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https://www.readbyqxmd.com/read/29904489/intracardiac-extension-of-intravenous-leiomyoma-a-rare-phenomenon-a-case-report
#1
Aileen Peña, Marvin Tamaña
Leiomyoma of uterine origin is a common histologically benign neoplasm in women; however, growth intravenously with intracardiac extension is a rare phenomenon. This is a diagnostic challenge that can present with varied clinical manifestations and multiple differential diagnosis. This is a case of a 45-year-old female patient with chest heaviness and an intracardiac mass on 2-dimensional (2D) echocardiogram. Previous history of hysterectomy was likewise noted. Imaging workup, including 2D echocardiogram and contrast-enhanced chest and abdomen computed tomography scans, was performed which demonstrated a large, heterogeneous, elongated filling defect in the right atrium and right ventricle extending to the inferior vena cava, left renal vein, and left gonadal vein...
April 2018: Radiology Case Reports
https://www.readbyqxmd.com/read/29895122/comprehensive-histopathological-diagnostics-of-aggressive-b-cell-lymphomas-based-on-the-updated-criteria-of-the-world-health-organisation-s-2017-classification
#2
Anna Szumera-Ciećkiewicz, Grzegorz Rymkiewicz, Beata Grygalewicz, Dorota Jesionek-Kupnicka, Andrzej Gruchała, Bogna Ziarkiewicz-Wróblewska, Krystyna Gałązka, Joanna Reszeć, Katarzyna Borg, Monika Prochorec-Sobieszek
Revision of the fourth edition of the World Health Organisation (WHO) Classification of Haematopoietic and Lymphatic Tissues, which was published in 2017, introduced important changes updating the biology, pathology, genetics, and clinical presentation of aggressive B-cell lymphomas. High grade B-cell lymphomas (HGBLs) replaced B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma and Burkitt lymphoma, the new provisional entity Burkitt-like lymphoma with 11q aberration was identified, and some categories were upgraded, e...
2018: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/29885406/eosinophilic-solid-and-cystic-renal-cell-carcinoma-mimicking-epithelioid-angiomyolipoma-series-of-4-primary-tumors-and-2-metastases
#3
Maria S Tretiakova
Eosinophilic solid and cystic renal cell carcinoma (ESC-RCC) is a novel entity of rare tumors with rather unique morphology and immunohistochemical profile. Until recently these tumors were characterized by indolent behavior. Herein we describe a series of six primary and metastatic ESC-RCCs morphologically and immunophenotypically mimicking epithelioid angiomyolipoma (eAML). Retrospective review of unclassified RCCs with oncocytic phenotype yielded several candidate cases, 4 of which fulfilled diagnostic criteria after additional work-up...
June 6, 2018: Human Pathology
https://www.readbyqxmd.com/read/29884406/integrated-genomic-characterization-of-oral-carcinomas-in-post-hematopoietic-stem-cell-transplantation-survivors
#4
Glenn J Hanna, Eric R Kofman, Muhammad Ali Shazib, Sook-Bin Woo, Brendan Reardon, Nathaniel S Treister, Robert I Haddad, Corey S Cutler, Joseph H Antin, Eliezer M Van Allen, Ravindra Uppaluri, Robert J Soiffer
OBJECTIVES: Secondary oral squamous cell carcinoma (OSCC) is a late complication in allogeneic hematopoietic stem cell transplantation (HSCT) patients, but little is known about long-term outcomes and prognostication. Additionally, molecular alterations and immunologic insights unique to this disease remain largely unexplored. METHODS: We present a cohort of 31 patients with post-HSCT OSCC and reported on clinicopathologic predictors of survival. Whole-exome sequencing was performed on 6 (19%) matched pairs of peripheral blood (post-conditioning, pre-HSCT) and tumor samples...
June 2018: Oral Oncology
https://www.readbyqxmd.com/read/29880853/immunoprofiles-of-human-sertoli-cells-infected-with-zika-virus-reveals-unique-insights-into-host-pathogen-crosstalk
#5
Daniel P Strange, Richard Green, David N Siemann, Michael Gale, Saguna Verma
Confirmed reports of Zika virus (ZIKV) in seminal fluid months after clearance of viremia suggests that ZIKV can establish persistent infection in the seminiferous tubules, an immune privileged site of the testis. The seminiferous tubule epithelium is mainly composed of Sertoli cells that function to nourish and protect developing germ cells. We recently demonstrated that primary human Sertoli cells (hSeC) were highly susceptible to ZIKV as compared to dengue virus without causing cell death and thus may act as a reservoir for ZIKV in the testes...
