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Head and Neck Pathology

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https://www.readbyqxmd.com/read/28528398/squamous-and-neuroendocrine-specific-immunohistochemical-markers-in-head-and-neck-squamous-cell-carcinoma-a-tissue-microarray-study
#1
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/28516348/sclerosing-mucoepidermoid-carcinoma-of-the-submandibular-gland-presenting-as-chronic-sialadenitis-a-case-report-and-review-of-literature
#2
L Heptinstall, C Carroll, J Siddiqi, D Kamel, M Petkar
Sclerosing mucoepidermoid carcinoma of the salivary gland (SMEC) is a rare subtype of mucoepidermoid carcinoma (MEC), first described in 1987 by Chan and Saw. As far as we are aware, only 30 cases have been published since then. Most cases were located in the parotid gland with some cases described in the submandibular and minor salivary glands. SMEC typically presents as a long-standing mass, with a non-specific enhancing appearance on imaging and is often non-diagnostic on fine needle aspiration, making pre-operative diagnosis very difficult...
May 17, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28509953/hyalinizing-clear-cell-carcinoma-of-the-tonsil-a-case-report
#3
Bridget Burgess, Vijayalakshmi Ananthanarayanan, Steven Charous
Hyalinzing clear cell carcinoma is a rare tumor of the oral cavity and is even more rarely located in the tonsil. Here, we present a case report of a pedunculated tonsillar mass in a nearly asymptomatic patient that was present for 2 years prior to removal. Complete surgical excision was achieved and no adjuvant therapy was recommended. We include a discussion of this rare pathology and its typical clinical presentation and course.
May 16, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28508997/fibromyxoma-of-the-jaw-case-report-and-review-of-the-literature
#4
Thabet Alhousami, Amarpreet Sabharwal, Shivane Gupta, Alfredo Aguirre, Etern Park, Jill M Kramer
We report a case of fibromyxoma of the mandible, a rare benign odontogenic tumor. Our patient presented in the first trimester of pregnancy with a large mass in the right body of the mandible exhibiting displacement of teeth and destruction of an extensive area of the mandibular bone. The mass was biopsied and diagnosed as a fibromyxoma. The large size of the tumor dictated a wide mandibular resection. We will review the clinical, radiographic, and histologic features of fibromyxoma and discuss its differential diagnoses...
May 16, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28508996/hyalinizing-clear-cell-carcinoma-of-the-bronchus
#5
Maryam Shahi, Michelle Dolan, Paari Murugan
Hyalinizing clear cell carcinoma (HCCC) is an uncommon low-grade minor salivary gland neoplasm that usually arises in the head and neck region. We report a 55-year-old man who presented with a 2.5 cm lung mass that was partially obstructing the right bronchus intermedius. The tumor consisted of cords and nests of clear and eosinophilic cells in a hyalinized stromal background. The neoplastic cells expressed cytokeratin (CK) 7, CK 5/6, high-molecular weight cytokeratin (34BE12), p63 and p40, while TTF-1, napsin A, CK20, S100, smooth muscle actin, synaptophysin and chromogranin were negative...
May 16, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28508272/nasopharyngeal-angiofibroma-a-clinical-histopathological-and-immunohistochemical-study-of-42-cases-with-emphasis-on-stromal-features
#6
Celeste Sánchez-Romero, Roman Carlos, Juan Pablo Díaz Molina, Lester D R Thompson, Oslei Paes de Almeida, Alicia Rumayor Piña
Nasopharyngeal angiofibroma is a benign but aggressive tumor of unknown etiology, typically occurring in adolescent males. It is described as a rare neoplasm; however, the prevalence seems to have geographic differences. All cases referred to our head and neck clinical and pathology service were reviewed. Most of the patients presented at an advanced stage. The clinical and radiographic features are presented and discussed. Histologically, the tumor shows a highly vascular fibrous proliferation with characteristic plump, angulated and stellate cells, categorized as fibroblasts...
May 15, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28474294/influence-of-deviated-nasal-septum-on-nasal-epithelium-an-analysis
#7
Lakshit Kumar, Basavaraj P Belaldavar, Hema Bannur
Nasal obstruction is one of the most common complaint that ENT surgeon faces in his day to day practice. Deviated nasal septum is the most common cause for the nasal obstruction. It causes altered airflow dynamics which leads to various histopathological changes in nasal mucosa.Histopathological changes like lymphocytic infiltration and squamous metaplasia were studied and comparison was done between convex and concave side. A prospective randomized study conducted on 42 patients of deviated nasal septum from January 2015 to December 2015 selected from inpatient department of Otorhinolaryngology, KLES Dr...
