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Head and Neck Pathology

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https://www.readbyqxmd.com/read/29340950/dermatologic-lesions-submitted-to-an-oral-and-maxillofacial-pathology-biopsy-service-an-analysis-of-2487-cases
#1
Rekha Reddy, Liya Davidova, Indraneel Bhattacharyya, Donald M Cohen, Mohammed N Islam, Sarah G Fitzpatrick
Skin lesions are often submitted to oral and maxillofacial pathology practices. The purpose of this study is to evaluate the frequency, distribution, variability, and composition of dermatologic lesions within a large oral and maxillofacial pathology biopsy service. An IRB-approved retrospective search of skin lesions diagnosed at University of Florida oral and maxillofacial pathology biopsy service between 1994 and 2015 was performed. 2487 cases were included in the study. Gender was reported in 2466 cases, of which 59% were male and 41% female...
January 16, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29340949/hybrid-central-odontogenic-fibroma-central-giant-cell-lesion-a-missing-report
#2
LETTER
Fumio Ide, Naoyuki Matsumoto, Kentaro Kikuchi, Kaoru Kusama
No abstract text is available yet for this article.
January 16, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29340948/a-case-of-concomitant-pemphigus-foliaceus-and-oral-pemphigus-vulgaris
#3
Alexandra C Perks, Paula M Farthing, Ruth Murphy, Anne M Hegarty
Pemphigus is a chronic autoimmune condition that can affect multiple areas of the body. The two main subtypes of pemphigus are pemphigus vulgaris (PV) and pemphigus foliaceus (PF) which can rarely occur concurrently or even transition from one to the other. The process of transition may be explained by qualitative changes in desmoglein autoantibody profile. We present a rare case of concomitant PF and oral PV and explore the literature on transitions between pemphigus subtypes and whether this case could represent a transition from PF to PV...
January 16, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29302900/epstein-barr-virus-positive-large-cell-neuroendocrine-carcinoma-of-the-nasopharynx-report-of-a-case-with-complete-clinical-and-radiological-response-after-combined-chemoradiotherapy
#4
Jason K Wasserman, Sylvia Papp, Andrew J Hope, Bayardo Perez-Ordóñez
Neuroendocrine carcinomas of the head and neck are rare and are classified as well differentiated, moderately differentiated, and poorly differentiated carcinomas with the latter category being subdivided into small cell and large cell neuroendocrine carcinoma (LCNEC). While most carcinomas in the nasopharynx are associated with Epstein-Barr virus (EBV), there has been only one previous report demonstrating a link between EBV and LCNEC of the nasopharynx. In this report we describe a second case of EBV-positive LCNEC arising in the nasopharynx with bilateral cervical metastases...
January 4, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29302899/salivary-duct-carcinoma-and-invasive-ductal-carcinoma-of-the-breast-a-comparative-immunohistochemical-study
#5
Jalal B Jalaly, Souzan Sanati, Rebecca D Chernock, Dikson G Dibe, Samir K El-Mofty
Salivary duct carcinoma (SDC) is a high-grade salivary gland malignancy with great morphological resemblance to invasive ductal carcinoma (IDC) of the breast. Rarely, female patients may have a past history of both SDC and IDC. When these patients present with distant metastasis, accurate identification of the primary tumor is particularly difficult. Additionally, rare metastasis of SDC to the breast and IDC to the salivary (parotid) gland can also present a diagnostic challenge. Our aim was to develop an immunohistochemical panel that reliably distinguishes SDC from IDC...
January 4, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29302898/systemic-non-hodgkin-t-cell-lymphomas-presenting-in-the-head-and-neck-region-an-institutional-experience-of-a-rare-entity
#6
Devin R Broadwater, Deniz Peker
T cell lymphoma (TCL) is a group of rare and aggressive diseases. TCL primary to head and neck organs often present as extranodal NK/T cell lymphoma, nasal type. Systemic TCL with initial head and neck presentation is extremely rare. Here we report our institutional experience. Clinicopathologic data was collected from patients diagnosed with TCL and treated at the University of Alabama at Birmingham between 2002 and 2012. Eleven cases of systemic TCL initially presented at head and neck region were identified...
