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pleomorphic adenoma

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https://www.readbyqxmd.com/read/28180194/prospective-evaluation-of-quasistatic-ultrasound-elastography-use-compared-with-baseline-us-for-parotid-gland-lesions-preliminary-results-of-elasticity-contrast-index-eci-evaluation
#1
Vito Cantisani, Emanuele David, Armando De Virgilio, Paul S Sidhu, Hektor Grazhdani, Antonio Greco, Marco De Vincentiis, Alessandro Corsi, Flaminia De Cristofaro, Luca Brunese, Fabrizio Calliada, Alfredo Blandino, Mario Tombolini, Giorgio Ascenti, Roberto Stramare, Marcello Caratozzolo, Ferdinando D'Ambrosio
AIMS: To assess the diagnostic value of elasticity contrast index (ECI) elastography, in comparison with conventional ultrasound for the differentiation of benign and malignant parotid lesions. MATERIAL AND METHODS: Sixty-three consecutive patients with parotid gland tumors, treated surgically at a single tertiary center were enrolled. Ultrasound evaluation consisted of B-mode, color-Doppler and quasistatic ultrasound elastography (USE), conducted with the ECI technique...
January 31, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28169907/endoscopy-assisted-transoral-versus-endoscopy-assisted-transcervical-minimal-incision-plus-mandibular-osteotomy-approach-in-resection-of-large-parapharyngeal-space-tumors
#2
Wei-Liang Chen, Song Fan, Zhi-Quan Huang, Da-Ming Zhang
BACKGROUND: Resection of the parapharyngeal space is often challenging. This study aims to evaluate the outcome of the endoscopy-assisted transoral approach for resection of the parapharyngeal space tumors compared with the endoscopy-assisted transcervical approach. METHODS: Twenty-three consecutive patients (15 males, 8 females) who underwent resection of large parapharyngeal space tumors via endoscopy-assisted transoral (ETO) approach or endoscopy-assisted transcervical minimal incision plus osteotomy of the vertical ramus outside the mandibular foramen (ETC + MO) approach were analyzed retrospectively...
February 6, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28139550/giant-pleomorphic-adenoma-of-submandibular-gland
#3
Sladjana Petrovic, Dragan Petrović
No abstract text is available yet for this article.
September 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28114213/unusual-presentation-of-castleman-disease-in-the-oral-cavity
#4
Eduardo Anitua, Laura Piñas, Mohammad H Alkhraisat
Castleman disease (CD) is a benign lymphoproliferative disease of unknown aetiology that rarely occurs in the head and neck region. Herein, the authors describe a patient of intraoral CD and its management. A 55-year-old female patient attended our clinic because of a 1-year history of a mass in the posterior hard palate region. Clinical and radiographic examination (cone-beam computed tomography scan), fine-needle aspiration, and incisional biopsy were performed. Both radiographic examination and fine-needle aspiration did not reveal relevant findings...
January 20, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28109484/pediatric-trans-oral-submandibular-gland-excision-a-safe-and-effective-technique
#5
C A Hughes, J Brown
INTRODUCTION: In the pediatric population the submandibular gland requires removal in a number of conditions including, refractory recurrent sialoadenitis, sialolithiasis, salivary gland neoplasms and debilitating sialorrhea. In comparison to the traditional trans-cervical approach, the trans-oral route avoids a cervical scar, potential keloid formation and decreased risk of injury to the marginal mandibular branch of the facial nerve. This approach also eliminates the potentiality of remnant duct disease since the entire duct and papillae are removed...
February 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28108899/a-case-of-mistaken-identity-the-role-of-lacrimal-gland-pleomorphic-adenoma-tissue-diagnosis
#6
Brent Skippen, Carol M Lane, Margaret Hourihan, Daniel S Morris
PURPOSE: Lacrimal gland lesions have diverse pathologies. Bone remodelling on imaging may suggest a benign lacrimal gland pleomorphic adenoma (LGPA) rather than a malignant process. METHODS: The authors report a case of malignant pleomorphic adenocarcinoma, which was misdiagnosed clinico-radiologically as a benign LGPA. Lesions with bone remodelling on CT imaging were subsequently analysed amongst a cohort of 31 lacrimal gland lesions from a single tertiary centre...
January 21, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28108853/brain-metastasis-of-carcinoma-ex-pleomorphic-adenoma-of-the-parotid-gland-case-report-and-review-of-the-literature
#7
Ruth Lau, Alejandro Fernández-Coello, Noemí Vidal-Sarró, Dennis Céspedes, Angels Camins, Miren Taberna, Andreu Gabarrós
We present an extremely infrequent case of brain metastasis of a parotid tumor. To our knowledge, this is the second case reported of a brain metastasis of a malignant parotid tumor, carcinoma ex pleomorphic adenoma. Pleomorphic adenoma represents 60% of tumors of the parotid gland, and although it is a benign tumor, it can transform into carcinoma ex pleomorphic adenoma in 5% of cases, one of the most aggressive neoplasms of the salivary glands. We want to note the need for an accurate diagnostic. Thanks to aggressive surgical management, our patient survived more than 1½ years...