May 4, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28466407/rhabdomyosarcoma-spindle-cell-sclerosing-variant-a-clinical-and-histopathological-examination-of-this-rare-variant-with-three-new-cases-from-the-oral-cavity
#8
Molly Housley Smith, Daniel Atherton, John D Reith, Nadim M Islam, Indraneel Bhattacharyya, Donald M Cohen
Spindle cell/sclerosing rhabdomyosarcoma (S-ScRMS) was recently recognized in 2013 by the World Health Organization (WHO) as a stand-alone entity (Parham et al., WHO classification of tumours of soft tissue and bone, IARC Press, Lyon, 2013). Historically, the spindle cell and sclerosing variants were subcategorized under embryonal type rhabdomyosarcoma. Current data supports that certain S-ScRMS cases have a more aggressive clinical course with reduction of long-term survival, and those found in the head and neck region often exhibit extensive local recurrence...
May 2, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28439689/divergent-schwannoma-like-phenotype-in-a-pleomorphic-adenoma
#9
Srinivasa R Chandra, Farah Karim, Yeshwant B Rawal
The schwannoma-like pleomorphic adenoma is a rare histopathological variant of the pleomorphic adenoma. Five previous reports with seven cases exist in English language literature. These tumors present in the parotid gland most commonly. Intraparotid schwannomas of the facial nerve and schwannomas with glandular differentiation have also been reported. A 60-year-old male presented with an asymptomatic swelling over the left angle of the mandible. The swelling had been present for about 12 years with a recent increase in size...
April 24, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28439688/erratum-to-endonasal-endoscopic-surgery-in-the-management-of-sinonasal-and-anterior-skull-base-malignancies
#10
Christopher R Roxbury, Masaru Ishii, Jeremy D Richmon, Ari M Blitz, Douglas D Reh, Gary L Gallia
No abstract text is available yet for this article.
April 24, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28401439/primary-extracranial-meningioma-a-rare-location
#11
Inara Carneiro Costa Rege, Robson Rodrigues Garcia, Elismauro Francisco Mendonça
Meningiomas are benign extraaxial tumors of the central nervous system (CNS). Extracranial meningiomas are extremely rare (2%) and can develop as a direct extension from a primary intracranial meningioma or as true primary extracranial meningioma originating from ectopic arachnoid cells. Only eight cases of primary meningioma in the jaw have been reported to date. Extracranial meningiomas are frequently misdiagnosed, resulting in inappropriate clinical management. The aim of this article was to describe the case of a man with an asymptomatic swelling in the right retromolar area over a period of 2 months...
April 11, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28374102/predictive-significance-of-tumor-depth-and-budding-for-late-lymph-node-metastases-in-patients-with-clinical-n0-early-oral-tongue-carcinoma
#12
Yukiko Hori, Akira Kubota, Tomoyuki Yokose, Madoka Furukawa, Takeshi Matsushita, Morihito Takita, Sachiyo Mitsunaga, Nobutaka Mizoguchi, Tetsuo Nonaka, Yuko Nakayama, Nobuhiko Oridate
In clinical N0 early oral tongue carcinoma, treatment of occult lymph node metastasis is controversial. The purpose of this study was to assess the histopathological risk factors for predicting late lymph node metastasis in early oral tongue carcinoma. We retrospectively reviewed 48 patients with early oral tongue squamous cell carcinoma. Associations between the histopathological factors (depth of tumor, differentiation, blood vessel invasion, lymphatic invasion, and tumor budding) and late lymph metastasis were analyzed...
April 3, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28349372/nut-midline-carcinoma-of-the-sublingual-gland-clinical-presentation-and-review
#13
Nolan B Seim, Ramez H W Philips, Lynn Schoenfield, Theodoros N Teknos, James W Rocco, Amit Agrawal, Enver Ozer, Ricardo L Carrau, Stephen Y Kang, Matthew O Old
NUT midline carcinoma (NMC) is a rare and aggressive disease encountered in the midline of the head and neck or mediastinum. Due to its sparse incidence and subtle pathologic features, we aim to increase knowledge and awareness for this pathologic entity. We present an exemplary case of a young, healthy male presenting with oral cavity pain and cervical lymphadenopathy. This patient was initially diagnosed with an unspecified, highly aggressive sublingual gland malignancy and underwent locoregional resection with free flap reconstruction however suffered a rapid local recurrence and widely extensive metastasis within just 1 month...