January 4, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29282671/sinonasal-tract-solitary-fibrous-tumor-a-clinicopathologic-study-of-six-cases-with-a-comprehensive-review-of-the-literature
#7
Lester D R Thompson, Sean K Lau
Solitary fibrous tumors (SFTs) are well recognized in the head and neck region, but rarely arise in the sinonasal tract (SNT). Six primary SNT SFTs were identified in the files of Southern California Permanente Medical Group between 2006 and 2017. The patients included five males and one female ranging in age from 33 to 72 years (mean 52 years), most of whom presented clinically with nasal obstruction. Three tumors involved the nasal cavity alone, one involved the paranasal sinuses, and two involved both the nasal cavity and paranasal sinuses...
December 27, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29282670/localized-nasopharyngeal-amyloidosis-a-clinicopathologic-series-of-7-cases-with-a-literature-review
#8
REVIEW
Georgios Sakagiannis, Evangelos Giotakis, Lester D R Thompson
Localized nasopharyngeal amyloidosis is an extremely rare entity with only 25 cases described in the English and German literature. We present a case series of seven patients with localized nasopharyngeal amyloidosis and combine the findings with a thorough review the literature.
December 27, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29274042/sclerosing-epithelioid-fibrosarcoma-of-the-jaw-late-recurrence-from-a-low-grade-fibromyxoid-sarcoma
#9
Catherine Laliberte, Iona T Leong, Howard Holmes, Eric A Monteiro, Brian O'Sullivan, Brendan C Dickson
Sclerosing epithelioid fibrosarcoma (SEF) is an uncommon variant of fibrosarcoma that is characterized by a distinct morphology. It most frequently presents in the deep soft tissues of the lower extremities, often in intimate association with fascia and periosteum, although reports of the head and neck involvement have been reported. A minority of cases show morphological, immunohistochemical and molecular overlap with low grade fibromyxoid sarcoma (LG-FMS). Herein, we describe a case of a bland spindle cell neoplasm presenting in the jaw that was initially incompletely excised...
December 22, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29274041/intraoral-pigmented-low-grade-adenocarcinoma-not-otherwise-specified-case-report-and-immunohistochemical-study
#10
Jessica Luana Dos Santos, Albina Messias de Almeida Milani Altemani, Alexandre Elias Trivellato, Cássio Edvard Sverzut, Luciana Yamamoto Almeida, Lucas Ribeiro Teixeira, Alfredo Ribeiro-Silva, Jorge Esquiche León
Salivary adenocarcinoma, not otherwise specified (AdCaNOS) is a rare malignant tumor with potential diagnostic challenge, which mainly affects the parotid glands; however, the minor salivary glands can also be involved by AdCaNOS. This paper reports a case of a 45-year-old Afro-descendant woman complaining of a slow-growing mass with 6 months of evolution in the left superior vestibular fornix. Microscopic examination revealed an infiltrative epithelial neoplasm composed of predominantly solid growth pattern, arranged in a lobular configuration, admixed with glandular or ductal structures...
December 22, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29270859/sinonasal-leiomyosarcoma-clinicopathological-analysis-of-nine-cases-with-emphasis-on-common-association-with-other-malignancies-and-late-distant-metastasis
#11
Abbas Agaimy, Sabine Semrau, Michael Koch, Lester D R Thompson
Sinonasal tract (SNT) leiomyosarcoma (LMS) is exceedingly rare with < 100 cases reported. Their relationship to retinoblastoma and other malignancies, along with previous irradiation has not been clarified. Routine and consultation cases were reviewed for histologically and immunohistochemically proven SNT LMS. The tumors were tested with antibodies against α-smooth muscle actin, desmin, h-caldesmon, HMB45, S100 protein, Rb1, MDM2, CDK4 and EBV (EBER-ISH). Nine tumors affecting 5 males and 4 females aged 26 to 77 years (median: 48 years) were identified in the maxillary sinus (n = 4), nasal cavity (n = 3) and combined SNT (n = 2)...
