obtuvieron puntuaciones superiores o iguales a las del IFCC. La hemólisis y la fibrina tras la centrifugación fueron los indicadores con peores puntuaciones y deberían recibir mayor atención por parte de los equipos de laboratorio. Conclusión: se elaboró un Manual de Gestión de Errores Preanalíticos para estandarizar los procesos, mejorar los indicadores y mantener la calidad de los mínimamente aceptables.

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To improve the diagnosis of atypical lymphocytes and reduce the misdiagnosis rate,we analyzed the medical records of 2 cases with cell morphology suggestive of atypical lymphocytes.One case was diagnosed with infectious mononucleosis and the other with aggressive NK cell leukemia.The purpose of this paper is to emphasize that the diagnosis of atypical lymphocytes based only on morphological interpretation of cells may be incorrect,which should be combined with clinical symptoms,signs,imaging examination,cell immunophenotype,and disease outcome.

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Objective: To investigate the misdiagnosis of area postrema syndrome (APS) manifesting as intractable nausea, vomiting and hiccups in neuromyelitis optic spectrum disease (NMOSD) and reduce the risk of misdiagnosis. Methods: We retrospectively analyzed data from NMOSD patients attending the Department of Neurology at the First Medical Center of PLA General Hospital between January 2019 and July 2021. SPSS25.0 was then used to analyze the manifestations, misdiagnosis, and mistreatment of APS. Results: A total of 207 patients with NMOSD were included, including 21 males and 186 females. The mean age of onset was 39±15 years (range: 5-72 years). The proportion of patients who were positive for serum aquaporin 4 antibody was 82.6% (171/207). In total, 35.7% (74/207) of the NMOSD patients experienced APS during the disease course; of these patients, 70.3% (52/74) had APS as the first symptom and 29.7% (22/74) had APS as a secondary symptom. The misdiagnosis rates for these conditions were 90.4% (47/52) and 50.0% (11/22), respectively. As the first symptom, 19.2% (10/52) of patients during APS presented only with intractable nausea, vomiting and hiccups; 80.8% (42/52) of patients experienced other neurological symptoms. The Departments of Gastroenterology and General Medicine were the departments that most frequently made the first diagnosis of APS, accounting for 54.1% and 17.6% of patients, respectively. The most common misdiagnoses related to diseases of the digestive system and the median duration of misdiagnosis was 37 days. Conclusions: APS is a common symptom of NMOSD and is associated with a high rate of misdiagnosis. Other concomitant symptoms often occur with APS. Gaining an increased awareness of this disease/syndrome, obtaining a detailed patient history, and performing physical examinations are essential if we are to reduce and avoid misdiagnosis.

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Pneumoconiosis is characterized by chronic lung inflammation and fibrosis, and inflammation can promote pulmonary fibrosis, which in turn leads to pneumoconiosis. When a large shadow with a long diameter of not less than 2 cm and a short diameter of not less than 1 cm appears in the lung, it can be classified as stage Ⅲ pneumoconiosis. This paper reports a case of stage Ⅲ pneumoconiosis with a large shadow in the upper right lung accompanied by burr-like changes misdiagnosed as lung cancer by CT examination.When the large shadow lesions in patients with pneumoconiosis and lung cancer are difficult to distinguish on CT, an additional MRI examination, particularly T(2)W imaging sequence is useful sequence for identifying the two.

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Adenoid cystic carcinoma usually occurs in the salivary glands of the head and neck. It is a malignant tumor with a high degree of malignancy, resistance to radiotherapy and chemotherapy and poor prognosis. The clinical course of adenoid cystic carcinoma is slow and easy to be misdiagnosed. The main diagnosis and treatment means are individualized and precise treatment under the multi-disciplinary consultation mode, that is, surgical treatment and radiotherapy and chemotherapy. Adenoid cystic carcinoma is prone to relapse and hematologic metastasis, and the traditional radiotherapy and chemotherapy based therapies have not achieved satisfactory efficacy in the past three decades. How to detect, diagnose and treat early is an urgent task faced by clinicians.