March 27, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28349371/intraoral-salivary-duct-cyst-clinical-and-histopathologic-features-of-177-cases
#14
Ivan J Stojanov, Umer A Malik, Sook-Bin Woo
The salivary duct cyst (SDC) is a reactive ductal ectasia most frequently seen in major salivary glands, and likely caused by obstruction. The aim of this study is to define the clinical and histopathologic spectrum of intraoral SDCs. Cases were retrieved from the archives of Harvard School of Dental Medicine/StrataDx, Inc. from January 2012 to August 2014. There were 177 cases of which 103 (58.2%) occurred in females, with a median age of 56 (range 2-95). Approximately half of cases (45.8%) presented in the area of the buccal mucosa, lower lip mucosa, or mandibular vestibule, and 23...
March 27, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28349370/solid-cell-nests-and-cyst-heterogeneity-in-thyroglosal-duct-cysts
#15
LETTER
Adriana Handra-Luca, Ibtissem Radhouani
No abstract text is available yet for this article.
March 27, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28342060/glycogen-rich-clear-cell-squamous-cell-carcinoma-originating-in-the-oral-cavity
#16
Zaid H Khoury, Amr Bugshan, Joshua E Lubek, John C Papadimitriou, John R Basile, Rania H Younis
Clear cell squamous cell carcinoma (CCSCC) is a rare histological subtype of squamous cell carcinoma (SCC) that was originally described in the skin. Here, we report a case of a 66-year-old female patient who presented with a fungating ulcerative mass of the left lateral tongue extending anteriorly to the floor of the mouth, and posteriorly to the left retromolar fossa and the oropharynx. The patient had a history of SCC of the left posterior tongue that was treated with partial glossectomy and adjuvant radiotherapy...
March 24, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28342059/dental-traits-of-congenital-syphilis-revisited-in-dental-outpatient-department-opd
#17
LETTER
Thorakkal Shamim, Prabha Surendran Renjini
No abstract text is available yet for this article.
March 24, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28337592/head-and-neck-round-cell-sarcomas-a-comparative-clinicopathologic-analysis-of-2-molecular-subsets-ewing-and-cic-rearranged-sarcomas
#18
Adepitan A Owosho, Cherry L Estilo, Joseph M Huryn, Lei Zhang, Christopher D M Fletcher, Cristina R Antonescu
CIC-rearranged sarcoma (CRS) is a relatively new entity defined by its pathognomonic genetic signature and undifferentiated round cell phenotype, initially grouped together with the 'Ewing sarcoma-like tumors'. However, increasing data suggest that these tumors should be regarded as a stand-alone pathologic entity. We conducted a clinicopathologic analysis on molecularly conformed Ewing sarcoma (ES) and CRS arising in the head and neck (HN) and compared to a well characterized cohort of ES and CRS from other locations...
March 23, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28321774/intestinal-type-adenocarcinoma-classification-immunophenotype-molecular-features-and-differential-diagnosis
#19
Ilmo Leivo
Intestinal-type adenocarcinoma is the second most frequent sinonasal adenocarcinoma. High incidence of these tumors is seen among workers with occupational wood dust exposure, particularly of hardwood dusts. Intestinal-type adenocarcinoma has striking histomorphologic and immunophenotypic similarities with colorectal adenocarcinomas, but on the level of molecular pathologic mechanisms these tumors have their own specific features different from gastrointestinal tumors. This article provides an update on current histopathologic classification of intestinal-type adenocarcinomas, their immunophenotypic properties, recent advances in molecular pathologic features and differential diagnostic considerations...
March 20, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28321773/salivary-duct-carcinoma-an-update-on-morphologic-mimics-and-diagnostic-use-of-androgen-receptor-immunohistochemistry
#20
Aaron M Udager, Simion I Chiosea
More than 15 years ago, seminal studies by Dr. E. Leon Barnes and colleagues transformed our understanding of salivary duct carcinoma (SDC) and, in doing so, paved the way for contemporary diagnostic and therapeutic approaches to this aggressive salivary adenocarcinoma. In particular, attention to the apocrine phenotype of SDC and expression of androgen receptor (AR) by immunohistochemistry has improved the diagnostic accuracy and showed how SDC can be reliably distinguished from its morphologic mimics (i.e...
March 20, 2017: Head and Neck Pathology
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