December 21, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29243024/adenosquamous-carcinoma-of-the-tongue
#12
Yeshwant B Rawal, Kenneth M Anderson
A 51-year-old white female presented with a painful ulcer of the left ventrolateral tongue. An incisional biopsy confirmed a diagnosis of adenosquamous carcinoma. The adenosquamous carcinoma is an uncommon malignant tumor with histopathological features of a squamous carcinoma and an adenocarcinoma. A definitive diagnosis requires histopathological examination of a deep biopsy involving the submucosal tissue. This malignant tumor shows aggressive behavior with early invasive growth and a poor prognosis. The histopathological findings and differential diagnosis of a case of adenosquamous carcinoma of the tongue are discussed...
December 14, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29243023/lef-1-is-a-sensitive-marker-of-cribriform-morular-variant-of-papillary-thyroid-carcinoma
#13
Shalini Mohindra, Hany Sakr, Charles Sturgis, Deborah J Chute
Cribriform morular variant of PTC (CMV-PTC) frequently shows activation of the CTNNB1/Wnt pathway with nuclear accumulation of beta catenin. The utility of LEF-1, also in the CTNNB1/WNT pathway, in the diagnosis of CMV-PTC has not been previously studied. LEF-1 immunohistochemistry was performed on seven CMV-PTC, 52 benign cases and 101 malignant thyroid neoplasms. LEF-1 was scored by stain intensity (0 = no nuclear stain, 1 = weak nuclear stain, less than lymphocyte and 2 = strong nuclear stain, intense as lymphocyte) and percentage of positive cells at each intensity, for a maximum total score of 200...
December 14, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29235037/expression-and-significance-of-cytokeratin-7-a-squamocolumnar-junction-marker-in-head-and-neck-squamous-cell-carcinoma
#14
Mitra Mehrad, William D Dupont, W Dale Plummer, James S Lewis
The favorable features of high-risk human papillomavirus (HPV) in the head and neck are limited to those harboring transcriptionally-active HPV, which occur predominantly in the oropharynx (OP). Factors rendering the OP susceptible to HPV oncogenesis are largely unexplored. The role of cytokeratin 7 (CK7) in predisposition to HPV and cancer in the cervix has been evaluated. However, its significance in the H&N is unknown. CK7 immunohistochemistry was performed on a tissue microarray cohort of OP and non-oropharyngeal (NOP) squamous cell carcinomas (SCC) with known clinical follow-up and HPV E6/7 mRNA status...
December 12, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29190003/p16-immunohistochemistry-in-oropharyngeal-squamous-cell-carcinoma-using-the-e6h4-antibody-clone-a-technical-method-study-for-optimal-dilution
#15
James S Lewis, Jeremy Shelton, Krystle Lang Kuhs, Derek K Smith
Routine testing for p16 immunohistochemistry (with selective HPV-specific test use) has been recommended for clinical practice in oropharyngeal squamous cell carcinoma (OPSCC). Data suggests that the E6H4 clone performs best for this purpose, yet no studies have evaluated the optimal antibody concentration for OPSCC testing. We evaluated three concentrations (undiluted, 1:5, and 1:10) of the primary antibody solution for E6H4 using tissue microarrays from a cohort of 199 OPSCC patients with a > 70% staining cutoff for positivity...