June 7, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29760479/immunoprofiling-of-chlamydia-trachomatis-using-whole-proteome-microarrays-generated-by-on-chip-in-situ-expression
#6
Katrin Hufnagel, Smiths Lueong, Martina Willhauck-Fleckenstein, Agnes Hotz-Wagenblatt, Beiping Miao, Andrea Bauer, Angelika Michel, Julia Butt, Michael Pawlita, Jörg D Hoheisel, Tim Waterboer
Using Chlamydia trachomatis (Ct) as a complex model organism, we describe a method to generate bacterial whole-proteome microarrays using cell-free, on-chip protein expression. Expression constructs were generated by two successive PCRs directly from bacterial genomic DNA. Bacterial proteins expressed on microarrays display antigenic epitopes, thereby providing an efficient method for immunoprofiling of patients and allowing de novo identification of disease-related serum antibodies. Through comparison of antibody reactivity patterns, we newly identified antigens recognized by known Ct-seropositive samples, and antigens reacting only with samples from cervical cancer (CxCa) patients...
May 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29705715/solid-pseudopapillary-neoplasm-spn-of-the-testis-comprehensive-mutational-analysis-of-6-testicular-and-8-pancreatic-spns
#7
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/29686906/postmastectomy-radiation-therapy-are-we-ready-to-individualize-radiation
#8
REVIEW
Ashlyn S Everett, Drexell Hunter Boggs, Jennifer F De Los Santos
Contemporary recommendations for postmastectomy radiation have undergone a shift in thinking away from simple stage based recommendations (one size fits all) to a system that considers both tumor biology and host factors. While surgical staging has traditionally dictated indications for postmastectomy radiation therapy (PMRT), our current understanding of tumor biology, host, immunoprofiles, and tumor microenvironment may direct a more personalized approach to radiation. Understanding the interaction of these variables may permit individualization of adjuvant therapy aimed at appropriate escalation and deescalation, including recommendations for PMRT...
2018: International Journal of Breast Cancer
https://www.readbyqxmd.com/read/29673952/expression-of-c19mc-mirnas-in-hcc-associates-with-stem-cell-features-and-the-cancer-testis-genes-signature
#9
Claudia Augello, Federico Colombo, Andrea Terrasi, Elena Trombetta, Marco Maggioni, Laura Porretti, Giorgio Rossi, Silvana Guerneri, Rosamaria Silipigni, Silvano Bosari, Valentina Vaira
BACKGROUND: Intratumor heterogeneity of hepatocellular carcinoma (HCC) and, among HCC cell subsets, the cancer stem cell population (hCSC), is responsible for therapeutic resistance and disease relapse. AIMS: To characterize hCSC-enriched HCCs at the molecular level. METHODS: Side population (SP) was used to identify the hCSCs in multiple tumor sampling from different patients and primary HCCs cultures. FACS was used to immunoprofile cultures...
June 2018: Digestive and Liver Disease
https://www.readbyqxmd.com/read/29581149/high-resolution-definition-of-humoral-immune-response-correlates-of-effective-immunity-against-hiv
#10
Galit Alter, Karen G Dowell, Eric P Brown, Todd J Suscovich, Anastassia Mikhailova, Alison E Mahan, Bruce D Walker, Falk Nimmerjahn, Chris Bailey-Kellogg, Margaret E Ackerman
Defining correlates of immunity by comprehensively interrogating the extensive biological diversity in naturally or experimentally protected subjects may provide insights critical for guiding the development of effective vaccines and antibody-based therapies. We report advances in a humoral immunoprofiling approach and its application to elucidate hallmarks of effective HIV-1 viral control. Systematic serological analysis for a cohort of HIV-infected subjects with varying viral control was conducted using both a high-resolution, high-throughput biophysical antibody profiling approach, providing unbiased dissection of the humoral response, along with functional antibody assays, characterizing antibody-directed effector functions such as complement fixation and phagocytosis that are central to protective immunity...
