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Head and Neck Pathology

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https://www.readbyqxmd.com/read/28401439/primary-extracranial-meningioma-a-rare-location
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
https://www.readbyqxmd.com/read/28321772/paragangliomas-of-the-head-and-neck-an-overview-from-diagnosis-to-genetics
#11
Michelle D Williams
Paragangliomas (PGL) develop from the parasympathetic system in the head and neck (HN) and arise primarily in four distinct areas: Carotid body, vagal, middle ear, and larynx. Globally, the diagnosis and morphologic features are the same regardless of anatomic site, however the incidence, frequency of genetic alterations/syndromes and differential diagnosis vary. It is now recognized that nearly 40% of all HN PGLs are hereditary, including a significant subset without a known family history. Now pathologists are central to the evaluation for diagnosis and further management of patients with HNPGLs...
March 20, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28321771/osps-and-esps-and-isps-oh-my-an-update-on-sinonasal-schneiderian-papillomas
#12
Justin A Bishop
Sinonasal (Schneiderian) papillomas are benign neoplasms that arise in the sinonasal tract. Since their initial descriptions, sinonasal papillomas have triggered debate regarding their classification, etiology, rate or predictors of malignant transformation, and other issues. While significant strides have been made in recent years, there are still aspects of sinonasal papillomas that remain unclear even now. This review will serve to update the practicing pathologist on the current understanding of sinonasal papillomas...
March 20, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28293858/thyroglossal-duct-cyst-carcinomas-in-pediatric-patients-report-of-two-cases-with-a-comprehensive-literature-review
#13
Lester D R Thompson, Hannah B Herrera, Sean K Lau
Thyroglossal duct cyst (TGDC) carcinomas are rarely encountered in the pediatric population. The clinical behavior of these tumors in the pediatric setting is unclear and management is not well defined. Two cases of pediatric thyroglossal duct cyst carcinoma were identified in a review of all thyroglossal duct cysts diagnosed over a ten year period. These two cases were analyzed along with 57 cases of thyroglossal duct cyst carcinoma affecting patients less than 21 years of age compiled from the English literature...
March 14, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28289982/radial-circumferential-surgical-margin-in-laryngectomy-specimens
#14
LETTER
Sulen Sarioglu, Ahmet Omer Ikiz
No abstract text is available yet for this article.
March 13, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28275955/oral-pyoderma-gangrenosum-diagnosis-treatment-and-challenges-a-systematic-review
#15
Caroline Bissonnette, Adel Kauzman, Gisele N Mainville
Pyoderma gangrenosum (PG) is a distinctive ulcerative skin disorder of unknown etiology, associated with an underlying systemic disease in up to 70% of cases. The condition is characterized by the appearance of one or more necrotic ulcers with a ragged undermined violaceous border and surrounding erythema. Lesions are often initiated by minor trauma. The condition can affect any anatomical site, however the head and neck are rarely involved. Although the oral cavity is subject to recurrent minor trauma through everyday activities such as mastication and oral hygiene, as well as during dental treatment, oral lesions appear to be extremely rare...
March 8, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28220360/oral-histoplasmosis
#16
Gillian A Folk, Brenda L Nelson
A 44-year-old female presented to her general dentist with the chief complaint of a painful mouth sore of 2 weeks duration. Clinical examination revealed an irregularly shaped ulcer of the buccal and lingual attached gingiva of the anterior mandible. A biopsy was performed and microscopic evaluation revealed histoplasmosis. Histoplasmosis, caused by Histoplasma capsulate, is the most common fungal infection in the United States. Oral lesions of histoplasmosis are generally associated with the disseminated form of histoplasmosis and may present as a fungating or ulcerative lesion of the oral mucosa...
February 20, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28210977/genetic-characterization-of-adenoid-cystic-carcinoma-of-the-minor-salivary-glands-a-potential-familial-occurrence-in-first-degree-relatives
#17
Hani Ibrahim Channir, Thomas van Overeem Hansen, Simon Andreasen, Christina Westmose Yde, Katalin Kiss, Birgitte Wittenborg Charabi
Adenoid cystic carcinoma (AdCC) is a malignant salivary gland tumor. To date, no cases of AdCC in first-degree relatives have been reported in the literature. We present a 50-year-old female (Case 1) and this patients' father (Case 2), both of whom were diagnosed with AdCC of the minor salivary glands. Histology of Case 1 demonstrated a tubulocribriform AdCC whereas Case 2 primarily was an AdCC of solid type. Both cases harbored the MYB-NFIB gene fusion as demonstrated by FISH and RNA-sequencing. After filtering and selection of putative deleterious variants, whole exome sequencing identified 18 germline variants in common between Case 1 and Case 2...
February 16, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28197925/giant-prolactinoma-presenting-as-a-base-of-skull-tumor-with-nasopharyngeal-extension-a-potential-diagnostic-pitfall-in-neuroendocrine-lesions-of-the-base-of-skull
#18
Amy Prawira, Dorothy Lazinski, Lillian L Siu, Bayardo Perez-Ordonez
Pituitary adenomas presenting in uncommon anatomical locations are commonly misdiagnosed. Dramatic clinical presentation with hemorrhage and infarction, along with a lack of endocrine symptoms may further confound the diagnosis in some patients as illustrated in one of our two previously reported cases of non-small cell neuroendocrine carcinoma of the sinonasal tract and nasopharynx. This report presents the clinical progress of case number 2, which has a revised diagnosis of giant lactotroph pituitary adenoma...
February 14, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28194567/ultrastructural-characterization-of-mammary-analogue-secretory-carcinoma-of-the-salivary-glands-a-distinct-entity-from-acinic-cell-carcinoma
#19
Julie Guilmette, Gunnlaugur P Nielsen, William C Faquin, Martin Selig, Vânia Nosé, Anthony W S Chi, Peter M Sadow
Mammary analogue secretory carcinoma (MASC) of the salivary glands is a recently described neoplasm of the salivary glands with a characteristic morphology complemented by a specific cytogenetic translocation and gene rearrangements. Although immunophenotypic and cytogenetic differences allow for a more reliable distinction, ultrastructural features can also provide important information about the relationship between MASC, classic acinic cell carcinoma (AciCC), and AciCC intercalated duct cell-predominant variant...
February 13, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28181187/transcriptionally-active-high-risk-human-papillomavirus-is-not-a-common-etiologic-agent-in-the-malignant-transformation-of-inverted-schneiderian-papillomas
#20
Lisa M Rooper, Justin A Bishop, William H Westra
The role of human papillomavirus (HPV) as an etiologic and transformational agent in inverted Schneiderian papilloma (ISP) is unclear. Indeed, reported detection rates of HPV in ISPs range from 0 to 100%. The true incidence has been confounded by a tendency to conflate high- and low-risk HPV types and by the inability to discern biologically relevant from irrelevant HPV infections. The recent development of RNA in situ hybridization for high-risk HPV E6/E7 mRNA now allows the direct visualization of transcriptionally active high-risk HPV in ISP, providing an opportunity to more definitively assess its role in the development and progression of ISPs...
February 8, 2017: Head and Neck Pathology
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