November 30, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29190002/dentoalveolar-abscesses-not-associated-with-caries-or-trauma-a-diagnostic-hallmark-of-hypophosphatemic-rickets-initially-misdiagnosed-as-hypochondroplasia
#16
Silvia Elena Yacarini Paredes, Raquel Assed Bezerra Segato, Leila Daher Moreira, Alcides Moreira, Kranya Victoria Díaz Serrano, Clarissa Teles Rodrigues, Luciana Yamamoto Almeida, Jorge Esquiche León
Hypophosphatemic rickets is a rare genetic disorder involving the regulation of fibroblast growth factor 23 (FGF23), a phosphaturic agent, clinically showing bowing of the legs, short stature and dentoalveolar abscesses. A 7-year-old boy, with previous hypochondroplasia diagnosis, was referred to our pediatric dentistry clinic presenting short stature, bone deformities and sinus tracts at deciduous teeth apex levels not related with trauma, restorations or dental caries. After deciduous teeth extraction, due to root resorption and mobility, light microscopy exhibited typical hypophosphatemic dentin, and micro-computed tomography revealed tubular clefts and porosities throughout the teeth...
November 30, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29168109/a-case-of-glomangiopericytoma-at-the-nasal-septum
#17
Takashi Anzai, Tsuyoshi Saito, Sho Tsuyama, Miri Toh, Katsuhisa Ikeda, Shin Ito
Glomangiopericytoma (GPC) is a rare sinonasal perivascular tumor that accounts for < 0.5-1% of all sinonasal tumors. GPC is categorized as a low-grade neoplasm with borderline malignancy and a tendency of local recurrence. GPC is a rare mesenchymal neoplasm characterized by the perivascular proliferation of tumor cells, and it requires being distinguished from solitary fibrous tumors. Here, we report a case of GPC in a 68-year-old male patient who presented at the emergency room of our hospital with a complaint of sudden epistaxis...
November 22, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29164474/microcystic-calcifying-epithelial-odontogenic-tumor
#18
Celeste Sánchez-Romero, Román Carlos, Oslei Paes de Almeida, Mário José Romañach
Microcystic variant of calcifying epithelial odontogenic tumor is rare. We herein describe an additional well-documented case of microcystic CEOT. The affected patient is a Guatemalan 42-year-old female with an expansile well-defined mixed radiolucent-radiopaque lesion located in the right posterior mandible. The lesion was associated to an unerupted third molar. Histopathologic examination revealed nests and cords of moderately pleomorphic, eosinophilic polyhedral epithelial cells surrounded by a fibromyxoid stroma...
November 21, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29164473/clinicopathological-and-immunohistochemical-study-of-head-and-neck-langerhans-cell-histiocytosis-from-latin-america
#19
Natália Rocha Bedran, Román Carlos, Bruno Augusto Benevenuto de Andrade, Ana Paula Silva Bueno, Mário José Romañach, Cristiane Bedran Milito
Langerhans cell histiocytosis (LCH) is an inflammatory myeloid neoplastic proliferation with variable clinical behavior caused by the accumulation of CD1a(+)/CD207(+) histiocytes, associated with a variable number of eosinophils, lymphocytes, plasma cells and multinucleated giant cells, most commonly observed in male children. LCH is uncommon in the head and neck region, occurring as ulcerated and reddened plaques or nodules that cause destruction of adjacent soft tissues and bone. The exact etiology of LCH is still unknown and controversial, with possible etiologic role of viruses, including Epstein-Barr virus (EBV)...
November 21, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29139086/diagnostic-approaches-for-salivary-gland-tumors-with-secretory-and-microcystic-features
#20
Ha Young Woo, Eun Chang Choi, Sun Och Yoon
Secretory carcinoma (SC) of the salivary gland is a new entity that shares the unique morphologic features and cytogenetic characteristics of the ETV6-NTRK3 fusion gene with its breast counterpart. Before identification of SC of the salivary gland, it was most frequently diagnosed as acinic cell carcinoma (AciCC). We retrospectively reviewed our own database of salivary gland tumors harboring microcystic and papillary architecture and/or secretory features that were originally diagnosed as AciCC. We selected nine cases of AciCC showing diffuse S-100 expression on immunohistochemistry (IHC)...
November 14, 2017: Head and Neck Pathology
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