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Neuroendocrine tumors head neck

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https://www.readbyqxmd.com/read/28635990/neuroendocrine-neoplasms-of-the-head-and-neck-and-olfactory-neuroblastoma-diagnosis-and-classification
#1
S Uccella, G Ottini, C Facco, R Maragliano, S Asioli, F Sessa, S La Rosa
Neuroendocrine neoplasms (NENs) of the head and neck are a rare group of heterogeneous epithelial neoplastic proliferations arising in virtually all of the different organs of this region, particularly in the nasal cavity, the paranasal sinuses, the nasopharynx, the larynx, the salivary glands, and the middle ear. They encompass a wide spectrum of entities ranging from very indolent neuroendocrine tumors to highly aggressive neuroendocrine carcinomas. They may represent a challenge for radiologists, oncologists, and pathologists and a correct diagnosis is crucial for the management of patients...
March 2017: Pathologica
https://www.readbyqxmd.com/read/28528398/squamous-and-neuroendocrine-specific-immunohistochemical-markers-in-head-and-neck-squamous-cell-carcinoma-a-tissue-microarray-study
#2
J S Lewis, R D Chernock, J A Bishop
The performance characteristics of neuroendocrine-specific and squamous-specific immunohistochemical markers in head and neck squamous cell carcinomas (SCC), in particular in oropharyngeal tumors in this era of human papillomavirus (HPV)-induced cases, are not well-established. The differential diagnosis for poorly differentiated SCCs, for nonkeratinizing oropharyngeal SCCs, and for other specific SCC variants such as basaloid SCC and undifferentiated (or lymphoepithelial-like) carcinomas includes neuroendocrine carcinomas...
May 20, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28444451/new-tumor-entities-in-the-4th-edition-of-the-world-health-organization-classification-of-head-and-neck-tumors-nasal-cavity-paranasal-sinuses-and-skull-base
#3
REVIEW
Lester D R Thompson, Alessandro Franchi
The World Health Organization recently published the 4th edition of the Classification of Head and Neck Tumors, including several new entities, emerging entities, and significant updates to the classification and characterization of tumor and tumor-like lesions, specifically as it relates to nasal cavity, paranasal sinuses, and skull base in this overview. Of note, three new entities (NUT carcinoma, seromucinous hamartoma, biphenotypic sinonasal sarcoma,) were added to this section, while emerging entities (SMARCB1-deficient carcinoma and HPV-related carcinoma with adenoid cystic-like features) and several tumor-like entities (respiratory epithelial adenomatoid hamartoma, chondromesenchymal hamartoma) were included as provisional diagnoses or discussed in the setting of the differential diagnosis...
April 25, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28440235/the-effect-of-solid-pancreatic-mass-lesions-on-pancreatic-duct-diameter-at-endoscopic-ultrasound
#4
Anand C Baxi, Qingwei Jiang, Jinghua Hao, Zhuo Yang, Kevin Woods, Steven Keilin, Field F Willingham, Qiang Cai
OBJECTIVES: To evaluate the effect of solid pancreatic masses on the pancreatic duct (PD) at the endoscopic ultrasound (EUS) and the relationship of the location/size of a mass and PD dilation. MATERIALS AND METHODS: Patients who underwent EUS for pancreatic indications from 2011 to 2013 at a single center were retrospectively identified. Those with biopsies that revealed adenocarcinoma or neuroendocrine tumors in the pancreas were identified and PD size was ascertained from EUS, computed tomography, or magnetic resonance imaging...
March 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28430347/hypopharyngeal-squamous-cell-carcinoma-and-laryngeal-neuroendocrine-carcinoma-colliding-in-the-aryepiglottic-fold-a-case-report
#5
Roberta Marangoni, Simone Mauramati, Giulia Bertino, Antonio Occhini, Marco Benazzo, Patrizia Morbini
PURPOSE: A collision tumor consists of 2 different histologically distinct and topographically independent tumors merging in the same mass. In the head and neck region they are rare, with only 4 cases reported in the larynx. CASE REPORT: A 60-year-old heavy smoker complained of a left submandibular lesion in October 2014. The lesion was excised and showed a poorly differentiated carcinoma, suggestive for adenocarcinoma. After a positron emission tomography-computed tomography scan showed increased metabolic activity in the left laterocervical region and right vocal cord, the patient underwent endoscopic biopsy of the lesion of the left piriform sinus, which was positive for moderately differentiated squamous cell carcinoma (SCC)...