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Background. Patient safety research is scarce in developing countries. Estimates of patient harm due to healthcare processes in resource-poor settings are thought to be greater than those in developed countries. Ideally, errors in healthcare should be seen as opportunities to improve the future quality of care. Objective. This study aimed to investigate patient safety culture within high-risk units of a tertiary hospital in South Africa. Methods. A quantitative, descriptive, cross-sectional methodology, using a survey questionnaire that measured 10 safety dimensions and one outcome measure among clinical and nursing staff, was employed. Results. Two hundred participants completed the survey questionnaire. Areas of strength identified by the participants included organizational learning (91.09%), staff attitudes (88.83%), and perceptions of patient safety (76.65%). Dimensions that have potential for improvement included awareness and training (74.04%), litigation (73.53%), feedback and communication about errors (70.77%), non-punitive response to error reporting (51.01%), size and tertiary level of the hospital (53.76%), and infrastructure and resources (58.07%). The only dimension identified as weak was teamwork and staffing (43.72%). In terms of the patient safety grade, respondents graded their own units highly but graded the hospital as a whole as having a poor patient safety grade. Conclusion. There are still significant gaps in the quality of care provided at this tertiary hospital. The current patient safety culture is perceived as punitive in nature with regard to reporting adverse events. It is advised that targeted patient safety improvements be made, followed by further investigation

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RESUMO Objetivo Estudar o processo de diagnóstico audiológico de lactentes que falharam na Triagem Auditiva Neonatal Universal (TANU). Métodos Análise dos prontuários de 51 lactentes que falharam na TANU nas maternidades do munícipio e que foram encaminhados a um centro de referência em saúde auditiva para diagnóstico audiológico, entre janeiro e junho de 2021. Foram identificados os lactentes que finalizaram o diagnóstico, aqueles que não compareceram ao agendamento para exames ou evadiram durante o processo. Tentativas de contato foram realizadas com os responsáveis pelos lactentes que evadiram, para identificar o motivo da evasão. Resultados O comparecimento ao diagnóstico ficou em 75%, com evasões entre o encaminhamento da maternidade para o centro de referência, bem como durante o processo de diagnóstico. Cinquenta por cento dos sujeitos concluíram as avaliações audiológicas até os 3 meses de vida. A tentativa de contato foi bem-sucedida com os responsáveis pelos lactentes que evadiram, sendo os motivos mais frequentes: adoecimento do lactente, distância entre a moradia e o centro de referência, horário de trabalho dos pais. Conclusão Na etapa de diagnóstico, o índice de comparecimento e o tempo de conclusão até o terceiro mês de vida da criança ficaram abaixo dos índices recomendados, diminuindo a efetividade do Programa de Triagem Auditiva Neonatal Universal (PTANU). A busca ativa por contato telefônico e uso de aplicativo de mensagem telefônico foi importante para reduzir a evasão em 76%. Outras ferramentas que aprimorem o processo para um diagnóstico não prolongado, evitando evasões, necessitam ser estudadas.

ABSTRACT Purpose To study the process of hearing assessment in infants who were referred by professionals responsible for Universal Newborn Hearing Screening (UNHS). Methods Analysis of the medical records of 51 infants referred by maternity hospitals where UNHS was performed and were referred to a Hearing Health Center, between January and June 2021. Infants who completed hearing assessment, who never attended the appointments, or were lost during the diagnostic process were identified. Attempts were made to contact infants' guardians in order to understand the reason for missing the appointments. Results The attendance to the diagnosis was 75%. Fifty percent of the infants completed hearing assessment as recommended, up to 3 months of life. The attempt to contact parents who missed the appointments was successful, and the most frequent reasons are: the infant was ill on the day of scheduled appointment, distance from home to the hearing health center, parents' working hours. Conclusion For the diagnostic stage, the attendance rate and the age for completing hearing assessment were below the recommended. The active search for telephone contact and use of phone messaging application was important to reduce evasion by seventy-six percent. Tools that optimize the diagnostic process with less infants missing still must be studied.

