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Annals of Diagnostic Pathology

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https://www.readbyqxmd.com/read/30419426/well-differentiated-papillary-mesothelioma-a-17-year-single-institution-experience-with-a-series-of-75-cases
#1
Meng Sun, Lu Zhao, I Weng Lao, Lin Yu, Jian Wang
We present our experience with 75 cases of well-differentiated papillary mesothelioma (WDPM) that were diagnosed at our institution between 2000 and 2017. The patients included 58 females and 17 males with age ranging from 18 to 69 years (mean, 42 years). Clinically, the vast majority of WDPMs were incidental findings during laparotomy or laparoscopic surgery for a variety of benign or malignant disease. The lesion manifested as either a small solitary nodule or multiple miliary nodules on the peritoneum or serosal surfaces of internal organs...
October 28, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30388432/localization-of-tnf-alpha-in-ileocolonic-biopsies-of-patients-with-inflammatory-bowel-disease
#2
Vincenzo Villanacci, Moris Cadei, Francesco Lanzarotto, Chiara Ricci, Elisabetta Antonelli, Rosanna Cannatelli, Tiziana Gulotta, Lucia Fontana, Valentina Pasquali, Sandra Sigala, Tiziana Salviato, Riccardo Nascimbeni, Gabrio Bassotti
BACKGROUND: Although antitumor necrosis factor alfa (TNFα) agents are widely used to treat patients with inflammatory bowel diseases (IBD) - both Crohn's disease (CD) and ulcerative colitis (UC) - there is still some uncertainty in the cell type expressing TNFα in human ileo-colonic segments. AIMS: We investigated the immunohistochemical (IHC) expression of TNFα in the ileo-colonic segments of patients with both active CD and UC, to establish its anatomic and cellular localization in the inflamed sites...
October 27, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30380400/fto-mrna-expression-in-the-lower-quartile-is-associated-with-bad-prognosis-in-clear-cell-renal-cell-carcinoma-based-on-tcga-data-mining
#3
Lijie Wen, Yang Yu, Hang Lv, Yi He, Bo Yang
Fat mass and obesity associated (FTO) is a protein-coding gene, also known as the obesity gene. It has been reported previously to be associated with a variety of malignant cancers, such as breast, thyroid and acute myeloid leukemia. The aim of the present study was to investigate the FTO mRNA expression in human clear cell renal cell carcinoma and its clinical value. FTO mRNA expression and its prognostic value were investigated by bioinformatic analysis of the data from The Cancer Genome Atlas (TCGA, https://cancergenome...
October 25, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30415111/virus-associated-carcinomas-of-the-head-neck-update-from-the-2017-who-classification
#4
REVIEW
Brittany J Holmes, Bruce M Wenig
Virus-associated carcinomas of the head and neck represent an unusual confluence of infections spread by viral transmission and cellular dysregulation resulting in carcinogenesis. While much remains to be elucidated about the exact progression from infection to cancer, a basic framework of viral biology can complement the pathologist's understanding of morphology. This context informs the pathologist's everyday practice, including selecting ancillary studies, communicating prognostically relevant findings, and participating in treatment planning...
October 22, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30419427/thyroid-tumors-with-follicular-architecture
#5
REVIEW
Andrew T Turk, Bruce M Wenig
Thyroid tumors with follicular architecture encompass a considerable array of distinct entities. These lesions share significant morphologic overlap, but portend different prognostic and therapeutic implications. Due to their similar growth patterns, distinction between these tumors can be difficult; remarkable interobserver variability exists, even between expert endocrine pathologists. Given the diagnostic challenges associated with these lesions, establishment of the correct diagnosis requires adequate gross examination protocol, careful attention to morphologic features and pathologic context, as well as-increasingly-adjunct molecular findings...
October 18, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30390534/the-impact-of-reporting-tumor-size-in-breast-core-needle-biopsies-on-tumor-stage-a-retrospective-review-of-five-years-of-experience-at-a-single-institution
#6
Sarah Alghamdi, Sabrina Oneto, Anthony Tuzzolo, Odille Mejia, Christopher A Febres-Aldana, Robert J Poppiti, Cristina Vincentelli
No abstract text is available yet for this article.
October 13, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30340082/subclassification-of-pleomorphic-sarcomas-how-and-why-should-we-care
#7
REVIEW
Jason L Hornick
Pleomorphic sarcomas are a heterogeneous group of mesenchymal neoplasms with widely varied clinical behavior but overlapping histologic appearances. The following guidelines are helpful when approaching the diagnosis of a pleomorphic sarcoma. (1) Be aware of the relative incidence of the various sarcoma types: several pleomorphic sarcomas are relatively common (e.g., dedifferentiated liposarcoma and undifferentiated pleomorphic sarcoma), whereas others are exceptionally rare. (2) Pay attention to anatomic location: some pleomorphic sarcomas have a predilection for somatic soft tissues, especially the thigh (e...
