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Annals of Diagnostic Pathology

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https://www.readbyqxmd.com/read/29747061/serrated-epithelial-colorectal-polyps-hyperplastic-polyps-sessile-serrated-adenomas-with-perineurial-stroma-clinicopathological-and-molecular-analysis-of-a-new-series
#1
Katharina Erlenbach-Wünsch, Michel Bihl, Arndt Hartmann, Gabriel M Groisman, Michael Vieth, Abbas Agaimy
Serrated colorectal fibroblastic polyps (FPs) are rare benign mucosal lesions composed of serrated epithelial crypts separated and distorted by intimately associated bland spindle cell proliferations with perineurial-like phenotype. We herein describe 21 new FPs affecting 10 females and 9 males aged 45 to 80 yrs. (mean, 62 yrs). Lesions originated in the sigmoid colon/rectosigmoid junction (n = 16), rectum (n = 2), and other parts of the colon (n = 3). Most patients had additional synchronous or metachronous polyps: classical adenomas (12 patients), sessile serrated adenoma/SSA (1 patient), hyperplastic polyps/HPs (7 patients), both HPs and adenomas (6 patients) and colorectal cancer (2 patients)...
May 4, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29748062/immunohistochemical-expression-of-glypican-3-in-adrenocortical-carcinoma-a-potential-cause-of-diagnostic-pitfalls
#2
LETTER
Simona Lionti, Antonio Ieni, Salvatore Cannavò, Valeria Barresi
No abstract text is available yet for this article.
May 3, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29705714/multifocal-occurrence-of-extra-abdominal-desmoid-type-fibromatosis-a-rare-manifestation-a-clinicopathological-study-of-6-sporadic-cases-and-1-hereditary-case
#3
Elise M Bekers, Danique L M van Broekhoven, Thijs van Dalen, Johan J Bonenkamp, Ingrid C M van der Geest, Jacky W J de Rooy, Joost M van Gorp, David H Creytens, Wendy W J de Leng, Blanca Scheijen, Astrid Eijkelenboom, Uta Flucke
Desmoid-type fibromatosis, also called desmoid tumor, is a locally aggressive myofibroblastic neoplasm that usually arises in deep soft tissue with significant potential for local recurrence. It displays an unpredictable clinical course. β-Catenin, the genetic key player of desmoid tumors shows nuclear accumulation due to mutations that prevent its degradation leading to activation of Wnt signaling and myofibroblastic cell proliferation. The corresponding hot spot mutations are located in exon 3 of the CTNNB1 gene or alternatively, in the APC tumor suppressor gene, most often as a germline mutation...
April 21, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29705715/solid-pseudopapillary-neoplasm-spn-of-the-testis-comprehensive-mutational-analysis-of-6-testicular-and-8-pancreatic-spns
#4
Kvetoslava Michalova, Michael Michal, Monika Sedivcova, Dmitry V Kazakov, Carlos Bacchi, Tatjana Antic, Marketa Miesbauerova, Ondrej Hes, Michal Michal
BACKGROUND: Recently, we came with the theory of a possible relationship between a group of testicular and pancreatic tumors. We used one case of a pancreatic analogue solid pseudopapillary neoplasm of the testis composed partially of areas reminiscent of solid pseudopapillary neoplasm (SPN) of the pancreas and partially of structures identical to primary signet ring stromal tumor of the testis (PSRSTT) as a connecting link between these two entities. After demonstrating that PSRSTT and pancreatic analogue SPN of the testis share the same immunoprofile and genetic features characteristic for pancreatic SPN, we came to the conclusion that pancreatic analogue SPN of the testis and PSRSTT represent a morphological spectrum of a single entity and that both are related to the pancreatic SPN...
April 20, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29689463/submandibular-gland-pleomorphic-adenoma-histopathological-capsular-characteristics-and-correlation-with-the-surgical-outcome
#5
Konstantinos Mantsopoulos, Miguel Goncalves, Michael Koch, Heinrich Iro, Abbas Agaimy
Pleomorphic adenoma (PA) of the submandibular gland is known to have a very low recurrence rate. The aim of this study was to investigate the histopathological and capsular characteristics of submandibular gland PA, looking for any differences between submandibular PA and the reported data for PA of the parotid gland as possible explanation for its low recurrence rate. We reviewed 72 submandibular gland PAs resected at our center between 2000 and 2016. Patient age ranged from 14 to 77 years (mean, 47.2). At least follow (range, 12 to 170 months; mean, 82), none of the 72 patients developed a local recurrence...