ABSTRACT

Na prática clínica da dermatologia não é incomum nos depararmos com situações desafiadoras, de difícil caracterização e que podem nos induzir ao erro diagnóstico. Quadros cutâneos com apresentações semelhantes entre si estão aqui inclusas e, neste caso, é de suma importância a atuação do médico dermatologista de forma a unir as informações da anamnese, exame físico e exames complementares, a fim de excluir condições de pior prognóstico e que requerem atuação mais agressiva de outras condições benignas e/ou com menor impacto negativo. Apresentamos abaixo uma dessas situações de desafio diagnóstico em que uma lesão cutânea secundária à osteomielite crônica foi inicialmente atribuída à causa inflamatória ou neoplásica (AU)

In the clinical practice of Dermatology, it is not uncommon to encounter challenging situations that are difficult to characterize and may lead to misdiagnosis. Skin conditions with similar presentations are included here and, in this case, it is of utmost importance that the dermatologist combines information from the medical history, physical examination and complementary tests in order to exclude conditions with worse prognosis and that require more aggressive action than other benign conditions and/or with less negative impac (AU)

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INTRODUCCIÓN: Se revisan los principales errores en la colocación de los electrodos para el registro del ECG. Se ilustran algunos de ellos y se comenta sobre los errores en los informes que pueden tener repercusiones en el diagnóstco clínico.

ABSTRAC: The main mistakes in the placement of electrodes during the recording of an ECG are reviewed. Some of them are illustrated and the consequences for clinical diagnosis are discussed.

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El suicidio ­o las autolesiones como su antecesor mortífero­ no suelen ser más que una pantalla a un dolor imposible de ser procesado por el sujeto que padece. Las coordenadas que lo atraviesan se amplían, convergen y torsionan en una espiral sin fin cuando ya no quedan recursos para encontrar una salida vital. El proyecto de vida pareciera impensable, en especial, cuando las múltiples versiones de lo ominoso se hacen presentes. Si además el tiempo etario donde aparecen coincide con un tiempo crucial ­adolescencia, jóvenes, adultos mayores­ suele requerirse algún modo de apuntalamiento al Yo en crisis. En este episodio de New Amsterdam vemos como el desinvestimiento subjetivo que produce la invisibilidad del sujeto para los objetos externos diferenciados madre familia (Aulagnier,2004) hacen a una joven intentar construir su identidad bajo un tiempo extremo de angustia

Suicide ­or self-harm like its deadly predecessor­ are usually nothing more than a screen for a pain impossible to be processed by the subject who suffers. The coordinates that pass through it expand, converge and twist in an endless spiral when there are no more resources left to find a vital exit. The life project seems unthinkable, especially when the multiple versions of the ominous are present. If, in addition, the age period in which they appear coincides with a crucial time ­ adolescence, youth, older adults ­ some form of propping up the Self in crisis is usually required. In this episode of New Amsterdam we see how the subjective disinvestment that produces the invisibility of the subject for the differentiated external objects mother-family (Aulagnier, 2004) makes a young woman try to build her identity under an extreme time of anguish

ABSTRACT

INTRODUCCIÓN: El nuevo coronavirus ha continuado propagándose por todo el mundo donde existen otras enfermedades endémicas que han sido una carga para la salud pública durante muchos años. Como cualquier infección, se habría esperado encontrar en coinfección con algunas de éstas. Específicamente, los países tropicales y subtropicales han venido manejando la carga del dengue a medida que aumentan los picos con períodos de tiempo más cortos. OBJETIVO: Resumir la evidencia que existe en la coinfección relacionada con el SARS-CoV-2 y el virus del dengue. METODOLOGÍA: Se realizó una revisión narrativa en bases de datos sobre reportes de coinfección y diagnóstico erróneo de SARS-CoV-2 y el dengue dado que la temporada de lluvias cada año aumenta la prevalencia de infecciones virales en países endémicos. Informes recientes incluso han descrito casos positivos en uno de estas infecciones que luego resultaron en falso positivo. Una prueba positiva para COVID-19 o fiebre del dengue en áreas endémicas no debe excluir la otra infección. CONCLUSIÓN: A partir de ahora, estos dos deberían ser considerados como un diagnóstico diferencial y esto debe generar preocupación de salud pública por su coinfección en países endémicos para reforzar la promoción y prevención a las comunidades y mitigar estas enfermedades.