October 11, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30419428/gene-and-protein-expression-of-e-cadherin-and-ncam-markers-in-non-functioning-pituitary-adenomas
#8
Bárbara Roberta Ongaratti, Taiana Haag, Marícia Fantinel D'Ávila, Geraldine Trott, Nelson Pires Ferreira, Carolina Garcia Soares Leães Rech, Júlia Fernanda Semmelmman Pereira-Lima, Miriam da Costa Oliveira
Non-functioning pituitary adenomas (NFPA) are classified as benign tumors of slow growth, but 40% of them present local invasion, a characteristic of behavior still unpredictable with the use of current tumor markers. This work aims to evaluate the tissue markers E-cadherin and NCAM, which act on cell adhesion, in tumor tissue samples of NFPA and its relationship with the degree of local invasiveness. Gene expression of E-cadherin (CDH1) and NCAM (NCAM1) was assessed by real-time PCR and tissue expression by immunohistochemistry...
October 9, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30317149/intestinal-t-cell-and-nk-t-cell-lymphomas-a-clinicopathological-study-of-27-chinese-patients
#9
Xue-Feng Tang, Li Yang, Song Duan, Hong Guo, Qiao-Nan Guo
BACKGROUND: Intestinal T-cell and NK/T- cell lymphomas are rare and aggressive. The diagnosis is quite difficult, especial in biopsy specimens. This study investigates the clinicopathological features of intestinal T-cell and NK/T-cell lymphomas to aid their differential diagnosis. METHODS: Clinical data of 27 cases were collected. Including extranodal NK/T-cell lymphoma, nasal type (ENKTCL-N), monomorphic epitheliotropic intestinal T-cell lymphoma (MEITL), peripheral T-cell lymphoma, not otherwise specified (PTCL, NOS), anaplastic large-cell lymphoma, ALK+ (ALCL, ALK+) and angioimmunoblastic T-cell lymphoma (AITL)...
October 9, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30316045/primary-mediastinal-melanotic-schwannian-tumors-a-clinicopathological-and-immunohistochemical-study-of-5-cases
#10
REVIEW
Kaleigh Lindholm, Cesar A Moran
Mediastinal neurogenic tumors are unusual and more so is the presence of melanotic neurogenic tumors. We present five cases of mediastinal melanotic neurogenic tumors. The patients are five men between the ages of 34 and 43 years (average: 38.5 years). All patients presented with non-specific symptoms that included back pain and cough. Diagnostic imaging revealed the presence of a posterior mediastinal mass without connection to the spinal canal, and surgical resection was accomplished in all of the patients...
October 3, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30380402/aggressive-b-cell-lymphomas-in-the-2017-revised-who-classification-of-tumors-of-hematopoietic-and-lymphoid-tissues
#11
REVIEW
Kate E Grimm, Dennis P O'Malley
The recent 2017 update of the World Health Organization classification of lymphomas has significant changes from the previous edition. Subtypes of large B cell lymphoma and related aggressive B cell lymphomas are addressed. Clinicopathological features of entities as related to morphology, immunophenotype, cell of origin, and molecular/genetic findings are reviewed with emphasis on changes or updates in findings. Specific subtypes addressed include: T cell/histiocyte-rich large B cell lymphoma, primary diffuse large B cell lymphoma (DLBCL) of the CNS, primary cutaneous DLBCL leg-type, EBV-positive DLBCL, NOS, DLBCL associated with chronic inflammation, primary mediastinal large B cell lymphoma, intravascular large B cell lymphoma, ALK-positive large B cell lymphoma, plasmablastic lymphoma, primary effusion lymphoma, HHV8-positive diffuse large B-cell lymphoma, NOS, Burkitt lymphoma, Burkitt-like lymphoma with 11q aberration, high-grade B cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements, high grade B cell lymphoma, NOS, B cell lymphoma, unclassifiable, with features intermediate between DLBCL and classic Hodgkin lymphoma and large B cell lymphoma with IRF4 translocation...
October 2, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30312881/some-observations-on-barrett-esophagus-and-associated-dysplasia
#12
REVIEW
Elizabeth Montgomery, Christina A Arnold, Dora Lam-Himlin, Kevan Salimian, Kevin Waters
Biopsy samples from esophageal columnar metaplasia and dysplasia are commonly encountered in Western pathology practice and knowing a few pitfalls can save both pathologists and patients a great deal of anxiety. Herein we discuss criteria for Barrett esophagus, evaluation of dysplasia, and some pitfalls in reviewing endoscopic mucosal resections. Also included is a summary of suggested follow-up for patients with Barrett esophagus.
September 28, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30312883/melanocytic-lesions-staying-out-of-trouble
#13
REVIEW
Thomas Brenn
The diagnosis of melanocytic tumors is notoriously difficult and represents one of the most challenging areas in surgical pathology associated with significant risk for litigation. One reason is the wide morphologic spectrum of melanocytic tumors and the fact that many histological features are shared by both benign melanocytic nevi and melanoma. Awareness of the many morphologic variations and variants of nevi and melanoma, their clinical setting, immunohistochemical phenotype and genetic profile is necessary for the correct diagnosis...