April 14, 2017: Tumori
https://www.readbyqxmd.com/read/28299533/clival-paragangliomas-a-report-of-two-cases-involving-the-midline-skull-base-and-review-of-the-literature
#6
Jacob Ruzevick, Eun Kyung Koh, Luis F Gonzalez-Cuyar, Patrick J Cimino, Kristen Moe, Lorena A Wright, Richard Failor, Manuel Ferreira
Head and neck paragangliomas are rare neuroendocrine tumors that arise from paraganglion cells of the parasympathetic nervous system. Paragangliomas arising from the midline skull base have only rarely been reported. Surgery is the mainstay of treatment and adjuvant radiation is often recommended. These tumors can rarely secrete metanephrines and normetanephrines which can complicate operative management. Here we present two cases of clival paragangliomas with unique clinical presentations and review the previous literature on skull base paragangliomas...
March 16, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28297754/-clinicopathologic-characteristics-of-head-and-neck-carcinoma-showing-thymus-like-element
#7
X J Cui, C Y Zhang, P Su, B Lyu, Y B Ren, X S Fan, X F Zhang, Y Wang, Y H Song, Z Y Liu
Objective: To investigate clinicopathological features of carcinoma showing thymus-like elements (CASTLE) in the head and neck regions. Methods: Clinicopathological data of 7 patients with CASTLE in the head and neck regions were retrospectively reviewed.Immunohistochemical staining and in situ hybridization for EBER were performed. BRAF(V600E) mutation was examined by ARMS method in 6 cases. Results: There were 5 females and 2 males with age between 49 and 78 years (average of 65.6 years). All tumors were solitary nodular lesions with an infiltrative border, including 6 intrathyroid tumors and 1 extrathyroid tumor in the laryngeal pharynx...
March 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28247231/update-from-the-4th-edition-of-the-world-health-organization-classification-of-head-and-neck-tumours-what-is-new-in-the-2017-who-blue-book-for-tumours-of-the-hypopharynx-larynx-trachea-and-parapharyngeal-space
#8
Nina Gale, Mario Poljak, Nina Zidar
Chapter 3 "Tumours of the hypopharynx, larynx, trachea, and parapharyngeal space" of the World Health Organization (WHO) Blue Book 2017 "Classification of Head and Neck Tumours" shows a shortened list of entities, especially due to reducing the number of benign and malignant soft tissue tumours, malignant melanoma and some others, which are transferred to more frequently affected regions of the head and neck. The basic concept of the new edition is to assimilate all advances concerning the discussed tumours in a shorter framework, appropriate for daily work...
March 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28247224/update-from-the-4th-edition-of-the-world-health-organization-classification-of-head-and-neck-tumours-paragangliomas
#9
Michelle D Williams, Arthur S Tischler
Updated editions of The World Health Organization Classification of Tumours Pathology & Genetics for both Head and Neck Tumours and Tumours of Endocrine Organs took place in 2016 based on consensus conferences. These editions present unification of concepts in paragangliomas and highlight expanding knowledge of their etiology. There is a major emphasis in the new bluebooks on familial/syndromic paragangliomas, representing ~40% of all head and neck paragangliomas. Ancillary use of immunohistochemical evaluation, specifically of SDHB, allows the pathologist to screen for a large subset of these potentially hereditary cases...
March 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28231563/hypoxia-pathway-mutations-in-pheochromocytomas-and-paragangliomas
#10
REVIEW
Diana Amorim-Pires, Joana Peixoto, Jorge Lima
Pheochromocytomas (PCC) and sympathetic paragangliomas (PGL) are rare neuroendocrine tumors, which derive from chromaffin cells occurring in the adrenal medulla and extra-adrenal sympathetic paraganglia. PCC and PGL are often benign, catecholamine-producing tumors, responsible for a myriad of symptoms that may be potentially hazardous to the patient. In contrast, nonsecreting parasympathetic PGL, derived from chief cells, develop mainly in the head and neck region. Although PCC/PGL are more commonly sporadic tumors, germline mutations are present in up to 40% of the patients, ranking these tumors among those with the highest degree of heritability...