BACKGROUND: Novel coronavirus has continued to spread throughout the world where there are other endemic diseases that have been a burden to public health for many years. As any infection, it was expected there could be coinfection between these. Tropical and subtropical countries are currently managing with dengue as peaks increase with shorter periods of time. AIM: To summarize the evidence that exists in the co-infection related to SARS-CoV-2 and the dengue virus. METHOD: We conducted a narrative review in data bases about reports of coinfection and misdiagnosis of SARS-CoV-2 and dengue virus given the fact that rainy season every year increase the prevalence of viral infections in endemic countries. Recent reports have even described positive cases in one of these infections that later resulted in false positive. A positive test for COVID-19 or dengue fever in endemic areas should not exclude the other infection. CONCLUSION: From now on, these two should be considered as a differential diagnosis and this should raise public health concern for COVID-19 and dengue coinfection in endemic countries to reinforce promotion and prevention to communities to prevent these diseases.

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Background and objectives: Leprosy is an infectious disease in which early diagnosis is a decisive factor to prevent disability and disabilities. This study sought to analyze the panorama of leprosy between 2016 and 2021 in the state of Rio Grande do Sul and unveil the importance of medical education in the context of Neglected Tropical Diseases during the Sars-CoV-2 pandemic. Methods: Cross-sectional study using the State Center database of Health Surveillance of Rio Grande do Sul. In the data collection, were included leprosy data of individuals residents in the state of Rio Grande do Sul (RS), in the 2016 period 2021. The variables analyzed were confirmed leprosy cases, notified cases, the number of cases in terms of operational classifications of leprosy, the therapeutic scheme, and the number of cases according to the degrees of physical disability. Results: Over this period, 725 cases were confirmed as leprosy, 70% in the years 2016, 2017 and 2018. Of the total number of cases, 88% were Multibacillary form of the disease, 50% had some degree of disability at diagnosis time and 80% underwent the standard treatment regimen. Conclusion: There is a delay in leprosy diagnosis, and there is underdiagnosis of the disease in the state of Rio Grande do Sul: which highlights the need to reaffirm educational practices on mycobacteriosis.(AU)

Justificativa e objetivos: A hanseníase é uma doença infectocontagiosa na qual o diagnóstico precoce é fator decisivo para prevenir incapacidade e deficiências. O presente estudo buscou analisar o panorama da hanseníase entre os anos de 2016 e 2021 no estado do Rio Grande do Sul, desvelando a importância da educação médica no contexto das Doenças Tropicais Negligenciadas durante a pandemia da Sars-CoV-2. Métodos: Estudo transversal por meio da base de dados do Centro Estadual de Vigilância em Saúde do Rio Grande do Sul. Na coleta de dados, foram incluídos os dados de hanseníase em indivíduos residentes do estado do Rio Grande do Sul (RS), no período de 2016 a 2021. As variáveis analisadas foram os casos confirmados de hanseníase, os casos notificados, o número de casos quanto às classificações operacionais de hanseníase, o esquema terapêutico e o número de casos de acordo com os graus de incapacidade física. Resultados: No período analisado, foram confirmados 725 casos de hanseníase, sendo 70% nos anos de 2016, 2017 e 2018. Do número total de casos, 88% eram a forma multibacilar da doença, 50% apresentaram algum grau de incapacidade física no momento do diagnóstico e 80% realizaram o esquema terapêutico padrão. Conclusão: Existe atraso no diagnóstico de hanseníase e há subdiagnóstico da doença no estado do Rio Grande do Sul, o que evidencia a necessidade de reafirmação das práticas educacionais sobre a micobacteriose.(AU)

