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Sökning: WFRF:(Gnepp D. R.)

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1.
  • Seethala, R. R., et al. (författare)
  • Data Set for the Reporting of Carcinomas of the Major Salivary Glands: Explanations and Recommendations of the Guidelines From the International Collaboration on Cancer Reporting
  • 2019
  • Ingår i: Archives of Pathology & Laboratory Medicine. - 0003-9985. ; 143:5, s. 578-586
  • Tidskriftsartikel (refereegranskat)abstract
    • The International Collaboration on Cancer Reporting is a nonprofit organization whose goal is to develop evidence-based, internationally agreed-upon standardized data sets for each anatomic site, to be used throughout the world. Providing global standardization of pathology tumor classification, staging, and other reporting elements will lead to achieving the objective of improved patient management and enhanced epidemiologic research. Salivary gland carcinomas are relatively uncommon, and as such, meaningful data about the many histologic types are not easily compared. Morphologic overlap between tumor types makes accurate classification challenging, but there are often significant differences in patient outcomes. Therefore, issues related to tumor type, tumor grading, high-grade transformation, extent of invasion, number and size of nerves affected, and types of ancillary studies are discussed in the context of daily application to specimens from these organs. This review focuses on the data set developed for salivary gland carcinomas with discussion of the key core and noncore elements developed for inclusion by an international expert panel of head and neck and oralmaxillofacial pathologists and surgeons.
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2.
  • Bell, D., et al. (författare)
  • Neuroendocrine neoplasms of the sinonasal region
  • 2016
  • Ingår i: Head and Neck-Journal for the Sciences and Specialties of the Head and Neck. - : Wiley. - 1043-3074. ; 38:S1
  • Tidskriftsartikel (refereegranskat)abstract
    • Neuroendocrine neoplasms of the sinonasal region, which are relatively uncommon but clinically very important, are reviewed here in the light of current knowledge. Using a definition for neuroendocrine based on phenotypic, histologic, immunohistochemical, and electron microscopic features rather than histogenetic criteria, sinonasal neuroendocrine carcinomas are examined with a particular emphasis on the small-cell and large-cell subtypes. This is followed by revisiting olfactory neuroblastoma because it is also a tumor that shows a neuroendocrine phenotype. Kadish clinical and Hyams histologic grading systems as prognosticators of olfactory neuroblastoma are also considered in detail. Finally, controversies regarding sinonasal undifferentiated carcinoma as a neuroendocrine tumor are discussed and a possible relationship with high-grade olfactory neuroblastoma is explored. Genetic events and current management of these tumors are also outlined.
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3.
  • Vander Poorten, V., et al. (författare)
  • Salivary acinic cell carcinoma: reappraisal and update
  • 2016
  • Ingår i: European Archives of Oto-Rhino-Laryngology. - : Springer Science and Business Media LLC. - 0937-4477 .- 1434-4726. ; 273:11, s. 3511-3531
  • Forskningsöversikt (refereegranskat)abstract
    • Epidemiologic and clinicopathologic features, therapeutic strategies, and prognosis for acinic cell carcinoma of the major and minor salivary glands are critically reviewed. We explore histopathologic, histochemical, electron microscopic and immunohistochemical aspects and discuss histologic grading, histogenesis, animal models, and genetic events. In the context of possible diagnostic difficulties, the relationship to mammary analog secretory carcinoma is probed and a classification is suggested. Areas of controversy or uncertainty, which may benefit from further investigations, are also highlighted.
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4.
  • Bishop, J. A., et al. (författare)
  • Rhabdomyoblastic Differentiation in Head and Neck Malignancies Other Than Rhabdomyosarcoma
  • 2015
  • Ingår i: Head and Neck Pathology. - : Springer Science and Business Media LLC. - 1936-055X .- 1936-0568. ; 9:4, s. 507-518
  • Tidskriftsartikel (refereegranskat)abstract
    • Rhabdomyosarcoma is a relatively common soft tissue sarcoma that frequently affects children and adolescents and may involve the head and neck. Rhabdomyosarcoma is defined by skeletal muscle differentiation which can be suggested by routine histology and confirmed by immunohistochemistry for the skeletal muscle-specific markers myogenin or myoD1. At the same time, it must be remembered that when it comes to head and neck malignancies, skeletal muscle differentiation is not limited to rhabdomyosarcoma. A lack of awareness of this phenomenon could lead to misdiagnosis and, subsequently, inappropriate therapeutic interventions. This review focuses on malignant neoplasms of the head and neck other than rhabdomyosarcoma that may exhibit rhabdomyoblastic differentiation, with an emphasis on strategies to resolve the diagnostic dilemmas these tumors may present. Axiomatically, no primary central nervous system tumors will be discussed. © 2015, Springer Science+Business Media New York.
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5.
  • Hunt, J. L., et al. (författare)
  • Well-differentiated Neuroendocrine Carcinoma of the Larynx: Confusion of Terminology and Uncertainty of Early Studies
  • 2019
  • Ingår i: Advances in Anatomic Pathology. - : Ovid Technologies (Wolters Kluwer Health). - 1072-4109. ; 26:4, s. 246-250
  • Tidskriftsartikel (refereegranskat)abstract
    • Well-differentiated neuroendocrine carcinoma (also known as "carcinoid") of the larynx is an exceedingly rare tumor that has an epithelial origin. These tumors are malignant and have a low, but definite, risk of metastasis. Although it can be challenging, this tumor should be differentiated from moderately differentiated neuroendocrine carcinoma (also known as "atypical carcinoid"). The clinical and pathologic features of this tumor, as well as treatment and prognosis, are reviewed in detail.
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6.
  • Strosberg, C., et al. (författare)
  • Update on Neuroendocrine Carcinomas of the Larynx
  • 2019
  • Ingår i: American Journal of Clinical Pathology. - : Oxford University Press (OUP). - 0002-9173 .- 1943-7722. ; 152:6, s. 686-700
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: Laryngeal neuroendocrine carcinomas are heterogeneous neoplasms characterized by neuroendocrine differentiation. Their prognoses are dependent on tumor type, therefore different classifications have been developed. Moreover, other tumors have overlapping pathologic features posing a range of diagnostic possibilities. Methods: A review of the literature was performed to comprehensively understand the classification and diagnosis of these tumors. Results: We review the past and present classification systems, with emphasis to the latest 2017 World Health Organization Classification of Head and Neck Tumors. We highlight salient clinicopathologic features and discuss the presumptive etiologic role of human papilloma virus. We share a practical algorithmic approach to the diagnosis of suspected neuroendocrine neoplasms of the larynx including a novel marker for neuroendocrine differentiation, insulinoma-associated protein 1. Conclusions: Accurate diagnosis and grading of laryngeal neuroendocrine carcinomas is critical for prognostication and therapeutic decision making. The use of an algorithm is instrumental in assuring the exclusion of mimickers.
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  • Resultat 1-6 av 6

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