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https://www.readbyqxmd.com/read/28634564/pax8-distinguishes-diffuse-large-b-cell-lymphoma-mimicking-sarcoma
#1
Michelle S Hirsch, Alessandra F Nascimento
PAX8 is important for embryogenesis of the thyroid, Müllerian system, and upper urinary/renal tract, and expression of PAX8 has been described in carcinomas from each of these sites. The sensitivity and specificity of the polyclonal PAX8 antibody in a large cohort of epithelial tumors as well as lymphomas have been previously determined, the latter because polyclonal PAX8 is known to be immunoreactive in nonneoplastic B-cell lymphocytes which are often used as the positive internal control for immunohistochemistry...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28633089/first-line-panitumumab-plus-folfox4-or-folfiri-in-colorectal-cancer-with-multiple-or-unresectable-liver-metastases-a-randomised-phase-ii-trial-planet-ttd
#2
Alfredo Carrato, Albert Abad, Bartomeu Massuti, Cristina Grávalos, Pilar Escudero, Federico Longo-Muñoz, José-Luis Manzano, Auxiliadora Gómez, María José Safont, Javier Gallego, Beatriz García-Paredes, Carles Pericay, Rosario Dueñas, Fernando Rivera, Ferrán Losa, Manuel Valladares-Ayerbes, Encarnación González, Enrique Aranda
BACKGROUND: In first-line wild-type (WT)-Kirsten rat sarcoma viral oncogene homologue (KRAS) metastatic colorectal cancer (mCRC), panitumumab (Pmab) improves outcomes when added to FOLFOX [folinic acid, 5-fluorouracil, and oxaliplatin] or FOLFIRI [folinic acid, 5-fluorouracil, and irinotecan]. However no trial has directly compared these combinations. METHODS: Multicentre, open-label study in untreated patients ≥ 18 years with (WT)-KRAS mCRC and multiple or unresectable liver-limited disease (LLD) randomised to either Pmab-FOLFOX4 or Pmab-FOLFIRI...
June 17, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28629789/undifferentiated-high-grade-pleomorphic-sarcoma-of-ethmoid-sinus-a-case-report-and-literature-review
#3
Yupeng Zhu, Dapeng Hao, Xiaoyan Tang, Lei Sun
No abstract text is available yet for this article.
June 1, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28625393/establishment-and-characterization-of-uterine-sarcoma-and-carcinosarcoma-patient-derived-xenograft-models
#4
Tine Cuppens, Jeroen Depreeuw, Daniela Annibali, Debby Thomas, Els Hermans, Ellen Gommé, Xuan Bich Trinh, David Debruyne, Philippe Moerman, Diether Lambrechts, Frédéric Amant
OBJECTIVE: Uterine sarcomas (US) and carcinosarcomas (CS) are rare, aggressive cancers. The lack of reliable preclinical models hampers the search for new treatment strategies and predictive biomarkers. To this end, we established and characterized US and CS patient-derived xenograft (PDX) models. METHODS: Tumor fragments of US and CS were subcutaneously implanted into immunocompromised mice. Engrafted xenograft and original tumors were compared by means of histology, immunohistochemistry, whole-genome low-coverage sequencing for copy number variations, and RNA sequencing...
June 16, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28622181/validation-of-a-mitotic-index-cutoff-as-a-prognostic-marker-in-undifferentiated-uterine-sarcomas
#5
Elin Hardell, Sofia Josefson, Mehran Ghaderi, Tone Skeie-Jensen, Sofia Westbom-Fremer, Elizabeth H Cheek, Debra Bell, Jonas Selling, John K Schoolmeester, Anna Måsbäck, Ben Davidson, Joseph W Carlson
Undifferentiated uterine sarcomas (UUS) are a heterogenous group of high-grade mesenchymal tumors. Although these tumors are highly aggressive, a subset of patients may experience long-term survival. These tumors have previously been divided morphologically into uniform and pleomorphic types. A previous study demonstrated that a mitotic index cutoff of 25 mitoses/10 high-power fields (corresponding to 11.16 mitotic figures/mm) could successfully divide tumors into 2 prognostic groups with significantly different overall survival...