March 26, 2018: Molecular Systems Biology
https://www.readbyqxmd.com/read/29567816/correction-for-wang-et-al-immunoprofiling-of-the-tryptophan-rich-antigen-family-in-plasmodium-vivax
#11
Bo Wang, Feng Lu, Yang Cheng, Jun-Hu Chen, Hye-Yoon Jeon, Kwon-Soo Ha, Jun Cao, Myat Htut Nyunt, Jin-Hee Han, Seong-Kyun Lee, Myat Phone Kyaw, Jetsumon Sattabongkot, Eizo Takashima, Takafumi Tsuboi, Eun-Taek Han
No abstract text is available yet for this article.
April 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29533281/a-case-of-a-malignant-cutaneous-mixed-tumor-chondroid-syringoma-of-the-scapula-treated-with-staged-margin-controlled-excision
#12
Karan Lal, Travis J Morrell, Michael Cunningham, Patrick OʼDonnell, Nikki A Levin, Kristine M Cornejo
Cutaneous mixed tumor (chondroid syringoma) is the cutaneous counterpart of pleomorphic adenoma of salivary glands, comprised of both epithelial and mesenchymal components. Malignant transformation is exceptionally rare, with only a few cases reported. We report a case of a malignant cutaneous mixed tumor in an 86-year-old white man who presented with a pink indurated plaque on his left scapula. He had a history of nonmelanoma skin cancers, a stage IB malignant melanoma of a lower extremity and Gleason 4 + 3 prostate cancer treated with brachytherapy, external beam irradiation, and bicalutamide...
March 6, 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29532344/the-negative-impact-of-body-mass-index-on-the-tumor-microenvironment-in-colon-cancer-results-of-a-prospective-trial
#13
Devin C Flaherty, John R Jalas, Myung S Sim, Alexander Stojadinovic, Mladjan Protic, Delphine J Lee, Anton J Bilchik
BACKGROUND: The association between tumor mismatch repair status and obesity in colon cancer is not well understood. The authors of this study hypothesized that mismatch repair deficiency in colon cancer may be associated with a lower Body Mass Index (BMI) and improved patient outcome due to an enhanced tumor immune microenvironment. METHODS: For this study, 70 patients were randomly selected from a prospective trial evaluating nodal ultrastaging for colon cancer...
May 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29503937/malignant-solitary-fibrous-tumor-of-the-orbit-spectrum-of-histologic-features
#14
Lilangi S Ediriwickrema, Michael Burnstine, Maria S Saber, Narsing Rao
Purpose: Primary malignant solitary fibrous tumor (SFT) of the orbit is a rare spindle cell neoplasm that requires excisional biopsy for histopathological diagnosis. We present a clinical case using contemporary immunohistochemical stains, report on the latest World Health Organization classification, and provide a review of the literature. Observations: Report of a single case of a 65 year old male who presented with right-sided proptosis, limited adduction, ptosis, lateral globe displacement, and cheek festooning...
April 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29486992/combined-asrgl1-and-p53-immunohistochemistry-as-an-independent-predictor-of-survival-in-endometrioid-endometrial-carcinoma
#15
Jutta Huvila, Teemu D Laajala, Per-Henrik Edqvist, Adil Mardinoglu, Lauri Talve, Fredrik Pontén, Seija Grénman, Olli Carpén, Tero Aittokallio, Annika Auranen
OBJECTIVE: In clinical practise, prognostication of endometrial cancer is based on clinicopathological risk factors. The use of immunohistochemistry-based markers as prognostic tools is generally not recommended and a systematic analysis of their utility as a panel is lacking. We evaluated whether an immunohistochemical marker panel could reliably assess endometrioid endometrial cancer (EEC) outcome independent of clinicopathological information. METHODS: A cohort of 306 EEC specimens was profiled using tissue microarray (TMA)...
