Waste in laboratory medicine
(Source: Jornal Brasileiro de Patologia e Medicina Laboratorial)
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - September 28, 2017 Category: Pathology Source Type: research

Giant nodular pseudoangiomatous stromal hyperplasia of the breast with fibroadenomatoid myxoid changes: a potential pitfall in the differential diagnosis of phyllodes tumor
ABSTRACT A 21-year old woman presented with a 17-cm left breast mass. Physical examination and ultrasound revealed the mass to be well-circumscribed, homogeneous and freely mobile, suggestive of giant fibroadenoma or phyllodes tumor. The mass was surgically excised and initially interpreted as benign phyllodes tumor. Subsequent slide review established the diagnosis of nodular pseudoangiomatous stromal hyperplasia (PASH) associated with fibroadenomatoid areas and myxoid stromal changes. This case illustrates the difficulty encountered in recognizing nodular PASH. A thorough discussion of the histopathologic differential di...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 10, 2017 Category: Pathology Source Type: research

Blended learning strategies in teaching general pathology at a medical course
Conclusion: The use of BL can provide students wit h greater contextualization of pathology in medical practice, contributing to a more meaningful learning.RESUMO Introdu ção: Atualmente, em muitas escolas médicas, percebe-se que o aprendizado de patologia geral é deficiente, principalmente em decorrência do desinteresse pelos conhecimentos não diretamente relacionados com a prática profissional e da falta de recursos pedagógicos que motivem a aprendizagem. O blended learning (BL) é uma metodologia ativa de ensino híbrido que utiliza diferentes recursos tecnológicos, promovendo maior dinamismo e integração d...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 10, 2017 Category: Pathology Source Type: research

Muscle biopsies in dermatomyositis and polymyositis: practical relevance of analyzing different levels of histological sections of the same muscular compartment
Conclusion: Our results stress the importance of evaluating different levels of histological sections from the same muscle biopsy block, in order to minimize possible false-negative results. In addition, the data reinforce that besides the inflammatory infiltrate, the other histological parameters analyzed also occur in foci, justifying the dissociation between these parameters and clinical patients.RESUMO Introdu ção: É frequente na prática médica encontrar achados histológicos com aspectos dentro da normalidade em biópsias musculares de pacientes com dermatomiosite (DM) ou polimiosite (PM). Isso se deve ao fato d...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 10, 2017 Category: Pathology Source Type: research

Creation of a comprehensive proficiency testing program for molecular diagnosis in Brazil
Conclusion: The sera presented necessary requirements as reference material to be transported to laboratories at refrigeration temperature (2 ºC to 8ºC), at the maximum shipping time of 12 hours.RESUMO Introdu ção: O objetivo deste estudo foi avaliar a estabilidade de curta duração de amostras de soro utilizadas como controle de qualidade interno (CQI) de testes imunodiagnósticos de vírus da imunodeficiência humana (HIV)/síndrome da imunodeficiência adquirida (Aids) e sífilis, produzidas no Cent ro de Imunologia do Instituto Adolfo Lutz (IAL) e distribuídas aos laboratórios participantes do Programa de Contr...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 10, 2017 Category: Pathology Source Type: research

Study on the stability of HIV and syphilis reference materials under varied temperature conditions during their transportation
Conclusion: The sera presented necessary requirements as reference material to be transported to laboratories at refrigeration temperature (2 ºC to 8ºC), at the maximum shipping time of 12 hours.RESUMO Introdu ção: O objetivo deste estudo foi avaliar a estabilidade de curta duração de amostras de soro utilizadas como controle de qualidade interno (CQI) de testes imunodiagnósticos de vírus da imunodeficiência humana (HIV)/síndrome da imunodeficiência adquirida (Aids) e sífilis, produzidas no Cent ro de Imunologia do Instituto Adolfo Lutz (IAL) e distribuídas aos laboratórios participantes do Programa de Contr...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 10, 2017 Category: Pathology Source Type: research

No association between glutathione S-transferase M1 and T1 gene polymorphisms and susceptibility to endometriosis
Conclusion: In the present study, the GSTM1 and GSTT1 polymorphisms are not associated with a higher risk of endometriosis.RESUMO Introdu ção: A endometriose é uma doença ginecológica comum influenciada por fatores genéticos e ambientais. A família de glutationa-S-transferase está associada à endometriose porque tem como principal função a detoxificação celular, de modo que a ausência dessas enzimas pode ser um fator no desenvolvimento da doença. Objetivo: Investigar a relação entre polimorfismos nos genes GSTM1 e GSTT1 e endometriose, a fim de melhor compreender a associação entre os genes de detoxifi...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 10, 2017 Category: Pathology Source Type: research