Justificación y objetivos: La lepra es una enfermedad infecciosa en la que el diagnóstico precoz es un factor decisivo para prevenir la incapacidad y las discapacidades. Este estudio buscó analizar el panorama de la lepra entre 2016 y 2021 en el estado de Rio Grande do Sul y develar la importancia de la educación médica en el contexto de las Enfermedades Tropicales Desatendidas durante la pandemia Sars-CoV-2. Métodos: Estudio transversal con datos del Centro Estatal de Vigilancia en Salud de Rio Grande do Sul. La recolección de datos incluyó datos sobre lepra en individuos residentes en el estado de Rio Grande do Sul (RS), de 2016 a 2021. Las variables analizadas fueron casos confirmados de lepra, casos notificados, el número de casos en términos de clasificaciones operativas de lepra, el esquema terapéutico y el número de casos según los grados de discapacidad física. Resultados: En el período analizado se confirmaron 725 casos de lepra, 70% en los años 2016, 2017 y 2018. Del total de casos, 88% fueron la forma multibacilar de la enfermedad, 50% tenían algún grado de discapacidad física en el momento del diagnóstico y el 80% realizó el régimen terapéutico padrón. Conclusiones: Hay un retraso en el diagnóstico de la lepra y hay un infradiagnóstico de la enfermedad en el estado de Rio Grande do Sul: lo que pone de relieve la necesidad de reafirmar las prácticas educativas sobre micobacteriosis.(AU)

ABSTRACT

Renal artery thrombosis can cause acute occlusion of unilateral or bilateral renal arteries,and kidney failure would be induced if it is not diagnosed and treated in time.Therefore,rapid and correct treatment is especially important for renal artery thrombosis.Due to the lack of specificity of clinical manifestations,this disease in commonly misdiagnosed or missed and thus has a low early diagnosis rate.Here we report a case of acute renal artery thrombosis to improve the diagnosis and treatment.

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Pseudomyogenic hemangioendothelioma (PHE) is a rare angiogenic tumor. Histologically, the morphological characteristics of neoplastic vessels and endothelial differentiation are not obvious, and it is easy to be confused with epithelioid sarcoma, epithelioid hemangioendothelioma and myogenic tumor. PHE usually occurs in arms and legs in young people and has a significant male predominance. The tumor has a predilection for the distal extremities and its typical manifestation is multiple center invasion of a single limb, which can involve all layers of skin and subcutaneous tissues,and is often accompanied by abvious pain. Histologically, PHE is characterized by infiltrative growth of tumor. Most tumor lesions are composed of sheets and loose fascicles of plump spindle or epithelioid cells within a background of variably prominent inflammatory infiltration, which was commonly composed of neutrophils. Some cells may resemble rhabdomyoblasts, and nuclear atypia and mitosis were rare. The tumor cells generally expressed positive cytokeratin (CK), ETS-related gene (ERG), Friend leukemia virus integration 1 (FLI1) and integrase interactor 1(INI1). In some cases, the tumor cells expressed CD31. A case of a young woman was reported in this paper, who presented with a subcutaneous mass with severe pain and was chronologically misdiagnosed with herpes zoster, low-grade malignant fibrous histiocytoma and epithelioid hemangioendothelioma. In this study, the clinical and pathological features, differential diagnosis and the latest progress in therapy of PHE were analyzed based on relevant literature.

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Objetivo: descrever e reclassificar os diagnósticos de outras neoplasias de exames histopatológicos do colo do útero registrados no Sistema de Informação do Câncer (Siscan), Brasil, 2013-2020. Métodos: estudo descritivo dos diagnósticos compilados no campo "outras neoplasias malignas" do Siscan; os diagnósticos foram avaliados por patologista e reclassificados nas categorias existentes no formulário; foram calculadas frequências absolutas e relativas dos diagnósticos registrados incorretamente. Resultados: o diagnóstico "outras neoplasias malignas" representou 2,4% (n = 5.778) dos diagnósticos, dos quais 67,4% poderiam ser registrados em categorias existentes, 8,9% eram efetivamente outros tipos de neoplasias malignas, e 24,5% apresentavam resultados não compatíveis com outras neoplasias, como achados benignos ou fora do colo do útero, não disponíveis nos campos existentes. Conclusão: o campo "outras neoplasias malignas" é frequentemente utilizado de maneira inadequada, no Siscan; constata-se a necessidade de capacitar os profissionais para o adequado uso dos campos do sistema e incluir novas categorias diagnósticas no formulário.

