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https://www.readbyqxmd.com/read/29070275/long-term-follow-up-of-a-patient-with-malignant-transformation-of-inverted-papilloma-into-sinonasal-undifferentiated-carcinoma
#1
Carolyn A Orgain, Terry Y Shibuya, Lester D Thompson, David B Keschner, Rohit Garg, Jivianne T Lee
INTRODUCTION: Inverted papillomas (IP) are benign sinonasal neoplasms, which account for 0.5-4% of all nasal tumors. IPs have been known to transform into squamous cell carcinoma in 5-15% of cases. Rarely, transformations to other malignancies have been reported. Here we report a unique case of malignant transformation of an IP into sinonasal undifferentiated carcinoma (SNUC). METHODS: A case report with a literature review; institutional review board exempted. The clinical presentation, radiographic features, surgical intervention, histopathologic analysis, treatment, and outcome of the case were examined...
October 1, 2017: Allergy & Rhinology
https://www.readbyqxmd.com/read/28868018/spinal-cord-compression-secondary-to-metastatic-sinonasal-undifferentiated-carcinoma
#2
Arthur Wang, John V Wainwright, Anubhav G Amin, Eric Vail, Rachel Silverstein, Kaushik Das
Sinonasal undifferentiated carcinoma (SNUC) is a rare malignancy of the upper airways and anterior skull base that carries a poor prognosis. The tumor is known to be invasive into the surrounding structures of the skull base and brain. To date, there is only one existing case report documenting drop metastasis to the intradural extramedullary spinal cord. To the best of our knowledge, we present the second case of metastatic SNUC to the spine. This report describes a 59-year-old male with a history of head and neck SNUC who presented with thoracic back pain and bilateral lower extremity paresis...
May 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28846088/massively-parallel-single-nucleus-rna-seq-with-dronc-seq
#3
Naomi Habib, Inbal Avraham-Davidi, Anindita Basu, Tyler Burks, Karthik Shekhar, Matan Hofree, Sourav R Choudhury, François Aguet, Ellen Gelfand, Kristin Ardlie, David A Weitz, Orit Rozenblatt-Rosen, Feng Zhang, Aviv Regev
Single-nucleus RNA sequencing (sNuc-seq) profiles RNA from tissues that are preserved or cannot be dissociated, but it does not provide high throughput. Here, we develop DroNc-seq: massively parallel sNuc-seq with droplet technology. We profile 39,111 nuclei from mouse and human archived brain samples to demonstrate sensitive, efficient, and unbiased classification of cell types, paving the way for systematic charting of cell atlases.
October 2017: Nature Methods
https://www.readbyqxmd.com/read/28616785/usefulness-of-nkx2-2-immunohistochemistry-for-distinguishing-ewing-sarcoma-from-other-sinonasal-small-round-blue-cell-tumors
#4
Austin McCuiston, Justin A Bishop
NKX2.2 is a new immunohistochemical marker that has been reported to be sensitive and specific for Ewing sarcoma (ES). It has not, however, been investigated specifically in the sinonasal small round blue cell tumor (SRBCT) differential diagnosis which includes many tumors specific to that site. It has also not been investigated in the newly recognized "adamantinoma-like" variant of ES. Immunohistochemistry for NKX2.2 was performed on 170 poorly differentiated sinonasal neoplasms: 73 squamous cell carcinomas (67 poorly differentiated, non-keratinizing, or basaloid types and 6 nasopharyngeal carcinomas), 46 olfactory neuroblastomas, 8 sinonasal undifferentiated carcinomas (SNUCs), 6 melanomas, 7 Ewing sarcomas, 6 SMARCB1-deficient carcinomas, 6 teratocarcinosarcomas, 5 alveolar rhabdomyosarcomas, 4 solid adenoid cystic carcinomas, 4 NK/T cell lymphomas, 3 NUT carcinomas, and 2 small cell carcinomas...
June 14, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28561906/outcomes-and-patterns-of-failure-for-sinonasal-undifferentiated-carcinoma-snuc-the-mayo-clinic-experience
#5
Mauricio E Gamez, Devyani Lal, Michele Y Halyard, William W Wong, Carlos Vargas, Daniel Ma, Stephen J Ko, Robert L Foote, Samir H Patel
BACKGROUND: Sinonasal undifferentiated carcinoma (SNUC) is a rare aggressive disease arising in the nasal cavity and paranasal sinuses with poor prognosis and unclear optimal management. METHODS: Forty patients were analyzed. Nasal cavity was the most common primary site. Most patients presented with T4 disease, received trimodality therapy, and were treated with intensity-modulated radiotherapy (IMRT). RESULTS: Median follow-up was 6.9 years...
