Archives of pathology & laboratory medicine最新文献

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Updated Salivary Gland Immunohistochemistry: A Review. 最新涎腺免疫组织化学:综述。
IF 4.6 3区 医学
Archives of pathology & laboratory medicine Pub Date : 2023-12-01 DOI: 10.5858/arpa.2022-0461-RA
Mohammed Amer Swid, Liping Li, Erin M Drahnak, Hayden Idom, William Quinones
{"title":"Updated Salivary Gland Immunohistochemistry: A Review.","authors":"Mohammed Amer Swid, Liping Li, Erin M Drahnak, Hayden Idom, William Quinones","doi":"10.5858/arpa.2022-0461-RA","DOIUrl":"10.5858/arpa.2022-0461-RA","url":null,"abstract":"<p><strong>Context.—: </strong>Salivary gland neoplasms are rare lesions in the head and neck (H&N) pathology realm. There are more than 20 malignant and 15 benign salivary gland neoplasms in the 5th edition of the World Health Organization classification of H&N tumors. These neoplasms consist of heterogeneous groups of uncommon diseases that make diagnosis and treatment challenging for the clinical team. Using an algorithmic immunohistochemical approach-defined tumor origin and type has proven to be effective and advantageous. Immunohistochemistry may be used as sort of a \"diagnostic looking glass,\" not as a positive or negative type tool, but as an indispensable complement to a hematoxylin-eosin morphologic pattern-based approach. Furthermore, the understanding of the novel discoveries of the salivary gland gene fusions and the molecular aspects of these tumors makes the process easier and improve the diagnosis as well as treatment aspects. This review reflects our experience with more recent diagnostic antibodies, which include MYB RNA, Pan-TRK, PLAG1, LEF1, and NR4A3. Each of these is linked with a specific type of neoplasm; for example, gene fusions involving the PLAG1 and HMGA2 oncogenes are specific for benign pleomorphic adenomas, and MYB is associated with adenoid cystic carcinoma.</p><p><strong>Objective.—: </strong>To review these more recent antibodies, which highly enhance salivary gland neoplasm diagnosis.</p><p><strong>Data sources.—: </strong>The study sources involved literature PubMed searches, including multiple review articles, case reports, selected book chapters, and Geisinger Medical Center cases.</p><p><strong>Conclusions.—: </strong>Salivary gland tumors are a rare, varied group of lesions in H&N pathology. We need to have continuous readings and revisions of the molecular consequences of these fusion oncoproteins and their subsequent targets, which will eventually lead to the identification of novel driver genes in salivary gland neoplasms.</p>","PeriodicalId":8305,"journal":{"name":"Archives of pathology & laboratory medicine","volume":" ","pages":"1383-1389"},"PeriodicalIF":4.6,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9752378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Update on the Role of Immunohistochemistry in the Evaluation of Pancreatic/Liver/Gastrointestinal Luminal Tract Disorders. 免疫组织化学在评估胰腺/肝脏/胃肠道疾病中的作用的最新进展
IF 4.6 3区 医学
Archives of pathology & laboratory medicine Pub Date : 2023-12-01 DOI: 10.5858/arpa.2022-0462-RA
Jialing Huang, Guoli Chen, Hongjie Li
{"title":"An Update on the Role of Immunohistochemistry in the Evaluation of Pancreatic/Liver/Gastrointestinal Luminal Tract Disorders.","authors":"Jialing Huang, Guoli Chen, Hongjie Li","doi":"10.5858/arpa.2022-0462-RA","DOIUrl":"10.5858/arpa.2022-0462-RA","url":null,"abstract":"<p><strong>Context.—: </strong>Immunohistochemistry serves as an ancillary diagnostic tool for a wide variety of neoplastic and nonneoplastic disorders, including infections, workup of inflammatory conditions, and subtyping neoplasms of the pancreas/liver/gastrointestinal luminal tract. In addition, immunohistochemistry is also used to detect a variety of prognostic and predictive molecular biomarkers for carcinomas of the pancreas, liver, and gastrointestinal luminal tract.</p><p><strong>Objective.—: </strong>To highlight an update on the role of immunohistochemistry in the evaluation of pancreatic/liver/gastrointestinal luminal tract disorders.</p><p><strong>Data sources.