Objetivo: describir y reclasificar los diagnósticos registrados en el campo "otras neoplasias malignas" de exámenes histopatológicos del cuello uterino en el Sistema de Información del Cáncer (Siscan), Brasil, 2013-2020. Métodos: estudio descriptivo del campo "otras neoplasias malignas" en Siscan; estudio descriptivo de las fichas diagnósticas recopiladas en el campo "otras neoplasias malignas" en Siscan entre 2013 y 2020. Resultados: los diagnósticos histopatológicos "otras neoplasias malignas" representaron el 2,4% (n = 5.778) del total, de los cuales el 67,4% se pudo registrar en las categorías existentes, el 8,9% fueron en realidad otros tipos de neoplasias malignas y el 24,5% fueron resultados no compatibles con otras neoplasias y que no estaban incluidas en las opciones existentes. Conclusión: el campo "otras neoplasias malignas" es frecuentemente utilizado de manera inadecuada, en Siscan; existe la necesidad de capacitar a los profesionales para que utilicen correctamente los campos del sistema e incluyan nuevas categorías de diagnóstico en el formulario.

Objective: to describe and reclassify cervical histopathology test result diagnoses recorded as other neoplasms on the Cancer Information System (SISCAN), Brazil, 2013-2020. Methods: this was a descriptive study based on diagnoses input to the "other malign neoplasms" field on the SISCAN; a pathologist assessed the diagnoses and reclassified them based on the categories existing on the standardized record form; absolute and relative frequencies of incorrectly recorded diagnoses were calculated. Results: histopathology test results registered as "other malign neoplasms" accounted for 2.4% (n = 5,778) of all records, 67.4% of which in fact fell into categories already existing on the form, 8.9% were indeed other neoplasms and 24.5% were results not compatible with other neoplasms and were not covered by the form categories, such as benign findings or findings outside the cervix. Conclusion: the "other malignant neoplasms" field is frequently misused on the SISCAN; the analysis highlighted the need to train professionals to use the system properly, as well as the need to include new categories on the form.

ABSTRACT

Objective: This study aimed to determine the sigma metrics of analytes when using different total allowable error guidelines.Methods: A retrospective analysis was performed on 19 general chemistry analytes at Charlotte Maxeke Johannesburg Academic Hospital in South Africa between January 2017 and December 2017. Sigma metrics were calculated on two identical analysers, using internal quality control data and total allowable error guidelines from the Ricos biological variation database and three alternative sources (the Royal College of Pathologists of Australasia, the Clinical Laboratory Improvements Amendment, and the European Federation of Clinical Chemistry and Laboratory Medicine). Results: The sigma performance was similar on both analysers but varied based on the guideline used, with the Clinical Laboratory Improvements Amendment guidelines resulting in the best sigma metrics (53% of analytes on one analyser and 46% on the other had acceptable sigma metrics) and the Royal College of Pathologists of Australia guidelines being the most stringent (21% and 23%). Sodium and chloride performed poorly across all guidelines (sigma < 3). There were also month-to-month variations that may result in acceptable sigma despite poor performance during certain months.Conclusion: The sigma varies greatly depending on the total allowable error, but could be a valuable tool to save time and decrease costs in high-volume laboratories. Sigma metrics calculations need to be standardised

ABSTRACT

ABSTRACT Optical coherence tomography is often used for detection of glaucoma as well as to monitor progression. This paper reviews the most common types of artifacts on the optical coherence tomography report that may be confused with glaucomatous damage. We mainly focus on anatomy-related artifacts in which the retinal layer segmentation and thickness measurements are correct. In such cases, the probability maps (also known as deviation maps) show abnormal (red and yellow) regions, which may mislead the clinician to assume disease is present. This is due to the anatomic variability of the individual, and the normative database must be taken into account.

RESUMO A tomografia de coerência óptica é frequentemente usada para detectar glaucoma, bem como para monitorar a progressão. Este artigo analisa os tipos mais comuns de artefatos no relatório de tomografia de coerência óptica que podem ser confundidos com danos glaucomatosos. Nós nos concentramos principalmente nos artefatos relacionados à anatomia em que a segmentação da camada da retina e as medidas de espessura estão corretas. Nesses casos, os mapas de probabilidade (também conhecidos como mapas de desvio) mostram regiões anormais (vermelho e amarelo), o que pode induzir o clínico em erro ao supor que a doença está presente. Isto se deve à variabilidade anatômica do indivíduo, e o banco de dados normativo deve ser levado em conta.