May 31, 2017: Head & Neck
https://www.readbyqxmd.com/read/28493366/frequent-idh2-r172-mutations-in-undifferentiated-and-poorly-differentiated-sinonasal-carcinomas
#6
Snjezana Dogan, Deborah J Chute, Bin Xu, Ryan N Ptashkin, Raghu Chandramohan, Jacklyn Casanova-Murphy, Khedoudja Nafa, Justin A Bishop, Simion I Chiosea, Edward B Stelow, Ian Ganly, David G Pfister, Nora Katabi, Ronald A Ghossein, Michael F Berger
Sinonasal undifferentiated carcinoma (SNUC) is a high-grade malignancy with limited treatment options and poor outcome. A morphological spectrum of 47 sinonasal tumours including 17 (36.2%) SNUCs was analysed at genomic level. Thirty carcinomas (cohort 1) were subjected to a hybridization exon-capture next-generation sequencing assay (MSK-IMPACT(TM) ) to interrogate somatic variants in 279 or 410 cancer-related genes. Seventeen sinonasal tumours (cohort 2) were examined only for the presence of IDH1/2 exon 4 mutations by Sanger sequencing...
August 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28176137/smarca4-deficient-sinonasal-carcinoma
#7
Abbas Agaimy, Wilko Weichert
The term "sinonasal undifferentiated carcinoma (SNUC)" has been coined in 1986 for a highly aggressive sinonasal tract epithelial neoplasm showing distinctive morphology, but lacking any specific line of differentiation. Recent developments resulted in a dynamic splitting of new entities traditionally included in the spectrum of SNUC. Sinonasal NUT-midline carcinoma, adamantinoma-like Ewing family tumors and most recently, SMARCB1(INI1)-deficient sinonasal carcinoma are the main entities defined by specific genetic aberrations...
February 7, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/27938993/meta-analysis-of-701-published-cases-of-sinonasal-neuroendocrine-carcinoma-the-importance-of-differentiation-grade-in-determining-treatment-strategy
#8
REVIEW
Tom P van der Laan, René Iepsma, Max J H Witjes, Bernard F A M van der Laan, Boudewijn E C Plaat, Gyorgy B Halmos
The aim of this meta-analysis was to provide treatment guidelines for sinonasal neuroendocrine carcinoma (SNC) by combining all available data in the literature. A literature search for all studies concerning SNC was performed against the MEDLINE and EMBASE databases. Available clinical data was normalized, pooled, and statistically analyzed. A total of 701 cases of SNC were available for analysis, comprising 127 well or moderately differentiated sinonasal neuroendocrine carcinomas (SNEC), 459 sinonasal undifferentiated carcinoma (SNUC) and 115 sinonasal small cell carcinoma (SmCC)...
December 2016: Oral Oncology
https://www.readbyqxmd.com/read/27857871/sinonasal-carcinomas-with-neuroendocrine-features-histopathological-differentiation-and-treatment-outcomes
#9
Liuba Soldatova, Raewyn G Campbell, Ricardo L Carrau, Daniel M Prevedello, Paul Wakely, Bradley A Otto, Leo F Ditzel Filho
Objectives Sinonasal cancers with neuroendocrine features share similar clinical, radiological, and histopathological features; however, these tumors often exhibit varying degrees of aggressive behavior presenting significant treatment challenges. The objective of this study was to report our experience with these rare malignancies and to present a review of current literature. Methods Following institutional review board approval, the records of all patients with biopsy-proven sinonasal malignancies over a 5-year period were reviewed...
December 2016: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/27717204/treatment-modalities-in-sinonasal-undifferentiated-carcinoma-an-analysis-from-the-national-cancer-database
#10
Mohemmed N Khan, Neeraja Konuthula, Arjun Parasher, Eric M Genden, Brett A Miles, Satish Govindaraj, Alfred M Iloreta
BACKGROUND: Sinonasal undifferentiated carcinoma (SNUC) is a rare, aggressive malignancy of unknown etiology with a poor overall prognosis. Its relative rarity has made it difficult to determine the impact of different treatment modalities on survival. METHODS: Retrospective study of cases in the National Cancer Data Base (NCDB). NCDB cases that were diagnosed as having SNUC between January 1, 2004, and December 31, 2013 were included in the analysis. Outcomes of patients treated with surgery followed adjuvant chemoradiotherapy were compared with definitive chemoradiotherapy...