2016: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28162264/nonfunctioning-small-incidental-pancreatic-neuroendocrine-tumors-results-of-a-nonoperative-approach-cohort
#11
Catalina Uribe Galeano, Joan Fabregat Prous, Juli Busquets Barenys, Nuria Pelaez Serra, Lluís Secanella Medayo, Emilio Ramos Rubio, Sandra Ruiz Osuna, Carlos Villabona Artero
OBJECTIVE: The availability of new imaging techniques has conditioned an increase in the incidental diagnosis of small nonfunctioning pancreatic neuroendocrine tumors (PNET-NF). The best treatment is controversial, some authors advise a conservative approach in selected cases. Our aim is to analyze the evolution of incidental, small size PNET-NF, treated with clinical follow-up without surgery. METHODS: We performed a retrospective analysis of a prospective database of patients diagnosed incidentally with PNET-NF since November 2007 to September 2015...
February 2, 2017: Cirugía Española
https://www.readbyqxmd.com/read/28028970/diagnostic-and-therapeutic-difficulties-in-carotid-body-paragangliomas-based-on-clinical-experience-and-a-review-of-the-literature
#12
REVIEW
Karolina Dorobisz, Tadeusz Dorobisz, Hanna Temporale, Tomasz Zatoński, Marzena Kubacka, Mariusz Chabowski, Andrzej Dorobisz, Tomasz Kręcicki, Dariusz Janczak
BACKGROUND: Paragangliomas are rare neuroendocrine tumors, representing 0.03% of all tumors. Half of them develop in the head and neck, and among these 50% are sporadic cervical tumors. OBJECTIVES: The aim of the study was to carry out an epidemiological and clinical analysis of paraganglioma patients diagnosed and treated at the authors' clinics between 1985 and 2014. MATERIAL AND METHODS: The medical data of 47 patients were analyzed. All the patients were qualified for surgery...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
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
#13
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/27759689/complete-spontaneous-regression-of-merkel-cell-carcinoma-after-biopsy-a-case-report-and-review-of-the-literature
#14
REVIEW
Parnian Ahmadi Moghaddam, Kristine M Cornejo, Lloyd Hutchinson, Keith Tomaszewicz, Karen Dresser, April Deng, Patrick OʼDonnell
Merkel cell carcinoma (MCC) is a rare primary cutaneous neuroendocrine tumor that typically occurs on the head and neck of the elderly and follows an aggressive clinical course. Merkel cell polyomavirus (MCPyV) has been identified in up to 80% of cases and has been shown to participate in MCC tumorigenesis. Complete spontaneous regression of MCC has been rarely reported in the literature. We describe a case of a 79-year-old man that presented with a rapidly growing, 3-cm mass on the left jaw. An incisional biopsy revealed MCC...
November 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27610258/primary-neuroendocrine-tumor-of-the-parotid-gland-a-case-report-and-a-comprehensive-review-of-a-rare-entity
#15
Olga Martínez-Sáez, Javier Molina-Cerrillo, Carmen Moreno García Del Real, Rafael Barberá Durban, Juan J Díez, Teresa Alonso-Gordoa, Enrique Grande Pulido
Neuroendocrine tumors (NETs) comprise a heterogeneous group of malignancies from cells derived from the neural crest with neuroendocrine differentiation. Despite the differences in the site of origin, nomenclature, biological behavior, and functional status, NETs share certain ultrastructural and immunohistochemical features. NETs are relative rare tumors with an annual incidence of 5.76 new cases per 100.000 inhabitants and they usually appear in the gastrointestinal tract or in the pulmonary system. Head and neck NETs are uncommon with limited information regarding frequency, most of them showing small cell carcinoma features...