April 18, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29660566/extrapleural-solitary-fibrous-tumor-a-distinct-entity-from-pleural-solitary-fibrous-tumor-an-update-on-clinical-molecular-and-diagnostic-features
#6
REVIEW
Andrea Ronchi, Immacolata Cozzolino, Federica Zito Marino, Marina Accardo, Marco Montella, Iacopo Panarese, Giuseppe Roccuzzo, Giorgio Toni, Renato Franco, Annarosaria De Chiara
Solitary fibrous tumor (SFT) is a mesenchymal neoplasm that was originally described to be localized in the pleura, but thereafter, this has been reported in several anatomic sites. Although the etiology of the neoplasm remains largely unknown, the pathogenesis seems to be related to an NAB2-STAT6 fusion gene due to paracentric inversion on chromosome 12q13. The diagnosis of extrapleural SFT is challenging, owing to its rarity, and requires an integrated approach that includes specific clinical, histological, immunohistochemical, and even molecular findings...
April 9, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29715580/expression-of-p27-and-c-myc-by-immunohistochemistry-in-breast-ductal-cancers-in-african-american-women
#7
Farhan Khan, Luisel J Ricks-Santi, Rabia Zafar, Yasmine Kanaan, Tammey Naab
OBJECTIVES: Proteins p27 and c-Myc are both key players in the cell cycle. While p27, a tumor suppressor, inhibits progression from G1 to S phase, c-Myc, a proto-oncogene, plays a key role in cell cycle regulation and apoptosis. The objective of our study was to determine the association between expression of c-Myc and the loss of p27 by immunohistochemistry (IHC) in the four major subtypes of breast cancer (BC) (Luminal A, Luminal B, HER2, and Triple Negative) and with other clinicopathological factors in a population of 202 African-American (AA) women...
April 5, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661720/pd-l1-immuno-expression-assay-in-thymomas-study-of-84-cases-and-review-of-literature
#8
Prerna Guleria, Nuzhat Husain, Saumya Shukla, Sunil Kumar, Rajinder Parshad, Deepali Jain
BACKGROUND AND AIMS: Programmed death ligand 1 (PD-L1), an immune check point inhibitor, is known to be expressed in several malignancies and is being considered as a prognostic factor and a potential immunotherapeutic target. The aim of this study was to characterize PD-L1 expression in thymomas and to determine correlation with clinicopathological features and previously published studies in the literature. METHODS: Tissue microarrays were prepared from selected blocks of thymomas and immunohistochemistry (IHC) for PD-L1 was performed...
April 4, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661719/rectal-ulcer-and-pseudomalignant-epithelial-changes-after-prostate-seed-brachytherapy-a-rare-complication-with-a-diagnostic-pitfall
#9
Hwajeong Lee, Natallia Sheuka, Osama El-Kadi, Brian P Murray, Hugh A Fisher, Bhaskar V S Kallakury, Edward C Lee, Ann Boguniewicz, Timothy A Jennings
BACKGROUND: Implant brachytherapy (IBT) is a well-recognized treatment modality for early stage prostate cancer. Rectal ulcer and rectourethral fistula complicating IBT may cause an alteration of the normal anatomic landmarks. In this context, pseudomalignant radiation-induced changes within prostatic epithelium may be misinterpreted as a primary rectal malignancy. Such challenging and misleading findings have not been described, and may not be recognized as such. MATERIALS AND METHODS: We present the clinical and pathologic aspects of two patients who underwent IBT for low stage prostate cancer that was complicated by deep rectal ulcer...
April 4, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661717/primary-breast-carcinomas-with-neuroendocrine-features-clinicopathological-features-and-analysis-of-tumor-growth-patterns-in-36-cases
#10
Canan Kelten Talu, Cem Leblebici, Tulin Kilicaslan Ozturk, Ezgi Hacihasanoglu, Sevim Baykal Koca, Zuhal Gucin
Primary breast carcinoma with neuroendocrine features (NEBC) is an uncommon tumor. In the classification of WHO 2012, these tumors were categorized as: 1- neuroendocrine tumor, well-differentiated; 2- neuroendocrine carcinoma, poorly differentiated/small cell carcinoma; and 3- invasive breast carcinoma with neuroendocrine differentiation. In this study, we reviewed NEBC except poorly differentiated/small cell carcinoma variant in order to define the morphological growth patterns and cytonuclear details of these tumors...