—: </strong>Literature review and authors' research data and personal practice experience were used.</p><p><strong>Conclusions.—: </strong>Immunohistochemistry is a valuable tool, assisting in the diagnosis of problematic tumors and benign lesions of the pancreas, liver, and gastrointestinal luminal tract, and also in the prediction of prognosis and therapeutic response for carcinomas of the pancreas, liver, and gastrointestinal luminal tract.</p>","PeriodicalId":8305,"journal":{"name":"Archives of pathology & laboratory medicine","volume":" ","pages":"1374-1382"},"PeriodicalIF":4.6,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9406058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Erroneous Patient Tissue Contaminants in 1574 Surgical Pathology Slides: Impact on Diagnostic Error and a Novel Framework for Floater Management. 1574例手术病理切片中错误的患者组织污染物:对诊断错误的影响和漂浮物管理的新框架。
IF 4.6 3区 医学
Archives of pathology & laboratory medicine Pub Date : 2023-12-01 DOI: 10.5858/arpa.2022-0265-OA
Simon Lamothe, Masa Peric, Jonathan N Glickman, Yael K Heher
{"title":"Erroneous Patient Tissue Contaminants in 1574 Surgical Pathology Slides: Impact on Diagnostic Error and a Novel Framework for Floater Management.","authors":"Simon Lamothe, Masa Peric, Jonathan N Glickman, Yael K Heher","doi":"10.5858/arpa.2022-0265-OA","DOIUrl":"10.5858/arpa.2022-0265-OA","url":null,"abstract":"<p><strong>Context.—: </strong>Tissue contaminants on histology slides represent a serious risk of diagnostic error. Despite their pervasive presence, published peer-reviewed criteria defining contaminants are lacking. The absence of a standardized diagnostic workup algorithm for contaminants contributes to variation in management, including investigation and reporting by pathologists.</p><p><strong>Objective.—: </strong>To study the frequency and type of tissue contaminants on microscopic slides using standardized criteria. Using these data, we propose a taxonomy and algorithm for pathologists on \"floater\" management, including identification, workup, and reporting, with an eye on patient safety.</p><p><strong>Design.—: </strong>A retrospective study arm of 1574 histologic glass slides as well as a prospective study arm of 50 slide contamination events was performed. Using these data we propose a structured classification taxonomy and guidelines for the workup and resolution of tissue contamination events.</p><p><strong>Results.—: </strong>In the retrospective arm of the study, we identified reasonably sized benign tissue contaminants on 52 of 1574 slides (3.3%). We found size to be an important parameter for evaluation, among other visual features including location on the slide, folding, ink, and tissue of origin. The prospective arm of the study suggested that overall, pathologists tend to use similar features when determining management of potentially actionable contaminants. We also report successfully used case-based ancillary testing strategies, including fluorescence in situ hybridization analysis of chromosomes and DNA fingerprinting.</p><p><strong>Conclusions.—: </strong>Tissue contamination events are underreported and represent a patient safety risk. Use of a reproducible classification taxonomy and a standardized algorithm for contaminant workup, management, and reporting may aid pathologists in understanding and reducing risk.</p>","PeriodicalId":8305,"journal":{"name":"Archives of pathology & laboratory medicine","volume":" ","pages":"1413-1421"},"PeriodicalIF":4.6,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10643436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Utilization of NKX3.1, P501S, Prostate-Specific Antigen, and Steroidogenic Factor 1 to Distinguish Malignant Leydig Cell Tumor From Metastatic Prostatic Adenocarcinoma to the Testis. 应用NKX3.1、P501S、前列腺特异性抗原和甾体生成因子1鉴别睾丸转移性前列腺腺癌与恶性间质细胞瘤
IF 4.6 3区 医学
Archives of pathology & laboratory medicine Pub Date : 2023-12-01 DOI: 10.5858/arpa.2022-0424-OA
Eric Erak, Thomas M Ulbright, Jonathan Epstein