2016: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/27529044/an-extremely-rare-case-of-advanced-metastatic-small-cell-neuroendocrine-carcinoma-of-sinonasal-tract
#16
Yu Yu Thar, Poras Patel, Tiangui Huang, Elizabeth Guevara
Small cell neuroendocrine carcinoma (SNEC) is a rare form of malignancy. It mainly presents as bronchogenic neoplasm, and the extrapulmonary form accounts for only 0.1% to 0.4% of all cancers. These extrapulmonary tumors have been described most frequently in the urinary bladder, prostate, esophagus, stomach, colon and rectum, gall bladder, head and neck, cervix, and skin. Primary SNEC of the sinonasal tract is extremely rare with only less than 100 cases reported in the literature. Because of extreme rarity and aggressiveness of the tumor, the management for this entity varies considerably mandating multimodality approach...
2016: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/27433367/a-unique-case-of-an-aggressive-gangliocytic-paraganglioma-of-the-filum-terminale
#17
Omar S Akbik, Crina Floruta, Muhammad O Chohan, Karen S SantaCruz, Andrew P Carlson
Paragangliomas are rare neuroendocrine tumors that are mostly found in the head and neck. Even less common are gangliocytic variant paragangliomas of the spine for which there are only 7 other documented cases in the literature. We report a case of gangliocytic paraganglioma of the sacral spine in a 68-year-old man. The growth pattern is documented over three years, which to our knowledge has not previously been reported in the literature and is different from the natural history. Clinical, radiological, and pathological characteristics of the tumor are discussed in light of available reports of this rare tumor...
2016: Case Reports in Surgery
https://www.readbyqxmd.com/read/27429827/an-eustachian-tube-neuroendocrine-carcinoma-a-previously-undescribed-entity-and-review-of-the-literature
#18
Gavin J le Nobel, Vincent Y Lin, Vladimir Iakovlev, John M Lee
Primary sinonasal and middle ear neuroendocrine carcinomas are rare malignancies of the head and neck. Owing to the rarity of these tumors, the clinical behavior and optimal management of these tumors are not well defined. We present a case of an incidentally discovered sinonasal neuroendocrine carcinoma that was found to originate from the Eustachian tube, which has not previously been described in the literature. This patient was treated with primary surgical resection using a combination of transnasal and transaural approaches and achieved an incomplete resection...
2016: Case Reports in Surgery
https://www.readbyqxmd.com/read/27400194/cytopathologic-features-of-nut-midline-carcinoma-a-series-of-26-specimens-from-13-patients
#19
Justin A Bishop, Christopher A French, Syed Z Ali
BACKGROUND: NUT midline carcinoma (NMC) is an increasingly recognized neoplasm defined by rearrangements of the nuclear protein in testis (NUT) gene (also known as NUTM1). NMC is important to diagnose for prognostic and diagnostic reasons, but to date, only a small case series and rare case reports of the cytopathologic features of NMC have been published. METHODS: All NMC specimens (confirmed by molecular testing and/or NUT immunoreactivity) with cytopathologic material available were identified at 2 academic centers...
December 2016: Cancer
https://www.readbyqxmd.com/read/27392929/p16-overexpression-in-high-grade-neuroendocrine-carcinomas-of-the-head-and-neck-potential-diagnostic-pitfall-with-hpv-related-carcinomas
#20
Llucia Alos, Sofia Hakim, Ana-Belen Larque, Jorge de la Oliva, Leonardo Rodriguez-Carunchio, Miguel Caballero, Alfons Nadal, Carles Marti, Nuria Guimera, Maria-Teresa Fernandez-Figueras, Wim Quint, Jaume Ordi
High-grade neuroendocrine carcinomas (HGNECs) of the head and neck have the morphological appearance of undifferentiated carcinomas and could be histologically similar to human papillomavirus (HPV)-associated non-keratinizing squamous cell carcinomas of the head and neck. The aim of the study is to characterize histologically, immunohistochemically, and virologically these unusual neoplasms. Nineteen HGNECs of the head and neck (1 oropharyngeal, 5 sinonasal, 7 of the larynx, and 6 of the parotid gland) were reviewed and analyzed with a immunohistochemical panel, with special emphasis on cell cycle proteins...
September 2016: Virchows Archiv: An International Journal of Pathology
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