April 4, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29660568/interdigitating-dendritic-cell-sarcoma-clinicopathologic-study-of-8-cases-with-review-of-the-literature
#11
REVIEW
Tian Xue, Xiang-Nan Jiang, Wei-Ge Wang, Xiao-Yan Zhou, Xiao-Qiu Li
To investigate the clinicopathologic features and differential diagnoses of interdigitating dendritic cell sarcoma (IDCS), the clinical, morphological and immunohistochemical features of eight cases of IDCS were collected and analyzed. Three patients were males and five were females, the mean age and the median age were 56.5 years and 57 years respectively. Clinically, the majority of cases involved lymph nodes. Microscopically, neoplastic cells were spindle or ovoid, forming fascicles or whorls. Every case had active mitosis figures...
March 30, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661715/expression-and-clinical-significance-of-retinoid-x-receptor-%C3%AE-in-esophageal-carcinoma
#12
Hong-Yue Ren, Yi-He Guo, Li-Min Yang, Tai-Jian Dai, Ming-Zhu Lin, Le Yu, Qi-Gan Zhu, Jia-Rong Meng
PURPOSE: Esophageal carcinoma (EC) is one of the most aggressive type cancers and dysregulation of retinoid X receptor α (RXRα) involves various tumors. However, the relationship of RXRα with the clinicopathological factors of EC, particularly prognostic characteristics, remains unclear. This present study was to evaluate the effect of RXRα expression in the development of EC. METHODS: The mRNA and protein expression level of RXRα in EC and normal esophageal tissues using reverse transcription-polymerase chain reaction (RT-PCR) and Western blot, respectively...
March 28, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661738/overexpression-of-lox-in-triple-negative-breast-cancer
#13
Cornelia Leo, Christine Cotic, Victoria Pomp, Daniel Fink, Zsuzsanna Varga
BACKGROUND: Triple negative breast cancer (TNBC) accounts for approximately 15% of breast cancers. It is associated with a poor prognosis and typically earlier onset of metastasis in comparison with other breast cancer subtypes. Since TNBC lacks the expression of estrogen and progesterone receptors and Her2 status is also negative, there is currently no target that can be used for systemic therapy. Epithelial-mesenchymal transition (EMT) plays an important role in tumor progression and metastasis...
March 27, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661714/microrna-155-up-regulation-in-the-cns-is-strongly-correlated-to-down-s-syndrome-dementia
#14
Esmerina Tili, Louisa Mezache, Jean-Jacques Michaille, Vicky Amann, James Williams, Paige Vandiver, Maria Quinonez, Paolo Fadda, Adel Mikhail, Gerard Nuovo
This study examined the molecular correlates of Down's dementia. qRTPCR for chromosome 21 microRNAs was correlated with in situ hybridization, immunohistochemistry for microRNA targets, mRNAs located on chromosome 21, and neurofibrillary tangles in human and the Ts65 dn mouse Down's model. qRTPCR for the microRNAs on the triplicated chromosome showed miR-155 dominance in brain tissues (14.3 fold increase, human and 24.2 fold increase, mouse model) that co-expressed with hyperphosphorylated tau protein. miR-155 was not elevated in Alzheimer's disease or neonates with Downs' syndrome...
March 26, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661736/loss-of-pd-l1-sp-142-expression-characterizes-renal-vein-tumor-thrombus-microenvironment-in-clear-cell-renal-cell-carcinoma
#15
José I López, Rafael Pulido, Charles H Lawrie, Javier C Angulo
Immunotherapy is a promising tool in the treatment of patients with advancer renal cancer, in particular the blockage of immune checkpoint inhibitors. Clear cell renal cell carcinoma is an example of heterogeneous neoplasm and this particular characteristic is responsible of many therapeutic failures so far. Since variations in the local microenvironment across a tumor may conditionate the effect of this new therapy, a deeper knowledge of this issue seems advisable for any treatment success. We have analyzed the PD-L1 (SP142) expression in three different areas in the tumor and in two areas in the renal vein/caval thrombi in 39 advanced clear cell renal cell carcinomas to determine the extent and potential clinical significance of this regional variability...