June 15, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28621321/bcor-is-a-robust-diagnostic-immunohistochemical-marker-of-genetically-diverse-high-grade-endometrial-stromal-sarcoma-including-tumors-exhibiting-variant-morphology
#6
Sarah Chiang, Cheng-Han Lee, Colin J R Stewart, Esther Oliva, Lien N Hoang, Rola H Ali, Martee L Hensley, Javier A Arias-Stella, Denise Frosina, Achim A Jungbluth, Ryma Benayed, Marc Ladanyi, Meera Hameed, Lu Wang, Yu-Chien Kao, Cristina R Antonescu, Robert A Soslow
Recognition of high-grade endometrial stromal sarcoma is important because of its aggressive clinical behavior. Morphologic features of YWHAE-NUTM2 high-grade endometrial stromal sarcoma may overlap with other uterine sarcoma types. BCOR immunoexpression was studied in these tumors and their morphologic mimics to assess its diagnostic utility. BCOR immunohistochemical staining was performed on archival tissue from 28 high-grade endometrial stromal sarcomas with classic morphology (20 YWHAE-NUTM2, 5 ZC3H7B-BCOR, 3 BCOR-ZC3H7B), 3 high-grade endometrial stromal sarcomas with unusual morphology and unknown gene rearrangement status, 66 low-grade endometrial stromal sarcomas, 21 endometrial stromal nodules, 38 uterine leiomyosarcomas, and 19 uterine leiomyomas...
June 16, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28619757/cdk4-6-inhibitors-sensitize-rb-positive-sarcoma-cells-to-wee1-kinase-inhibition-through-reversible-cell-cycle-arrest
#7
Ashleigh M Francis, Angela Alexander, Yanna Liu, Smruthi Vijayaraghavan, Kwang Hui Low, Dong Yang, Tuyen Bui, Neeta Somaiah, Vinod Ravi, Khandan Keyomarsi, Kelly K Hunt
Research into the biology of soft tissue sarcomas has uncovered very few effective treatment strategies that improve upon the current standard of care which usually involves surgery, radiation, and chemotherapy. Many patients with large (>5cm), high-grade sarcomas develop recurrence, and at that point have limited treatment options available. One challenge is the heterogeneity of genetic drivers of sarcomas, and many of these are not validated targets. Even when such genes are tractable targets, the rarity of each subtype of sarcoma makes advances in research slow...
June 15, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28607816/recurrence-case-of-rare-scalp-dermatofibrosarcoma-protuberans-two-case-reports-of-a-wide-radical-excision-craniectomy-bone-involvement-followed-by-cranioplasty-and-reconstruction
#8
Ahmad Faried, Wargian Hadisaputra, Muhammad Z Arifin
BACKGROUND: Dermatofibrosarcoma protuberans (DFSP) is a rare low-grade sarcoma of the fibroblast originating from the dermal layer of the skin, characterized by a locally aggressive growth and high rate of local recurrence. CASE DESCRIPTION: Two patients underwent a wide radical excision of recurrent scalp DFSP which was reconstructed with translational skin flap and split-thickness skin graft. We described above cases several years ago with a local excision of the tumor; recently, they developed local recurrence of DFSP with calvarial involvement...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28597093/-pediatric-salivary-gland-tumors-and-tumor-like-lesions
#9
REVIEW
A Agaimy, H Iro, J Zenk
Salivary gland tumors and tumor-like lesions in the pediatric population are uncommon. They comprise a heterogeneous group of infectious/inflammatory and neoplastic conditions. Pediatric salivary neoplasms include benign tumors of mesenchymal or epithelial origin as well as malignancies of epithelial (carcinomas), mesenchymal (sarcoma) or hematolymphoid (lymphoma) derivation. Infectious/inflammatory conditions and hematolymphoid malignancies may represent either genuine parenchymal pathology or conditions involving intraglandular lymph nodes of the parotid glands (intraglandular lymphadenopathy and intraglandular nodal lymphomas)...
June 9, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28596939/undifferentiated-pleomorphic-sarcoma-and-the-importance-of-considering-the-oncogenic-and-immune-suppressant-role-of-the-human-t-cell-lymphotropic-virus-type-1-a-case-report
#10
Sergio Lupo, Carolina Berini, Camila Cánepa, Eduardo Santini Araujo, Mirna Biglione
INTRODUCTION: Soft-tissue sarcomas account for 0.7% of all malignant tumors, with an incidence rate of 3 per 100,000 persons/year. The undifferentiated pleomorphic sarcoma (UPS) with giant cells, a high grade tumor of soft tissue, is very unusual, especially in young adults before the age of 40. Human T-cell lymphotropic virus type 1 (HTLV-1) is a human retrovirus, classified as group 1 human carcinogens by The International Agency for Research on Cancer, that causes an aggressive malignancy known as adult T-cell lymphoma/leukemia and a progressive chronic inflammatory neurological disease named HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP)...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28596015/low-grade-and-high-grade-endometrial-stromal-sarcoma-a-national-cancer-database-study
#11
Brandon-Luke L Seagle, Arunima Shilpi, Samuel Buchanan, Chelain Goodman, Shohreh Shahabi
OBJECTIVE: To provide refined prognostic information from large cohorts of women with low-grade or high-grade endometrial stromal sarcoma (ESS). METHODS: We performed an observational retrospective cohort analysis of women diagnosed with low-grade or high-grade ESS from the 1998-2013 National Cancer Database. Kaplan-Meier and multivariable accelerated failure time survival analyses were performed to identify prognostic factors after multiple imputation of missing data...