{"title":"Utilization of NKX3.1, P501S, Prostate-Specific Antigen, and Steroidogenic Factor 1 to Distinguish Malignant Leydig Cell Tumor From Metastatic Prostatic Adenocarcinoma to the Testis.","authors":"Eric Erak, Thomas M Ulbright, Jonathan Epstein","doi":"10.5858/arpa.2022-0424-OA","DOIUrl":"10.5858/arpa.2022-0424-OA","url":null,"abstract":"<p><strong>Context.—: </strong>A recent study demonstrated that NKX3.1-positive staining can uncommonly be seen in testicular Sertoli cell tumors (1 of 4 cases). Also, it was reported that 2 of 3 Leydig cell tumors of the testis showed diffuse cytoplasmic staining for P501S, although it was unclear whether it was specific granular staining that defines true positivity. However, Sertoli cell tumors do not typically pose a diagnostic dilemma with metastatic prostate carcinoma to the testis. In contrast, malignant Leydig cell tumors, which are exceedingly rare, can closely resemble Gleason score 5 + 5 = 10 prostatic adenocarcinoma metastatic to the testis.</p><p><strong>Objective.—: </strong>To evaluate the expression of prostate markers in malignant Leydig cell tumors and steroidogenic factor 1 (SF-1) in high-grade prostate adenocarcinoma, as no data are currently published on these topics.</p><p><strong>Design.—: </strong>Fifteen cases of malignant Leydig cell tumor were collected from 2 large genitourinary pathology consult services in the United States from 1991 to 2019.</p><p><strong>Results.—: </strong>All 15 cases were negative immunohistochemically for NKX3.1, and all 9 with available additional material were negative for prostate-specific antigen and P501S and positive for SF-1. SF-1 was negative immunohistochemically in a tissue microarray with cases of high-grade prostatic adenocarcinoma.</p><p><strong>Conclusions.—: </strong>The diagnosis of malignant Leydig cell tumor and its distinction from metastatic adenocarcinoma to the testis can be made immunohistochemically on the basis of SF-1 positivity and negativity for NKX3.1.</p>","PeriodicalId":8305,"journal":{"name":"Archives of pathology & laboratory medicine","volume":" ","pages":"1458-1460"},"PeriodicalIF":4.6,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10861177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Current Approach to Undifferentiated Neoplasms, With Focus on New Developments and Novel Immunohistochemical Stains. 目前未分化肿瘤的治疗方法,重点是新的进展和新的免疫组织化学染色。
IF 4.6 3区 医学
Archives of pathology & laboratory medicine Pub Date : 2023-12-01 DOI: 10.5858/arpa.2022-0459-RA
William R Borch, Sara E Monaco
{"title":"Current Approach to Undifferentiated Neoplasms, With Focus on New Developments and Novel Immunohistochemical Stains.","authors":"William R Borch, Sara E Monaco","doi":"10.5858/arpa.2022-0459-RA","DOIUrl":"10.5858/arpa.2022-0459-RA","url":null,"abstract":"<p><strong>Context.—: </strong>Workup of the poorly differentiated or undifferentiated tumor remains a significant and challenging entity in the practice of anatomic pathology. Particularly in the setting of small biopsies and limited material, these cases demand a balanced approach that considers the patient's clinical and radiologic presentation, a basic assessment of tumor morphology, a reasonably broad immunohistochemical panel, and diligent preservation of tissue for prognostic and therapeutic studies.</p><p><strong>Objective.—: </strong>To illustrate some of the new and emerging immunohistochemical markers in the evaluation of tumors with undifferentiated or poorly differentiated morphology, with a focus on the workup in limited tissue samples to raise awareness of the issues involved with the pathologic workup in these challenging tumors.</p><p><strong>Data sources.—: </strong>A literature review of new ancillary studies that can be applied to cytologic specimens was performed.</p><p><strong>Conclusions.—: </strong>Knowledge of the patient's history and communication with the patient's clinical team is essential in formulating a differential diagnosis that can appropriately limit the differential diagnosis based on morphology, especially in small specimens. This information, in conjunction with classifying the tumor morphology (eg, epithelioid, spindled, neuroendocrine, basaloid/biphasic, mixed) gives a logical approach to choosing an initial immunohistochemical panel. Fortunately, immunohistochemistry is evolving quickly in the wake of groundbreaking molecular studies to develop new and better markers to further classify these difficult tumors beyond where we traditionally have been able to go.