February 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/27703092/survival-outcomes-for-combined-modality-therapy-for-sinonasal-undifferentiated-carcinoma
#11
Phoebe Kuo, R Peter Manes, Zachary G Schwam, Benjamin L Judson
Objective Sinonasal undifferentiated carcinoma is a rare and aggressive malignancy of the nasal cavity and paranasal sinuses. Multi-institutional studies examining outcomes of combined modality treatment versus other treatment modalities have not been performed. The objective of our study was to present outcomes for multimodality therapy through use of the National Cancer Database. Study Design Retrospective cohort study. Setting National Cancer Database. Methods A total of 435 cases of SNUC diagnosed between 2004 and 2012 were identified...
January 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/27644951/ini1-smarcb1-deficient-sinonasal-carcinoma-a-clinicopathologic-report-of-2-cases
#12
Jason K Wasserman, Brendan C Dickson, Bayardo Perez-Ordonez, John R de Almeida, Jonathan C Irish, Ilan Weinreb
Poorly differentiated sinonasal malignancies are amongst the hardest differential diagnoses in pathology, owing to the large number of rare entities that arise there. Complicating the matter is that most pathologists, including those with experience in head and neck pathology, have little experience in any one of these rare entities. Most patients with sinonasal carcinoma present with locally advanced disease and in the past a combination of chemotherapy, radiotherapy, and surgery would usually be recommended without the specific disease subtype playing a large part of the decision making...
June 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/27576899/relationship-between-18-fdg-pet-and-different-types-of-sinonasal-malignancies
#13
Marylisa Felix-Ravelo, Ayoub Bey, Fabien Arous, Solène Paris-Grandpierre, Roger Jankowski, Duc Trung Nguyen
CONCLUSION: The sensitivity and specificity of a (18)FDG-PET scan may be different according to the histology. The SUVmax and SUV ratio may reflect the tumor's aggressive behavior. OBJECTIVES: To describe the characteristics of PET/CT scans, including the maximum standard uptake values (SUVmax), at initial diagnosis according to six main types of sinonasal malignancies: sinonasal adenocarcinoma (SNAC), sinonasal undifferentiated carcinoma (SNUC), adenoid cystic carcinoma (ACC), sinonasal malignant melanoma (SMM), olfactory neuroblastoma (ONB), and sinonasal neuroendocrine carcinoma (SNEC)...
February 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27526015/poorly-differentiated-sinonasal-tract-malignancies-a-review-focusing-on-recently-described-entities
#14
Abbas Agaimy
Sinonasal tract malignancies are uncommon, representing no more than 5% of all head and neck neoplasms. However, in contrast to other head and neck sites, a significant proportion of sinonasal neoplasms tend to display a poorly/ undifferentiated significantly overlapping morphology and a highly aggressive clinical course, despite being of diverse histogenetic and molecular pathogenesis. The wide spectrum of poorly differentiated sinonasal epithelial neoplasms with small "basaloid" blue cell morphology includes basaloid squamous cell carcinoma (both HPV+ and HPV-unrelated), nasopharyngeal-type lymphoepithelial carcinoma (EBV+), small/large cell neuroendocrine carcinoma, esthesioneuroblastoma, poorly differentiated carcinoma of salivary type (myoepithelial carcinoma and solid adenoid cystic carcinoma), NUT midline carcinoma, the recently described SMARCB1-deficient sinonasal carcinoma, sinonasal teratocarcinosarcoma and, as a diagnosis of exclusion, sinonasal undifferentiated carcinoma (SNUC)...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27478703/human-population-and-socioeconomic-modulators-of-conservation-performance-in-788-amazonian-and-atlantic-forest-reserves
#15
Ana Alice B de Marques, Mauricio Schneider, Carlos A Peres
Protected areas form a quintessential component of the global strategy to perpetuate tropical biodiversity within relatively undisturbed wildlands, but they are becoming increasingly isolated by rapid agricultural encroachment. Here we consider a network of 788 forest protected areas (PAs) in the world's largest tropical country to examine the degree to which they remain intact, and their responses to multiple biophysical and socioeconomic variables potentially affecting natural habitat loss under varying contexts of rural development...
