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Parotid Gland Tumor

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https://www.readbyqxmd.com/read/29434851/bufadienolides-induce-p53-mediated-apoptosis-in-esophageal-squamous-cell-carcinoma-cells-in-vitro-and-in-vivo
#1
Shaohuan Lin, Junhong Lv, Panli Peng, Changqing Cai, Jianming Deng, Haihong Deng, Xuejun Li, Xinyue Tang
Bufadienolides are a type of cardiotonic steroids isolated from the skin and parotid venom glands of the toad Bufo bufo gargarizans Cantor, and exhibit wide-spectrum anticancer activities. However, the effects and mechanisms of bufadienolides on esophageal squamous cell carcinoma (ESCC) cells remain unknown. In the present study, the anticancer activities of two bufadienolides, bufotalin and bufalin, were examined in vitro and in vivo. The results demonstrated that bufotalin and bufalin effectively inhibited the viability of ESCC cells, with half-maximal inhibitory concentration (IC50) values of 0...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29434491/usefulness-of-a-novel-ultrasonographic-classification-based-on-anechoic-area-patterns-for-differentiating-warthin-tumors-from-pleomorphic-adenomas-of-the-parotid-gland
#2
Eriko Matsuda, Takahiro Fukuhara, Ryohei Donishi, Katsuyuki Kawamoto, Yasuaki Hirooka, Hiromi Takeuchi
Background: Ultrasonographic homogeneity is an important differential finding between Warthin tumor and pleomorphic adenoma, two types of benign parotid gland tumors, with the former likely to be heterogeneous and the latter homogeneous. However, differences in the performance of ultrasound machines or the homogeneity cut-off level affect the judgment of ultrasonographic homogeneity. Therefore, in this study, we adopted a novel system for classifying the composition of tumors via ultrasonography, using anechoic area as a substitute for differences in homogeneity to differentiate between Warthin tumors and pleomorphic adenomas...
December 2017: Yonago Acta Medica
https://www.readbyqxmd.com/read/29430614/non-enhanced-mri-in-combination-with-color-doppler-flow-imaging-for-improving-diagnostic-accuracy-of-parotid-gland-lesions
#3
Wei Zhang, Zhichao Zuo, Ningbin Luo, Lianfeng Liu, Guanqiao Jin, Junjie Liu, Danke Su
PURPOSE: To determine the value of non-enhanced MRI in combination with color Doppler flow imaging (CDFI) for differentiating malignant parotid tumors from benign ones. METHODS: This retrospective study analyzed 51 parotid gland lesions (39 benign and 12 malignant) in 51 patients who underwent preoperative CDFI as well as non-enhanced MRI including T1 -weighted, T2 -weighted, and diffusion-weighted imaging (DWI). Degrees of intratumor vascularity were categorized into four grades basing on CDFI findings...
February 12, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29419479/the-effect-of-total-tumor-volume-on-the-biologically-effective-dose-of-tumor-and-kidneys-for-177lu-labelled-psma-peptides
#4
Nusrat Begum, Anne Thieme, Nina Eberhardt, Robert Tauber, Ambros J Beer, Gerhard Glatting, Matthias Eiber, Peter Kletting
Aim: To simulate the effect of PSMA positive total tumor volume (TTV) on the tumor and organs at risk (OARs) biologically effective doses (BEDs) in patients with metastatic castration resistant prostate cancer (mCRPC) in 177Lu-PSMA radioligand therapy. Methods: A physiologically-based pharmacokinetic model was fitted to data of 13 patients treated with 177Lu-PSMA I&T. The tumor, kidneys and salivary glands BEDs were simulated for TTVs of 0.1-10 l. The activity and peptide amounts leading to an optimal tumor-to-kidneys BED ratio were also investigated...
February 1, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29403174/papillary-pattern-in-acinic-cell-carcinoma-of-parotid-gland-a-potential-diagnostic-pitfall-on-fnac
#5
Anju Bansal, Manveen Kaur, Varsha Dalal, Fouzia Siraj
Fine needle aspiration cytology (FNAC) is often the first investigation in the work up of salivary gland lesions. However, its diagnostic accuracy is limited by the high rates of false positives and false negatives. Usually, acinic cell carcinoma is prone to be underdiagnosed because of the cytological similarity of the tumor cells to normal acinar cells, however rarely, a predominant papillary architecture on cytology may cause confusion with adenocarcinomas. We present a case of a 45-year-old male with a painful swelling of the right parotid region...