</p>","PeriodicalId":8305,"journal":{"name":"Archives of pathology & laboratory medicine","volume":" ","pages":"1364-1373"},"PeriodicalIF":4.6,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9145565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance Assessment of a Novel Multianalyte Methodology for Celiac Disease Biomarker Detection and Evaluation of the Serology-Alone Criteria for Biopsy-Free Diagnosis. 乳糜泻生物标志物检测的一种新型多分析方法的性能评估和对无活检诊断的血清学单独标准的评估。
IF 4.6 3区 医学
Archives of pathology & laboratory medicine Pub Date : 2023-12-01 DOI: 10.5858/arpa.2022-0385-OA
Camille Leite Novis, Edward Wahl, Eric Camacho, Mary Ann Aure, Michael Mahler, Vijayalakshmi Nandakumar
{"title":"Performance Assessment of a Novel Multianalyte Methodology for Celiac Disease Biomarker Detection and Evaluation of the Serology-Alone Criteria for Biopsy-Free Diagnosis.","authors":"Camille Leite Novis, Edward Wahl, Eric Camacho, Mary Ann Aure, Michael Mahler, Vijayalakshmi Nandakumar","doi":"10.5858/arpa.2022-0385-OA","DOIUrl":"10.5858/arpa.2022-0385-OA","url":null,"abstract":"<p><strong>Context.—: </strong>Serology plays a vital role in celiac disease (CD) diagnosis, and the latest European guidelines advocate for biopsy-free diagnoses in patients with ≥10× the upper limit of normal (ULN) of anti-tissue transglutaminase (tTG) immunoglobulin A (IgA) antibodies.</p><p><strong>Objective.—: </strong>To assess performance characteristics of a novel automated particle-based multianalyte technology (Aptiva) for anti-tTG and anti-deamidated gliadin peptide (DGP) antibody detection as compared to the traditional enzyme-linked immunosorbent assay (QUANTA Lite). Performance characteristics of the ≥10× ULN anti-tTG IgA criteria for serologic diagnosis of CD were also evaluated.</p><p><strong>Design.—: </strong>Sera samples from 703 patients were tested for anti-tTG IgA, anti-tTG immunoglobulin G (IgG), anti-DGP IgA, and anti-DGP IgG antibodies on both platforms. In total, 127 patients had medical information and were classified as CD-positive (n = 58) and CD-negative (n = 69) based on biopsy results. Clinical performance characteristics were evaluated.</p><p><strong>Results.—: </strong>Anti-tTG IgA detection showed equal clinical sensitivity and specificity of 91% sensitivity and 99% specificity on both platforms. Anti-tTG IgG resulted in moderate sensitivity of 69% and 72%, but high specificity of 100% and 94% on Aptiva and QUANTA Lite, respectively. Anti-DGP IgG displayed comparable sensitivity of 90% and 81%, and a specificity of 94% and 99%, on Aptiva and QUANTA Lite, respectively. Anti-DGP IgA demonstrated greater sensitivity on QUANTA Lite (83%) than Aptiva (69%) and similar specificities of 97% and 98% on QUANTA Lite and Aptiva, respectively. At ≥10× ULN levels for anti-tTG IgA, Aptiva displayed a sensitivity of 72% and a specificity of 100%, and QUANTA Lite showed a sensitivity of 69% and a specificity of 100%.</p><p><strong>Conclusions.—: </strong>Aptiva is a reliable method to measure CD biomarkers with reduced hands-on necessity and high-throughput capabilities. This study supports the use of a ≥10× ULN anti-tTG IgA biopsy-free approach for serologic diagnosis of CD.</p>","PeriodicalId":8305,"journal":{"name":"Archives of pathology & laboratory medicine","volume":" ","pages":"1422-1430"},"PeriodicalIF":4.6,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10862565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Graph Convolutional Neural Networks for Histologic Classification of Pancreatic Cancer. 图形卷积神经网络在癌症组织学分类中的应用。
IF 4.6 3区 医学
Archives of pathology & laboratory medicine Pub Date : 2023-11-01 DOI: 10.5858/arpa.2022-0035-OA
Weiyi Wu, Xiaoying Liu, Robert B Hamilton, Arief A Suriawinata, Saeed Hassanpour