2016: PeerJ
https://www.readbyqxmd.com/read/27471252/div-seq-single-nucleus-rna-seq-reveals-dynamics-of-rare-adult-newborn-neurons
#16
Naomi Habib, Yinqing Li, Matthias Heidenreich, Lukasz Swiech, Inbal Avraham-Davidi, John J Trombetta, Cynthia Hession, Feng Zhang, Aviv Regev
Single-cell RNA sequencing (RNA-Seq) provides rich information about cell types and states. However, it is difficult to capture rare dynamic processes, such as adult neurogenesis, because isolation of rare neurons from adult tissue is challenging and markers for each phase are limited. Here, we develop Div-Seq, which combines scalable single-nucleus RNA-Seq (sNuc-Seq) with pulse labeling of proliferating cells by 5-ethynyl-2'-deoxyuridine (EdU) to profile individual dividing cells. sNuc-Seq and Div-Seq can sensitively identify closely related hippocampal cell types and track transcriptional dynamics of newborn neurons within the adult hippocampal neurogenic niche, respectively...
August 26, 2016: Science
https://www.readbyqxmd.com/read/26954865/pre-operative-chemoradiation-for-sinonasal-undifferentiated-carcinoma-of-the-anterior-nasal-cavity-resected-through-a-lateral-nasal-flap-approach
#17
Bhavishya Surapaneni, Sameep Kadakia, Oleh Slupchynskyj, Codrin Iacob, Roy Holliday
INTRODUCTION: Sinonasal undifferentiated carcinoma (SNUC) is an exceedingly rare and aggressive tumor that carries a poor prognosis due to its non-specific presentation and advanced stage at time of diagnosis. Early detection and treatment are vital, with chemotherapy, radiation, and surgery all being viable options. The literature is sparse and there is no consensus for optimal treatment. In surgical candidates, the otolaryngologist must have a vast skill set in order to resect the tumor with wide margins and reconstruct the defect in hopes of returning the patient to their pre-morbid state...
March 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/26908559/significance-of-tumor-stage-in-sinonasal-undifferentiated-carcinoma-survival-a-population-based-analysis
#18
Edward C Kuan, Armin Arshi, Jon Mallen-St Clair, Bobby A Tajudeen, Elliot Abemayor, Maie A St John
OBJECTIVE: To describe the incidence and determinants of survival of patients with sinonasal undifferentiated carcinoma (SNUC) from 1973 to 2011 using the SEER database (Surveillance, Epidemiology, and End Results), with consideration of tumor stage based on the Kadish system. STUDY DESIGN: Retrospective database analysis. SETTING: Academic medical center. SUBJECTS AND METHODS: The SEER registry was utilized to calculate survival trends for 328 patients with SNUC between 1973 and 2011...
April 2016: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/26829682/management-of-sinonasal-undifferentiated-carcinoma-with-intracerebral-invasion-clinical-experience-at-a-single-institution-and-review-of-the-literature
#19
REVIEW
Valerie Zielinski, Simon Laban, Silke Tribius, Phillipe Schafhausen, Simon Veldhoen, Rainald Knecht, Till Clauditz, Adrian Muenscher
Sinonasal undifferentiated carcinoma (SNUC) represents less than 1% of all malignancies. Most of the tumors are diagnosed at an advanced stage, when they have already invaded neighboring tissue structures. We describe the cases of 2 patients with a substantial intracerebral extension of SNUC who were treated at our institution. One was treated with surgery followed by chemoradiotherapy. The other was primarily treated with induction chemotherapy with a combination of docetaxel, cisplatin, and 5-fluorouracil followed by concurrent chemo- and radiotherapy...
January 2016: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/26559439/nodal-metastasis-and-elective-nodal-level-treatment-in-sinonasal-small-cell-and-sinonasal-undifferentiated-carcinoma-a-surveillance-epidemiology-and-end-results-analysis
#20
Peter H Ahn, Nandita Mitra, Michelle Alonso-Basanta, Nithin D Adappa, James N Palmer, Bert W O'Malley, Christopher H Rassekh, Ara Chalian, Roger B Cohen, Alexander Lin
OBJECTIVE: Risk of nodal involvement in patients with sinonasal small-cell carcinoma and sinonasal undifferentiated carcinoma (SNUC) has not been well defined because of their rarity. We describe a population-based assessment of specific nodal level involvement in this group of rare neuroectodermal tumours. METHODS: The Surveillance, Epidemiology and End Results (SEER) database from 2004 to 2011 identified patients with SNUC and sinonasal small-cell carcinoma. Overall neck involvement and individual nodal level involvement at presentation were assessed, and comparison was made with a contemporaneous cohort of patients with a borderline clinically significant risk of nodal involvement and recurrence...
2016: British Journal of Radiology
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