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Neuroendocrine tumors head neck

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https://www.readbyqxmd.com/read/27759689/complete-spontaneous-regression-of-merkel-cell-carcinoma-after-biopsy-a-case-report-and-review-of-the-literature
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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...
July 11, 2016: Cancer Cytopathology
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
#7
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
https://www.readbyqxmd.com/read/27073708/growth-rate-analysis-of-an-untreated-glomus-vagale-on-mri
#8
Jeffrey Tzu-Yu Wang, Allen Yu-Yu Wang, Sheila Cheng, Lavier Gomes, Melville Da Cruz
Paragangliomas are slow growing, hypervascular neuroendocrine tumors that develop in the extra-adrenal paraganglion tissues. Paraganglioma involving the vagus nerve ganglia is termed glomus vagale. The slow growth of head and neck paragangliomas especially in the absence of symptom may obviate the necessity for any active intervention, in which case, a "wait and scan" policy is implemented involving long-term clinical and radiologic follow-ups. We present a case of a 71-year-old female with an untreated left glomus vagale who underwent a conservative "wait and rescan" plan of management and the tumor was observed with 8 serial MRI scans over a period of 7...
2016: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/26971069/a-peculiar-primary-paraganglioma-of-the-distal-thumb
#9
Sarah T Lander, Erin Coppola, Wakenda Tyler, John C Elfar
A paraganglioma is a highly vascularized neuroendocrine tumor most commonly found within the adrenal gland as a pheochromocytoma. Extra-adrenal paragangliomas are frequently located in the head, neck, thorax, and abdomen. We report the first documented case of a primary paraganglioma found within the appendicular skeleton. Only 2 additional cases of paragangliomas in the extremities have been documented, one in the soft tissue of the forearm and other within the median nerve. Our patient underwent amputation of the distal phalanx, with no sign of recurrence at greater than 1 year of follow-up...
May 2016: Journal of Hand Surgery
https://www.readbyqxmd.com/read/26906950/immunohistochemical-expression-of-keratins-6-7-8-14-16-18-19-and-mnf-116-pancytokeratin-in-primary-and-metastatic-melanoma-of-the-head-and-neck
#10
Rima A Safadi, Dima H Bader, Niveen I Abdullah, Maher A Sughayer
OBJECTIVE: To investigate the immunohistochemical expression (IHCE) of selected keratins in primary cutaneous and mucosal melanoma (pM), and metastatic melanoma (metsM) of the head and neck and to compare their expression to a group of undifferentiated/poorly differentiated tumors of the same anatomic region. STUDY DESIGN: IHCE of K6, K7, K8, K14, K16, K18, and K19 were studied in 29 melanomas and 70 cases of non-melanoma tumors of the same anatomic region (neuroendocrine carcinoma, neuroblastoma, olfactory neuroblastoma, sinonasal undifferentiated carcinoma, undifferentiated nasopharyngeal carcinoma, anaplastic large cell lymphoma, poorly differentiated squamous cell carcinoma (PDSCC), and Ewing sarcoma)...
May 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/26886644/differences-and-similarities-in-the-clinicopathological-features-of-pancreatic-neuroendocrine-tumors-in-china-and-the-united-states-a-multicenter-study
#11
MULTICENTER STUDY
Li-Ming Zhu, Laura Tang, Xin-Wei Qiao, Edward Wolin, Nicholas N Nissen, Deepti Dhall, Jie Chen, Lin Shen, Yihebali Chi, Yao-Zong Yuan, Qi-Wen Ben, Bin Lv, Ya-Ru Zhou, Chun-Mei Bai, Jie Chen, Yu-Li Song, Tian-Tian Song, Chong-Mei Lu, Run Yu, Yuan-Jia Chen
The presentation, pathology, and prognosis of pancreatic neuroendocrine tumors (PNETs) in Asian patients have not been studied in large cohorts. We hypothesized that the clinicopathological features of PNETs of Chinese patients might be different from those of US patients. The objectives of this study were to address whether PNETs in Chinese patients exhibit unique clinicopathological features and natural history, and can be graded and staged using the WHO/ENETS criteria. This is a retrospective review of medical records of patients with PNETs in multiple academic medical centers in China (7) and the United States (2)...
February 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/26872616/results-of-a-prospective-multicenter-neuroendocrine-tumor-registry-reporting-on-clinicopathologic-characteristics-of-greek-patients
#12
George C Nikou, Kalliopi Pazaitou-Panayiotou, Dimitrios Dimitroulopoulos, Georgios Alexandrakis, Pavlos Papakostas, Michalis Vaslamatzis, Philippos Kaldrymidis, Vyron Markussis, Anna Koumarianou
BACKGROUND: The rare incidence of neuroendocrine neoplasms (NENs) has contributed to a paucity of large epidemiologic studies of patients with this condition. We investigated the occurrence and clinicopathologic features of NENs in Greece. METHODS: Between October 2010 and November 2012 we collected data on 246 newly diagnosed patients from a broad-based multi-institutional registry that comprises eight academic and hospital sites in Greece. The WHO 2010 pathologic classification and the 7th AJCC Staging system was applied in all cases...
2016: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/26862914/neuroendocrine-carcinoma-of-the-larynx-with-metastasis-to-the-eyelid
#13
Hussein A Assi, Raina Patel, Syed Mehdi
Neuroendocrine tumors are a rare type of neoplasms that comprise only 0.5% of all malignancies.¹ They usually arise from the gastrointestinal tract and the lung.¹,² Neuroendocrine carcinoma of the head and neck is a relatively rare malignancy described in the literature. The larynx is the most commonly affected region of the head and neck.³,⁴ Nevertheless, small-cell carcinoma comprises only 0.5% of all laryngeal cancers.⁵ Neuroendocrine carcinoma of the larynx carries variable prognosis depending on the histological subtype...