{"title":"Graph Convolutional Neural Networks for Histologic Classification of Pancreatic Cancer.","authors":"Weiyi Wu, Xiaoying Liu, Robert B Hamilton, Arief A Suriawinata, Saeed Hassanpour","doi":"10.5858/arpa.2022-0035-OA","DOIUrl":"10.5858/arpa.2022-0035-OA","url":null,"abstract":"<p><strong>Context.—: </strong>Pancreatic ductal adenocarcinoma has some of the worst prognostic outcomes among various cancer types. Detection of histologic patterns of pancreatic tumors is essential to predict prognosis and decide the treatment for patients. This histologic classification can have a large degree of variability even among expert pathologists.</p><p><strong>Objective.—: </strong>To detect aggressive adenocarcinoma and less aggressive pancreatic tumors from nonneoplasm cases using a graph convolutional network-based deep learning model.</p><p><strong>Design.—: </strong>Our model uses a convolutional neural network to extract detailed information from every small region in a whole slide image. Then, we use a graph architecture to aggregate the extracted features from these regions and their positional information to capture the whole slide-level structure and make the final prediction.</p><p><strong>Results.—: </strong>We evaluated our model on an independent test set and achieved an F1 score of 0.85 for detecting neoplastic cells and ductal adenocarcinoma, significantly outperforming other baseline methods.</p><p><strong>Conclusions.—: </strong>If validated in prospective studies, this approach has a great potential to assist pathologists in identifying adenocarcinoma and other types of pancreatic tumors in clinical settings.</p>","PeriodicalId":8305,"journal":{"name":"Archives of pathology & laboratory medicine","volume":" ","pages":"1251-1260"},"PeriodicalIF":4.6,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10356903/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10217391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immunohistochemistry Should Be Regulated as an Assay. 免疫组织化学应作为一种检测手段加以调节。
IF 3.2 3区 医学
Archives of pathology & laboratory medicine Pub Date : 2023-11-01 DOI: 10.5858/arpa.2023-0048-ED
Barbarajean Magnani, Clive R Taylor
{"title":"Immunohistochemistry Should Be Regulated as an Assay.","authors":"Barbarajean Magnani, Clive R Taylor","doi":"10.5858/arpa.2023-0048-ED","DOIUrl":"10.5858/arpa.2023-0048-ED","url":null,"abstract":"","PeriodicalId":8305,"journal":{"name":"Archives of pathology & laboratory medicine","volume":" ","pages":"1229-1231"},"PeriodicalIF":3.2,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9925225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nondestructive 3D Pathology Image Atlas of Barrett Esophagus With Open-Top Light-Sheet Microscopy. 采用开顶光片显微镜的Barrett食管无损三维病理学图像图谱。
IF 4.6 3区 医学
Archives of pathology & laboratory medicine Pub Date : 2023-10-01 DOI: 10.5858/arpa.2022-0133-OA
Deepti M Reddi, Lindsey A Barner, Wynn Burke, Gan Gao, William M Grady, Jonathan T C Liu
{"title":"Nondestructive 3D Pathology Image Atlas of Barrett Esophagus With Open-Top Light-Sheet Microscopy.","authors":"Deepti M Reddi,&nbsp;Lindsey A Barner,&nbsp;Wynn Burke,&nbsp;Gan Gao,&nbsp;William M Grady,&nbsp;Jonathan T C Liu","doi":"10.5858/arpa.2022-0133-OA","DOIUrl":"10.5858/arpa.2022-0133-OA","url":null,"abstract":"<p><strong>Context.—: </strong>Anatomic pathologists render diagnosis on tissue samples sectioned onto glass slides and viewed under a bright-field microscope. This approach is destructive to the sample, which can limit its use for ancillary assays that can inform patient management. Furthermore, the subjective interpretation of a relatively small number of 2D tissue sections per sample contributes to low interobserver agreement among pathologists for the assessment (diagnosis and grading) of various lesions.</p><p><strong>Objective.—: </strong>To evaluate 3D pathology data sets of thick formalin-fixed Barrett esophagus specimens imaged nondestructively with open-top light-sheet (OTLS) microscopy.</p><p><strong>Design.