Antimicrobial susceptibility of Streptococcus pneumoniae isolated from patients in the northeastern macroregion of São Paulo state, Brazil, 1998-2013
Conclusion: Monitoring of Streptococcus pneumoniae antimicrobial resistance is essential to guide the appropriate empirical treatment of pneumococcal disease.RESUMO Introdu ção: Em todo o mundo existem relatos de aumento das infecções causadas por Streptococcus pneumoniae resistentes aos antimicrobianos. Objetivo: Avaliar o perfil de suscetibilidade dos sorotipos de Streptococcus pneumoniae, associando-os com as doenças invasivas pneumocócicas (DIP), bem como co m as terapias antimicrobianas. Método: Trata-se de um seguimento retrospectivo com enfoque em dados secundários de 1998 a 2013, na macrorregião nordest...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 10, 2017 Category: Pathology Source Type: research

Description of the quality indicators defined in the National Reference Laboratory in Tuberculosis of CRPHF/Ensp/Fiocruz by means of the process mapping methodology
Conclusion: Through this study, we seek to encourage and impel the managers involved in the field of TB and in the field of health on the utility and the need to control and measure processes, being able to standardize them with the help of indicators or other quality tools.RESUMO Introdu ção: O Laboratório de Referência Nacional (LRN) em Tuberculose (TB) é uma unidade laboratorial de excelência técnica altamente especializada que tem desenvolvido projetos envolvendo a capacitação de recursos humanos e o aprimoramento de técnicas fundamentais para o diagnóstico da TB. Seu propósito é a melhoria contínua de t...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 10, 2017 Category: Pathology Source Type: research

Study of correlation between imatinib mesylate plasma levels and hematological profile of patients undergoing treatment for chronic myeloid leukemia
Conclusion: There was no correlation between the number of leukocytes, platelets and hemoglobin and the serum level of IM, although there is a trend with respect to hemoglobin (p = 0.062).RESUMO Introdu ção: Leucemia mieloide crônica (LMC) é uma desordem genética de células-tronco hematopoiéticas, resultando em uma expansão mieloproliferativa das células sanguíneas. A LMC está associada à presença do cromossomo Philadelphia (Ph), o que gera um oncogene (BCR-ABL). Atualmente, o tratamen to de primeira escolha é o mesilato de imatinibe (MI). Objetivo: Correlacionar os níveis séricos de MI com parâmetros he...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 10, 2017 Category: Pathology Source Type: research

Evaluation of pleural and ascitic fluid analysis on the Sysmex XE-5000 hematology analyzer
Conclusion: XE-5000 provides accurate and precise count for TC-BF, WBC-BF and polymorphonuclear cells (PMN-BF) in pleural and ascitic fluids in medical decision lev els, but the morphological differentiation should continue to be held by OM. Histogram and scattergram displayed on XE-5000 must always be analyzed to assess if there is any interference or flag. The HF-BF parameter is a potential tool for screening.RESUMO Introdu ção: A análise de líquidos corporais é fundamental para o diagnóstico e o acompanhamento de várias condições patológicas. Devido às limitações da contagem manual de células, tem ocorrid...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 10, 2017 Category: Pathology Source Type: research

Muscle biopsy with different levels of histological sections: an old procedure as a “still modern” approach
(Source: Jornal Brasileiro de Patologia e Medicina Laboratorial)
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 10, 2017 Category: Pathology Source Type: research

Ménétrièr disease in a pediatric patient with particular reference to echoendoscopy, endoscopic and anatomopathological presentation and evolutionary and therapeutic aspects
ABSTRACT M énétrier's disease (MD) is included in the group of hypertrophic gastropathy; is a rare gastric hyperplasia that affects adults and children, with different behavior between these groups. We know that its etiology is related to allergens and co-infections. It's characterized by the hypertrophy of the gastric folds, with the appearance of cerebral convolutions on Upper Gastrointestinal Endoscopy (UGE) and, histologically, by the mucosal hypertrophy at the expense of foveolar hyperplasia and atrophy of the glands in body and fundus of the stomach. The UGE together with the gastric tissue biops y confirms the dia...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 19, 2017 Category: Pathology Source Type: research

Diagnostic errors in surgical pathology
ABSTRACT Pathology must aim at a correct and complete diagnosis for the patient, timely, useful and understandable to the physician assistant. However, in daily practice, there are multiple possibilities of errors in the pathology laboratory, with several impacts on patient care and prognosis. In this review, we discuss the different concepts of error and diagnostic concordances in pathology, at which point in the diagnostic process the errors are more frequent, and propose solutions to minimize the chance of their occurrence.RESUMO A patologia deve ter como meta um diagn óstico correto e completo para o paciente, em temp...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 19, 2017 Category: Pathology Source Type: research

CD64 expression on polymorphonuclear cells as a potential marker for monitoring the human cytomegalovirus replication after kidney transplantation
This study aims to investigate if CD64 expression on polymorphonuclear (PMN) cells is useful for the detection of HCMV infection in eleven kidney recipients during sixty days. From the total patients, nine were positive for both pp65 antigenemia and HCMV by quantitative polymerase chain reaction (qPCR), all of which had circulating neutrophils expressing CD64 3-4 weeks prior to pp65 antigenemia peak. These results suggest that quantification of PMN CD64 together with pp65 antigenemia could be useful for the early diagnosis of HCMV after transplantation.RESUMO A infec ção por citomegalovírus humano (CMVH) é a principal ...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 19, 2017 Category: Pathology Source Type: research