October 2015: Journal of Community and Supportive Oncology
https://www.readbyqxmd.com/read/26854777/atypical-carcinoid-tumor-and-chondroid-and-glandular-hamartoma-of-the-arythenoid-region
#14
Sulen Sarioglu, Guray Akturk, Nesibe Gul Yuksel Aslier, Duriye Betul Yilmaz, Ersoy Dogan
Neuroendocrine tumors of the head and neck are rare. Laryngeal hamartomas are even rarer especially in adult patients. Here in a 69-year-old male patient is presented who had atypical carcinoid tumor and chondroid and glandular hamartoma of the medial mucosa of the left arythenoid. To the best of our knowledge, this is the first case presenting the association of these 2 rare lesions.
March 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/26830400/neuroendocrine-neoplasms-of-the-sinonasal-tract-neuroendocrine-carcinomas-and-olfactory-neuroblastoma
#15
Ketan Shah, Bayardo Perez-Ordóñez
Neuroendocrine neoplasms (NENs) can occur in organs or tissues that do not contain neuroendocrine cells normally and do not necessarily imply embryologic derivation from the neuroectoderm; but rather reflect a shared phenotype characterized by the expression of multiple genes encoding both endocrine and neuronal features. NENs are rare in the sinonasal tract and are subdivided into epithelial and neural subtypes based on the presence of keratins or neurofilaments, respectively. Although relatively rare, neuroendocrine carcinomas (NECs) and olfactory neuroblastoma (ONB) are the most common neuroendocrine neoplasms of the sinonasal tract...
March 2016: Head and Neck Pathology
https://www.readbyqxmd.com/read/26764038/metastatic-hpv-related-head-and-neck-squamous-cell-carcinoma-to-the-lung-and-mediastinal-lymph-nodes-in-aspirated-cytology-material-a-diagnostic-pitfall
#16
Natalie Banet, Lisa M Rooper, Zahra Maleki
BACKGROUND: Although HPV-related head and neck squamous cell carcinoma (HNSCC) has good prognosis, a small proportion of patients develop distant metastases and have worse outcomes. Such metastases can be particularly difficult to diagnose in the lung and mediastinum, where they show extensive morphologic overlap with primary pulmonary neoplasms. This case series discusses metastatic HPV-related HNSCC in lung and mediastinal fine needle aspiration (FNA) cytology. METHODS: The cytopathology archives were searched for lung and mediastinal FNA specimens of patients with HNSCC...
March 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/26735857/large-cell-neuroendocrine-carcinoma-of-the-head-and-neck-a-clinicopathologic-series-of-10-cases-with-an-emphasis-on-hpv-status
#17
Elizabeth D Thompson, Edward B Stelow, Stacey E Mills, William H Westra, Justin A Bishop
Large cell neuroendocrine carcinoma (LCNEC) is a high-grade neuroendocrine neoplasm first described in the lung and subsequently well documented in many other anatomic sites. It has only recently been recognized that LCNEC can also occasionally arise in the head and neck. The role of human papillomavirus (HPV), which is associated with some small cell carcinomas of the head and neck, has not been investigated for LCNEC. We sought to further characterize the histologic, immunophenotypic, and clinical features of LCNEC and also investigate the role of HPV in this newly described group of tumors...
April 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/26712262/unexpected-histopathologic-result-of-a-wide-surgical-excision-of-a-bleeding-lesion-of-the-skin-a-case-of-merkel-cell-carcinoma-of-the-leg
#18
G Cestaro, P Festa, A M Cricrì, M Antropoli, M Castriconi
BACKGROUND: Merkel cell Carcinoma is a very rare primary cutaneous tumor that often looks like an innocuous and asymptomatic nodule or plaque of the skin, but with a very fast growing. It is also called neuroendocrine carcinoma of the skin or trabecular cancer. The main treatment is based on a local excision followed by radiotherapy or chemotherapy. The most common site of presentation of this lesion is head and neck (40-60%.) and it often occur in older men with immunological system dysfunction like HIV patients, cancer, severe infections and immunosuppression for transplantation...
September 2015: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/26649218/an-unusual-case-of-laryngeal-paraganglioma-in-a-patient-with-carotid-body-paraganglioma-multimodality-imaging-findings
#19
Serap Dogan, Serkan Senol, Hakan Imamoglu, Ummuhan Abdulrezzak, Afra Ekinci, Imdat Yuce, Mustafa Ozturk
Multiple paragangliomas of the head and neck are rare conditions. Carotid paragangliomas are most common multiple paragangliomas. Laryngeal paragangliomas are very rare neuroendocrine tumors and usually are seen as symptomatic solitary lesions. We present multimodality imaging findings of incidentally detected laryngeal paraganglioma in a woman with synchronous carotid body paraganglioma and positive family history. To the best of our knowledge, this is the first case of laryngeal and carotid body paragangliomas in a patient with positive family history...
2015: Case Reports in Radiology
https://www.readbyqxmd.com/read/26622884/primary-neuroendocrine-tumors-of-the-ear-nose-and-throat-a-report-of-three-cases-and-a-review-of-the-literature
#20
Rachad Mhawej, Chadi Farah, Amine Haddad, Bassam Tabchy
The aim of the present study was to review all cases of neuroendocrine tumors of the ear, nose and throat in a tertiary care center, as well as the data published in the literature. The study presents all the cases of neuroendocrine tumors (NETs) in the Hotel Dieu De France Hospital (Beirut, Lebanon) between January 2004 and January 2014. The data reported in the English and French literature is also reviewed with regard to the typical clinical presentation and management of these tumors. Three cases of NETs presented to the Department of Otolaryngology-Head and Neck Surgery during the study period...
October 2015: Oncology Letters
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