—: </strong>Formalin-fixed, paraffin-embedded Barrett esophagus samples (N = 15) were deparaffinized, stained with a fluorescent analog of hematoxylin-eosin, optically cleared, and imaged nondestructively with OTLS microscopy. The OTLS microscopy images were subsequently compared with archived hematoxylin-eosin histology sections from each sample.</p><p><strong>Results.—: </strong>Barrett esophagus samples, both small endoscopic forceps biopsies and endoscopic mucosal resections, exhibited similar resolvable structures between OTLS microscopy and conventional light microscopy with up to a ×20 objective (×200 overall magnification). The 3D histologic images generated by OTLS microscopy can enable improved discrimination of cribriform and well-formed gland morphologies. In addition, a much larger amount of tissue is visualized with OTLS microscopy, which enables improved assessment of clinical specimens exhibiting high spatial heterogeneity.</p><p><strong>Conclusions.—: </strong>In esophageal specimens, OTLS microscopy can generate images comparable in quality to conventional light microscopy, with the advantages of providing 3D information for enhanced evaluation of glandular morphologies and enabling much more of the tissue specimen to be visualized nondestructively.</p>","PeriodicalId":8305,"journal":{"name":"Archives of pathology & laboratory medicine","volume":" ","pages":"1164-1171"},"PeriodicalIF":4.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10533193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Paratesticular Extramedullary Hematopoiesis in Children. 儿童睾丸旁髓质外造血。
IF 4.6 3区 医学
Archives of pathology & laboratory medicine Pub Date : 2023-10-01 DOI: 10.5858/arpa.2022-0135-OA
Elisabetta Kuhn, Letterio Runza, Antonio Di Cesare, Umberto Gianelli
{"title":"Paratesticular Extramedullary Hematopoiesis in Children.","authors":"Elisabetta Kuhn,&nbsp;Letterio Runza,&nbsp;Antonio Di Cesare,&nbsp;Umberto Gianelli","doi":"10.5858/arpa.2022-0135-OA","DOIUrl":"10.5858/arpa.2022-0135-OA","url":null,"abstract":"<p><strong>Context.—: </strong>Extramedullary hematopoiesis (EMH) is an uncommon occurrence, usually associated with hematologic disorders, but it rarely presents as an isolated finding.</p><p><strong>Objective.—: </strong>To determine the frequency, immunomorphologic features, and clinicopathologic background of EMH in orchiectomies from pediatric patients.</p><p><strong>Design.—: </strong>All orchiectomy specimens removed from children from 2008 to 2020 in our institution were retrospectively reviewed. Biopsies and neoplasias were excluded. The EMH diagnosis was rendered when hematopoietic cell precursors were present. Immunohistochemical stainings were performed to characterize the hematopoietic components.</p><p><strong>Results.—: </strong>Seventy-nine orchiectomies from 77 children (mean age, 5 years; range, 0-17 years) were included in our study. Forty-three patients (55.8%) underwent surgery for testicular atrophy, 30 (39.0%) for torsion, and 4 (5.2%) for intersex conditions. EMH was identified in 6 of 79 orchiectomies (7.6%), all performed for testicular torsion. All patients but one were newborns, and the remaining patient was 15 years old. No patient had evidence of a hematologic disorder. All EMH foci were in a background of reactive changes with a variable extension, either in the epididymis (4 cases) or in the deferens duct (2 cases). Immunostaining confirmed an association of myeloid (myeloperoxidase+) and erythroid precursors (E-cadherin+) in all 6 cases. One case also presented rare megakaryocytes, and one showed benign TdT+ B-cell precursors.</p><p><strong>Conclusions.—: </strong>To our knowledge, this is the first study that demonstrates EMH as a common finding in orchiectomy samples, especially from newborns. Despite the lack of pathologic potential, it is important to recognize EMH in order to avoid misdiagnosis.</p>","PeriodicalId":8305,"journal":{"name":"Archives of pathology & laboratory medicine","volume":" ","pages":"1172-1177"},"PeriodicalIF":4.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10533194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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