March 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28097371/high-resolution-diffusion-weighted-imaging-for-solitary-orbital-tumors-3d-turbo-field-echo-with-diffusion-sensitized-driven-equilibrium-dsde-tfe-preparation-technique
#8
Akio Hiwatashi, Osamu Togao, Koji Yamashita, Kazufumi Kikuchi, Hiroshi Yoshikawa, Makoto Obara, Hiroshi Honda
PURPOSE: To differentiate cystic from solid solitary intraorbital tumors using 3D turbo field echo with diffusion-sensitized driven-equilibrium preparation without contrast material. MATERIALS AND METHODS: This retrospective study was approved by our institutional review boards, and written informed consent was waived. A total of 26 patients with intraorbital tumors were studied. Motion probing gradients were conducted at one direction with b‑values of 0 and 500 s/mm(2)...
January 17, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28076598/minor-intraoral-salivary-gland-tumors-a-clinical-pathological-study
#9
Dmitry José de Santana Sarmento, Maria de Lourdes Silva de Arruda Morais, Antonio de Lisboa Lopes Costa, Éricka Janine Dantas da Silveira
Objective: To evaluate the clinical-pathological profile of patients with minor salivary gland neoplasms. Methods: A retrospective study of specific cases diagnosed as benign and malignant tumors of the minor salivary glands was performed. The data were collected from medical records of patients seen at a hospital over a period of 15 years. The sample was made up of 37 cases. For the pathological study, slides containing 5μm thick sections stained with hematoxylin and eosin were used...
October 2016: Einstein
https://www.readbyqxmd.com/read/28076460/the-accuracy-of-fine-needle-aspiration-cytology-for-diagnosis-of-parotid-gland-masses-a-clinicopathological-study-of-114-patients
#10
Jens Kristjan Gudmundsson, Aida Ajan, Jahan Abtahi
Objective: Fine-needle aspiration cytology is a valuable method for preoperative assessment of head and neck tumors. However, its accuracy in detection of salivary gland masses is controversial compared with other methods. The aim of this work was to evaluate the effectiveness and accuracy of fine-needle aspiration cytology (FNAC) in the diagnosis of parotid gland masses. Material and Methods: Over a 10-year period, 126 parotid gland masses were resected. Retrospective chart reviews of 114 patients were performed...
November 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28072983/-progress-in-clinicopathologic-studies-of-mammary-pleomorphic-adenoma
#11
X Gao, Z G Sun, H W Guan
No abstract text is available yet for this article.
January 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28072982/-metastatic-pleomorphic-adenoma-of-lung-report-of-a-case
#12
D M Zhang, J G Wei
No abstract text is available yet for this article.
January 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28060371/basaloid-blue-salivary-gland-tumors
#13
Raja R Seethala
Basaloid tumors are a common diagnostic problem in salivary gland pathology. However, delineating each of these tumor types is facilitated by an algorithmic approach incorporated by tumor border and cell types. This approach greatly diminishes the challenge of separating polymorphous low-grade adenocarcinoma (PLGA) from adenoid cystic carcinoma (ACC). Despite the overlap in growth pattern, ACC is biphasic while PLGA is not. More relevant challenges, namely differentiation of the biphasic basaloid neoplasms including: epithelial-myoepithelial carcinoma (EMCA), cellular pleomorphic adenoma (PA), basal cell adenoma (BCA), and basal cell adenocarcinoma (BCAC), are resolved by a combination of morphologic, immunophenotypic, and to a limited extent, molecular features...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28052640/retrospective-analysis-of-benign-orofacial-tumors-at-a-tertiary-referral-center-in-saudi-arabia
#14
Nandimandalam Venkata Vani, Ali M Idris, Sanaa M Saleh, Faisal M Tubaigy, Fahd A Alharbi, Abubakr A Sharwani, Nabil Tadrus, Saman Warnakulasuriya
AIM: The aim of the present study was to analyze the prevalence of benign tumors of the orofacial region at a tertiary referral center in the south-western region of Saudi Arabia. METHODS: Cases from 2009 to 2014 were retrieved from October 2014 to June 2015 from the archives of the histopathology department of the center. Demographic and clinical details of the patients were recorded. RESULTS: Of the 714 oral and maxillofacial biopsy specimens, 78 (10...