April 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29469188/indeterminate-cell-histiocytosis-in-a-chinese-patient-with-progressive-and-extensive-nodular-lesions-and-mixed-indeterminate-cell-and-macrophage-monocyte-lineage
#16
Qiping Chen, Joyce S-S Lee, Michelle W Liang, Michelle M F Chan, Ramón M Pujol, Luis Requena, Suat Hoon Tan
Indeterminate cell histiocytosis (ICH) is an extremely rare cutaneous neoplastic disorder. It has the immunophenotypic features of both Langerhans and non-Langerhans cell histiocytosis. We report here a case of a healthy young Chinese woman who presented with disfiguring, thick, infiltrated cutaneous nodules on the face, trunk and extremities which appeared progressively over a period of 4 years. No systemic involvement has been detected so far. Results of a skin biopsy showed diffuse dermal infiltration of histiocytoid cells with indented nuclei and positive staining for S100 and CD1a and negativity for CD207 (langerin)...
February 22, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29467336/frameshift-events-predict-anti-pd-1-l1-response-in-head-and-neck-cancer
#17
Glenn J Hanna, Patrick Lizotte, Megan Cavanaugh, Frank C Kuo, Priyanka Shivdasani, Alexander Frieden, Nicole G Chau, Jonathan D Schoenfeld, Jochen H Lorch, Ravindra Uppaluri, Laura E MacConaill, Robert I Haddad
Programmed cell death protein 1 (PD-1) inhibitors have efficacy in treating squamous cell carcinoma of the head and neck (SCCHN), but objective response rates are low. PD-1 ligand (PD-L1) expression alone is not considered a robust predictor of response and additional biomarkers are needed. This 3-year observational cohort followed 126 SCCHN patients treated with anti-PD-1/L1 therapy. Prior to treatment, 81 (64%) had targeted massively parallel tumor sequencing. Of these, 42 (52%) underwent fluorescence-activated cell sorting and PD-L1 immunohistochemistry for tumor immunoprofiling...
February 22, 2018: JCI Insight
https://www.readbyqxmd.com/read/29449194/prostaglandin-d2-receptor-dp1-antibodies-predict-vaccine-induced-and-spontaneous-narcolepsy-type-1-large-scale-study-of-antibody-profiling
#18
Helle Sadam, Arno Pihlak, Anri Kivil, Susan Pihelgas, Mariliis Jaago, Priit Adler, Jaak Vilo, Olli Vapalahti, Toomas Neuman, Dan Lindholm, Markku Partinen, Antti Vaheri, Kaia Palm
BACKGROUND: Neuropathological findings support an autoimmune etiology as an underlying factor for loss of orexin-producing neurons in spontaneous narcolepsy type 1 (narcolepsy with cataplexy; sNT1) as well as in Pandemrix influenza vaccine-induced narcolepsy type 1 (Pdmx-NT1). The precise molecular target or antigens for the immune response have, however, remained elusive. METHODS: Here we have performed a comprehensive antigenic repertoire analysis of sera using the next-generation phage display method - mimotope variation analysis (MVA)...
March 2018: EBioMedicine
https://www.readbyqxmd.com/read/29414392/spatial-distribution-of-osteopontin-cd44v6-and-podoplanin-in-the-lining-epithelium-of-odontogenic-keratocyst-and-their-biological-relevance
#19
Khamisah Awang Kechik, Chong Huat Siar
BACKGROUND AND AIMS: The odontogenic keratocyst (OKC) remains the most challenging jaw cyst to treat because of its locally-aggressive behaviour and high recurrence potential. Emerging evidence suggests that osteopontin, its receptors CD44v6 and integrin αv , and podoplanin, have a role in the local invasiveness of this cyst. However the spatial distribution characteristics of these pro-invasive markers in the lining epithelium of OKC, and their association with the clinicopathologic parameters of OKC are largely unexplored...
February 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29406432/pseudomyogenic-hemangioendothelioma-case-report-and-review-of-the-literature
#20
Emily Raftopoulos, Michael Royer, Mildred Warren, Jin Zhao, Walter Rush
Pseudomyogenic hemangioendothelioma (PHE; epithelioid sarcoma-like hemangioendothelioma) is a rare entity, with 129 reported cases. It is a rarely metastasizing, low-grade vascular tumor that can histologically mimic epithelioid sarcoma and often presents as multiple discontinuous nodules in the extremities. PHEs characteristically and consistently show immunoreactivity for cytokeratins and endothelial markers. We present a case in the thigh of a 65-year-old-man with a 3-month history of painful lesions in the dermis and review the published literature...
February 2, 2018: American Journal of Dermatopathology
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