June 5, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28588782/rapidly-progressing-large-cell-neuroendocrine-carcinoma-arising-from-the-uterine-corpus-a-case-report-and-review-of-the-literature
#12
Aya Kobayashi, Tamaki Yahata, Sakiko Nanjo, Mika Mizoguchi, Madoka Yamamoto, Yasushi Mabuchi, Shigetaka Yagi, Sawako Minami, Kazuhiko Ino
Large-cell neuroendocrine carcinoma (LCNEC) is a high-grade neuroendocrine tumor. LCNECs arising from the genital organs are highly malignant and rare, with <20 cases of LCNEC developing from the uterine endometrium reported to date. We herein present the case of a patient with LCNEC of the endometrium. The patient was a 52-year-old woman, who exhibited lower abdominal pain and rapid uterine enlargement during outpatient treatment for uterine myoma. The endometrial biopsy suggested a diagnosis of poorly differentiated carcinoma or carcinosarcoma...
June 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28583233/myxofibrosarcoma-of-the-maxillary-sinus
#13
Anni Wong, Richard Chan Woo Park, Neena M Mirani, Jean Anderson Eloy
BACKGROUND: Myxofibrosarcoma (MFS) is a common sarcoma in the extremities of older individuals but is extremely uncommon in the head and neck region. Diagnosis may be challenging but is critical to the management of the patient. We discuss the radiographic and histopathologic characteristics of this destructive tumor. The distinguishing features of MFS and its differential diagnosis are reviewed to familiarize the managing otolaryngologist with this rare entity. METHODS: A 61-year-old woman presents with a 6-week history of severe left facial pain and left eye pain...
June 1, 2017: Allergy & Rhinology
https://www.readbyqxmd.com/read/28582410/a-phase-i-study-of-single-agent-perifosine-for-recurrent-or-refractory-pediatric-cns-and-solid-tumors
#14
Oren J Becher, Nathan E Millard, Shakeel Modak, Brian H Kushner, Sofia Haque, Ivan Spasojevic, Tanya M Trippett, Stephen W Gilheeney, Yasmin Khakoo, David C Lyden, Kevin C De Braganca, Jill M Kolesar, Jason T Huse, Kim Kramer, Nai-Kong V Cheung, Ira J Dunkel
The PI3K/Akt/mTOR signaling pathway is aberrantly activated in various pediatric tumors. We conducted a phase I study of the Akt inhibitor perifosine in patients with recurrent/refractory pediatric CNS and solid tumors. This was a standard 3+3 open-label dose-escalation study to assess pharmacokinetics, describe toxicities, and identify the MTD for single-agent perifosine. Five dose levels were investigated, ranging from 25 to 125 mg/m2/day for 28 days per cycle. Twenty-three patients (median age 10 years, range 4-18 years) with CNS tumors (DIPG [n = 3], high-grade glioma [n = 5], medulloblastoma [n = 2], ependymoma [n = 3]), neuroblastoma (n = 8), Wilms tumor (n = 1), and Ewing sarcoma (n = 1) were treated...
2017: PloS One
https://www.readbyqxmd.com/read/28579008/histology-and-grading-are-important-prognostic-factors-in-synovial-sarcoma
#15
G Bianchi, A Sambri, A Righi, A P Dei Tos, P Picci, D Donati
INTRODUCTION: The diagnosis of synovial sarcoma (SS) is currently based on clinical, morphological, immunohistochemical and cytogenetic data. Some of these factors such as grade and histology, specific translocations (SS18-SSX1 vs. SS18-SSX2) and the reduced expression of INI1, were proposed as prognostic variables. The aim of this study was to verify whether histological (grading and histology) and molecular (type of SSX translocation and INI1 expression) characteristics of SS influence the prognosis of the disease...