January 4, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28043647/the-morphological-spectrum-of-salivary-gland-type-tumours-of-the-breast
#15
REVIEW
Maria P Foschini, Luca Morandi, Sofia Asioli, Gianluca Giove, Angelo G Corradini, Vincenzo Eusebi
Salivary gland like tumours of the breast constitute a wide spectrum of entities each one showing peculiar features and clinical behaviour. They can be subdivided as follows: (1) tumours showing pure myoepithelial cell differentiation, such as pure benign and malignant myoepitheliomas; (2) tumours with mixed epithelial and myoepithelial cell differentiation, such as pleomorphic adenoma, adenomyoepithelioma and adenoid cystic carcinoma; and (3) tumours with pure epithelial cell differentiation, such as acinic cell carcinoma, oncocytic carcinoma, mucoepidermoid carcinoma and polymorphous adenocarcinoma...
February 2017: Pathology
https://www.readbyqxmd.com/read/28035707/local-recurrence-of-cutaneous-mixed-tumor-chondroid-syringoma-as-malignant-mixed-tumor-of-the-thumb-20%C3%A2-years-after-initial-diagnosis
#16
Catherine M Nguyen, David S Cassarino
Benign cutaneous mixed tumor (chondroid syringoma) is the cutaneous counterpart of the benign mixed tumor (pleomorphic adenoma) of salivary glands, consisting of both epithelial and mesenchymal elements. The incidence of cutaneous mixed tumor is rare, composing <0.01% of all primary skin tumors. Herein, we report a case of malignant mixed tumor which recurred in the right thumb 20 years after the reported initial diagnosis of a benign mixed tumor at this site. Histologically, the lesion consisted of highly atypical and infiltrative cells in cords and ductal structures, with an adjacent focus of residual benign mixed tumor present...
December 30, 2016: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28031854/endobronchial-pleomorphic-adenoma
#17
Syed Rizwan Ali, Andrea Valeria Arrossi, Atul C Mehta, Laura Frye, Peter Mazzone, Francisco Almeida
Pleomorphic adenomas are the most common tumors of the salivary glands. Rarely, they occur as benign lesions in the lungs in both the central airways and the lung parenchyma. Herein, we present a case of a 60-year-old smoker who was incidentally found to have an endobronchial mass while undergoing evaluation for a lung nodule. During bronchoscopy, a smooth globular nodule was identified at the main carina and removed using electrocautery snare. Histopathology examination revealed this to be a pleomorphic adenoma...
December 2016: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28028431/oncocytic-pleomorphic-adenoma-of-palatal-salivary-gland-with-macrophages-and-giant-cells-associated-with-cholesterol-crystals
#18
Gargi S Sarode, Sachin C Sarode, Shankargouda Patil, Sukumaran Anil
Pleomorphic adenoma (PA) is the most common salivary gland tumor characterized by histo-morphological diversity in the form of myxoid, hyalinized, chondroid, osseous, and squamous areas. In this paper, we report a rare case of predominantly oncocytic variant of PA in a 45-year-old male patient on the posterior palatal region. Microscopic examination showed homogenous eosinophilic cellular mass composed of epithelial components arranged in the form of tubular and solid patterns. The polygonal and oval cells showed abundant dark eosinophilic granular cytoplasm...
October 24, 2016: Clinics and Practice
https://www.readbyqxmd.com/read/28012286/expression-and-clinical-significance-of-mir-26a-and-pleomorphic-adenoma-gene-1-plag1-in-invasive-pituitary-adenoma
#19
ChuanTing Yu, JiXia Li, FengNan Sun, JinPeng Cui, HuaLi Fang, GuoLang Sui
BACKGROUND Although pituitary adenoma is a malignant tumor, it can present as invasive growth in some cases. MicroRNA (miR)-26a has been found to be abnormally highly expressed in pituitary adenoma, indicating possible involvement in pathogenesis. As a known target gene of miR-26a, PLAG1 has abnormally low expression in pituitary adenoma. The correlation between miR-26a or PLAG1 expressional abnormality and occurrence of pituitary adenoma is still unknown, as is its association with invasiveness of pituitary adenoma...
December 24, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28008389/immunohistochemical-expression-of-cd56-and-aldh1-in-common-salivary-gland-tumors
#20
Safoura Seifi, Maryam Seyedmajidi, Jahanshah Salehinejad, Hemmat Gholinia, Fatemeh Aliakbarpour
INTRODUCTION: Natural killer (NK) cells, of which CD56 is a specific marker, play an important role in host defense against tumors. Cancer stem cells, of which aldehyde dehydrogenase isoform 1 (ALDH1) is an immunohistochemical marker, are a group of tumorigenic cells which are involved in migration and tumor recurrences. We aimed to evaluate the expression of ALDH1 and CD56 in common salivary gland tumors, as well as their relationship with each other and with a number of clinicopathologic factors...
November 2016: Iranian Journal of Otorhinolaryngology
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