March 24, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29660567/summary-of-expression-of-sparc-protein-in-cutaneous-vascular-neoplasms-and-mimickers
#16
Shakuntala H Mauzo, Denái R Milton, Victor G Prieto, Carlos A Torres-Cabala, Wei-Lien Wang, Nitin Chakravarti, Priyadharsini Nagarajan, Michael T Tetzlaff, Jonathan L Curry, Doina Ivan, Robert E Brown, Phyu P Aung
BACKGROUND: Serum protein acidic and rich in cysteine (SPARC) is a matricellular glycoprotein, which regulates cell proliferation and facilitates intracellular transport of albumin bound particles including chemotherapeutic agents such as Nab-paclitaxel/ABI-007. Therefore the presence of SPARC may achieve higher intra-tumoral drug concentration with lower dosage and thus reduce systemic side-effects. Several trials of ABI-007, in melanoma, show promising clinical activity. DESIGN: Fifty-four cases of dermal based neoplasms were retrieved including 24 angiosarcomas (AS), 10 hemangiomas, 9 nodular melanomas, 4 Kaposi sarcomas (KS), 3 leiomyosarcomas (LMS), 3 atypical fibroxanthomas (AFX) and 1 spindle cell squamous cell carcinoma (SSCC)...
March 15, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661734/pathology-resident-perspectives-about-early-autopsy-experiences
#17
REVIEW
Richard A Prayson
The performance of autopsies remains an integral part of residency training in Anatomic Pathology. A number of medical schools no longer require an autopsy experience; therefore, a subset of pathology residents has never seen an autopsy performed prior to commencement of residency training. Although much as been written regarding student's perspectives on their medical school anatomy experiences, practically nothing has been written about resident perspectives on the autopsy experience. Surveys were sent to all Pathology resident trainees (n = 27) in a training program exploring resident perspectives on their early autopsy experiences...
March 14, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661721/high-expression-of-pxdn-is-associated-with-poor-prognosis-and-promotes-proliferation-invasion-as-well-as-migration-in-ovarian-cancer
#18
Ying-Ze Zheng, Lei Liang
BACKGROUND: Peroxidasin (PXDN) is an extracellular matrix protein with peroxidase activity. PXDN has been reported to participate in the processes of epithelial mesenchymal transition. However, the roles of PXDN in progression of cancers are still rare. METHODS: Expression profiles of PXDN in ovarian cancer (OC) tissues were obtained from GEO and TCGA database. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) was performed to measure the expression of PXDN in OC cells...
March 14, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661732/mcm-2-expression-differentiates-potentially-malignant-verrucous-lesions-from-oral-carcinomas
#19
Kochli Channappa Niranjan, Niharika Abhay Sarathy, Devendra Alrani
BACKGROUND: Mcm-2 is a biomarker belonging to Mcm family of proteins which has rarely been used in oral potentially malignant and malignant lesions of the verrucous type. The objective of this study is to assess the expression of Mcm-2 in Normal Oral Mucosa (NM), Verrucous Hyperplasia (VH), Verrucous Carcinoma (VC) and Oral Squamous Cell Carcinoma (OSCC) and compare it with the clinicopathological characteristics. METHODOLOGY: A total of 70 formalin fixed paraffin embedded tissue samples (10 cases of Normal Mucosa NM- Group A, 10 cases of Verrucous Hyperplasia- VH without Dysplasia- Group B, 10 cases of Verrucous Hyperplasia- VH with Dysplasia- Group C, 20 cases of Verrucous Carcinoma VC-Group D, 20 cases of Oral Squamous Cell Carcinoma OSCC- Group E) were subjected to immunohistochemistry with Mcm-2 antibody...
March 13, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661737/a-rapid-triage-protocol-to-optimize-cold-ischemic-time-for-breast-resection-specimens
#20
Ellen G East, Matthew Gabbeart, Emily Roberts, Lili Zhao, Julie M Jorns
Prolonged time from specimen excision to adequate formalin exposure, or cold ischemic time (CIT), negatively impacts estrogen receptor (ER), progesterone receptor (PR) and HER-2 biomarker studies routinely performed on breast specimens. Current guidelines recommend CIT of ≤1 h. Since formalin penetrates resections slowly, optimal fixation requires incision. We evaluated the efficacy of a rapid triage protocol developed to optimize CIT. We identified 2821 specimens: 650 (23.0%) excisional biopsies (EB), 1051 (37...
March 6, 2018: Annals of Diagnostic Pathology
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