May 25, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28577717/contemporary-reappraisal-of-the-efficacy-of-adjuvant-chemotherapy-in-resected-retroperitoneal-sarcoma-evidence-from-a-nationwide-clinical-oncology-database-and-review-of-the-literature
#16
REVIEW
Jashodeep Datta, Brett L Ecker, Madalyn G Neuwirth, Rula C Geha, Douglas L Fraker, Robert E Roses, Giorgos C Karakousis
BACKGROUND: While margin-negative resection remains the cornerstone of therapy for retroperitoneal sarcoma (RPS), the impact of adjuvant chemotherapy (AC) on overall survival (OS) remains poorly understood. METHODS: The National Cancer Data Base was queried for patients undergoing curative-intent resection of primary non-metastatic RPS (2004-2013). Multivariable modeling identified factors associated with AC receipt. Cox regression identified covariates associated with OS, and AC and surgery alone (SA) cohorts were matched 1:1 by propensity scores based on these covariates...
June 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28570276/macrophage-infiltration-and-genetic-landscape-of-undifferentiated-uterine-sarcomas
#17
Joanna Przybyl, Magdalena Kowalewska, Anna Quattrone, Barbara Dewaele, Vanessa Vanspauwen, Sushama Varma, Sujay Vennam, Aaron M Newman, Michal Swierniak, Elwira Bakuła-Zalewska, Janusz A Siedlecki, Mariusz Bidzinski, Jan Cools, Matt van de Rijn, Maria Debiec-Rychter
Endometrial stromal tumors include translocation-associated low- and high-grade endometrial stromal sarcomas (ESS) and highly malignant undifferentiated uterine sarcomas (UUS). UUS is considered a poorly defined group of aggressive tumors and is often seen as a diagnosis of exclusion after ESS and leiomyosarcoma (LMS) have been ruled out. We performed a comprehensive analysis of gene expression, copy number variation, point mutations, and immune cell infiltrates in the largest series to date of all major types of uterine sarcomas to shed light on the biology of UUS and to identify potential novel therapeutic targets...
June 2, 2017: JCI Insight
https://www.readbyqxmd.com/read/28558780/low-grade-fibromyxoid-sarcoma-of-the-external-anal-sphincter-a-case-report
#18
Lee-Kiat Ban, Ailun Heather Tseng, Shih-Hung Huang, Henry Hsin-Chung Lee
BACKGROUND: Low-grade fibromyxoid sarcoma (LGFMS) is a rare soft tissue tumor that has a tendency to grow in the deep soft tissue of the trunk and extremities. Despite its benign appearance, the tumor has a high recurrence rate and metastatic potential. LGFMS in the perineal space is rare, and only a few cases have been reported. We present the first case of LGFMS to be located at the external anal sphincter. CASE PRESENTATION: A 27-year-old male patient admitted to our Surgical Department with perianal pain and swollen for a year...
May 30, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28556791/significance-of-phosphorylated-epidermal-growth-factor-receptor-and-its-signal-transducers-in-human-soft-tissue-sarcoma
#19
Jia-Lin Yang, Romi Das Gupta, David Goldstein, Philip J Crowe
Abstract: Previous studies have shown that total epidermal growth factor receptor (EGFR) protein is highly expressed in soft tissue sarcoma (STS). We aimed to investigate the significance of phosphorylated-EGFR (pEGFR) and its activated-downstream signal transducers in STS tissue samples. A tissue microarray comprising 87 STS samples was assessed for total EGFR, pEGFR and its phosphorylated signal transducers and expression was correlated with clinicopathlogical parameters including patient outcome. Although the expression of total EGFR was significantly associated with adverse STS histologic grade (p = 0...
May 30, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28554758/primary-dura-based-synovial-sarcoma-of-the-parafalcine-region-of-brain
#20
Shivani Sharma, Anurag Sharma, Geover Lobo, Madhukar Nayak, Dinesh Pradhan, Samriti, Swati Bindal, Kamakhya Gogoi, Rahul Katara, Lata Kini, Sambit K Mohanty
Dura-based intracranial neoplasms include a wide range of primary and metastatic tumors, varying in their clinical, radiologic, morphologic, and immunophenotypic characteristics. At this anatomic location, sarcomas are rare, however, they exhibit close morphologic resemblances to meningioma. Herein we describe the third case of primary synovial sarcoma of the parafalcine region in a50-years-old female, who presented with left-sided hemiplegia. The radiologic survey revealed a 5.5cm×5.8cm contrast enhancing dura-based mass at the right parafalcine region with meningeal enhancement and edema in the surrounding areas...
March 23, 2017: Pathology, Research and Practice
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