September 27, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30312882/nonalcoholic-fatty-liver-disease-nafld-diagnosis-pitfalls-and-staging
#14
REVIEW
Lisa K Koch, Matthew M Yeh
Nonalcoholic fatty liver disease (NAFLD) is increasingly prevalent and strongly associated with obesity, diabetes and the metabolic syndrome, not only in the Western societies, but also in most regions of the world in the 21st century. The spectrum of its histopathology ranges from steatosis to nonalcoholic steatohepatitis (NASH), with risk for progressive fibrosis that may lead to cirrhosis and hepatocellular carcinoma (HCC). Benign and malignant liver tumors have also been more frequently reported with the increasing prevalence of obesity and diabetes...
September 27, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30308438/diagnostically-relevant-updates-to-the-2017-who-classification-of-lymphoid-neoplasms
#15
REVIEW
Sarah M Choi, Dennis P O'Malley
The recent 2017 WHO Classification of Tumours of Haematopoietic and Lymphoid Tissues contains a number of updates under the category of lymphoid neoplasms. These changes include introduction of new entities, amended classification or terminology, and addition of newly discovered diagnostic and molecular features. In this review, we perform a focused, concise summary of selected lymphoid neoplasms and discuss changes in their classification. Rather than a comprehensive overview, we place specific emphasis on important and diagnostically relevant aspects of each entity that are novel or different from the previous WHO iteration and bring the practicing pathologist quickly up to speed with the updated classification...
September 27, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30380401/mimickers-of-urothelial-neoplasia
#16
REVIEW
Oleksandr N Kryvenko, Jonathan I Epstein
Management of malignant urothelial tumors is often associated with extended costly treatments, some with significant morbidity. Advanced tumors are treated with radical cystectomy with neoadjuvant or adjuvant radiation or chemotherapy. Over and under interpretation of histological findings from biopsies and transurethral resections of urothelial lesions may either incur treatments with significant side effects or miss a possible window of cure, respectively. Herein we reflect our approaches and common diagnostic challenges of urothelial tumors and their mimickers, and highlight the diagnostic pitfalls and key histological and immunohistochemical differentiating features...
September 26, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30266536/immunohistochemical-stains-to-detect-residual-tumor-in-cystectomy-specimens-taken-shortly-after-transurethral-resection-of-bladder-tumors
#17
LETTER
Valeria Barresi, Carmela Mirella Nunnari, Simona Lionti
No abstract text is available yet for this article.
September 21, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30241033/laryngeal-sarcomas-a-case-series-of-5-cases
#18
Badr AbdullGaffar, Tasnim Keloth
Primary sarcomas of the larynx are rare and miscellaneous. The most common is chondrosarcoma. Other sarcomas are very rare. Sarcomas can have heterogeneous morphologic features of spindle, small round, epithelioid, pleomorphic and giant cells. Laryngeal sarcomas may mimic carcinomas, lymphomas, small cell carcinoma, mesothelioma and melanoma. This imposes diagnostic challenges for unfamiliar pathologists particularly in small laryngeal biopsies. Our aim was to study the different types of sarcomas that can involve the larynx in our institution, to investigate their diagnostic challenges and potential pitfalls and to find helpful histologic clues to avoid misinterpretation and missed diagnosis...
September 14, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30236546/the-expression-of-ttf1-cdx2-and-isl1-in-74-poorly-differentiated-neuroendocrine-carcinomas
#19
Hwajeong Lee, Zhiyan Fu, Brandon H Koo, Christine E Sheehan, Gloria Q Young, Jingmei Lin, Deepa T Patil, Zhaohai Yang
BACKGROUND: The expression profile of immunohistochemical markers of origin in poorly differentiated neuroendocrine carcinoma (PDNEC) is not well studied. MATERIALS AND METHODS: Seventy-four PDNECs from gastroenteropancreatic (GEP) organs and the lung, including 48 large cell NEC (LCNEC) and 26 small cell carcinomas (SmCC), were subject to immunohistochemical staining for CDX2, TTF1 and ISL1. The staining intensity (1 to 3) and percentage of positive tumor cells [0 (negative), 1 (<50%) and 2 (≥50%)] were assessed...
September 13, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30292067/pediatric-oral-epstein-barr-virus-associated-self-remitting-cd30-lymphoproliferative-disorder-a-distinct-entity
#20
Ziv Schwartz, Robert B Bowe, Morton Coleman, Cynthia M Magro
Epstein-Barr virus (EBV) has a well-known association with lymphoproliferative disorders of B and T cell origin. EBV-related B cell lymphoproliferative disorders include Hodgkin and Burkitt lymphomas, lymphomatoid granulomatosis, EBV positive diffuse large cell B cell lymphoma of the elderly, as well as B cell lymphomas associated with solid organ transplantation and methotrexate use. EBV-related T cell disorders are primarily represented by NK/T- cell lymphoma. In a subset of patients, EBV has been implicated in CD30 positive B cell lymphoproliferative disorders of the oral mucosa falling under the rubric of the mucocutaneous ulcer of the oral cavity...
September 12, 2018: Annals of Diagnostic Pathology
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