January 2018: Journal of Cytology
https://www.readbyqxmd.com/read/29401144/incidental-detection-of-synchronous-lung-melanoma-on-18f-fdg-pet-ct-in-a-patient-with-parotid-gland-myoepithelial-carcinoma
#6
Ashwin Singh Parihar, Abhiram Ga, Karan Sood, Rajeev Kumar Seam, Vijay Kaushal, Ashwani Sood, Nandita Kakkar, Bhagwant Rai Mittal
The detection of synchronous or metachronous malignancies is on the rise with the advent of whole-body F-FDG PET/CT. It has shown its utility in detecting second primary carcinoma in patients undergoing imaging for evaluation of primary carcinoma, influencing the management and overall survival. Primary malignant melanoma of the lung is an extremely rare entity, accounting for 0.01% of all lung tumors. It is an even rare occurrence as a synchronous malignancy. We present the case of a 33-year-old woman with primary parotid myoepithelial carcinoma and incidental detection of second primary malignant melanoma of lung during F-FDG PET/CT imaging...
February 3, 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29397249/comparison-of-xerostomia-incidence-after-three-dimensional-conformal-radiation-therapy-and-contralateral-superficial-lobe-parotid-sparing-intensity-modulated-radiotherapy-for-oropharyngeal-and-hypopharyngeal-cancer
#7
Terufumi Kawamoto, Keiji Nihei, Yujiro Nakajima, Satoshi Kito, Keisuke Sasai, Katsuyuki Karasawa
OBJECTIVE: In the treatment of head-neck cancer, parotid-sparing intensity-modulated radiotherapy (IMRT) could reduce the incidence of xerostomia. When the parotid glands cannot be sufficiently spared because of the widespread tumor, contralateral superficial lobe parotid-sparing (CSLPS)-IMRT could be used to reduce marginal recurrence, however the success of this approach remains to be determined. The primary purpose of this study was to compare the incidence of xerostomia between three-dimensional conformal radiotherapy (3D-CRT) and CSLPS-IMRT for oropharyngeal and hypopharyngeal cancer...
January 31, 2018: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/29395283/a-rare-primary-leiomyosarcoma-of-the-parotid-gland-a-case-report-and-literature-review
#8
Lauren E Yue, Muhammad Qazi, Kimberly Kiplagat, Fred M Baik, Azita Khorsandi, Margaret Brandwein-Weber, Mark Urken
BACKGROUND: Leiomyosarcoma of the head and neck region is very rare. Primary parotid leiomyosarcoma has only been reported nine times in the medical literature. METHODS: A 68-year-old female presented with a left facial mass. Physical examination revealed a firm immobile mass at the level of the left parotid tail. No facial nerve dysfunction or palpable adenopathy was noted at the time of presentation. This patient underwent a superficial parotidectomy with a facial nerve dissection and left selective neck dissection...
January 27, 2018: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29394937/side-effects-of-ct-guided-implantation-of-125i-seeds-for-recurrent-malignant-tumors-of-the-head-and-neck-assisted-by-3d-printing-non-co-planar-template
#9
Yuliang Jiang, Zhe Ji, Fuxin Guo, Ran Peng, Haitao Sun, Jinghong Fan, Shuhua Wei, Weiyan Li, Kai Liu, Jinghua Lei, Junjie Wang
BACKGROUND: For the recurrence of head and neck cancer after operation and radiotherapy, the local control of radioactive seed implantation is good, and it has a certain palliative effect. This study aims to investigate the acute and late side effects of a three-dimentional printing non co-planar template (3D-PNCT) for computed tomography (CT)-guided radioactive 125I seed (RIS) implantation in recurrent cancer of the head and neck. METHODS: Between January 2016 and December 2016, forty-two patients with local recurrent malignant tumors of the head and neck received 3D-PNCT-assisted RIS implantation...
February 3, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29392045/importance-of-sonoelastography-in-assessing-non-thyroid-neck-masses
#10
Mustafa Şahin, İdil Tatar, Aydın Kurt, Ömer Bayır, Güleser Saylam, Baki Hekimoğlu, Hakan Korkmaz
Objective: To evaluate the feasibility and value of sonoelastography in assessing non-thyroid neck masses. Methods: Non-thyroid neck masses requiring surgical interventions were evaluated using conventional B-mode ultrasonography (US) (size, short/long axis rate, shape, hilum, echogenity, calcification, necrosis, and peripheral edema) and sonoelastograpy (SE) with strain ratio (SR) and elasticity score (ES) before surgery. These parameters were compared with the histopathological examination...
March 2017: Turkish Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/29390927/malignant-ewing-like-neoplasm-with-an-ewsr1-klf15-fusion-at-the-crossroads-of-a-myoepithelial-carcinoma-and-a-ewing-like-sarcoma-a-case-report-with-treatment-options
#11
Todd M Stevens, Morad Qarmali, Diana Morlote, Fady M Mikhail, Jeffrey Swensen, Zoran Gatalica, Gene P Siegal, Robert M Conry
We present a case of a malignant Ewing-like neoplasm of the parotid gland in a 20-year-old woman with an EWSR1-KLF15 gene fusion that presented with pulmonary metastasis. Despite the fact that the tumor was essentially immunohistochemically negative for keratins, p63, and p40, we interpret this neoplasm as an unusual form of a high-grade myoepithelial carcinoma based on its focal plasmacytoid cytology, chondromyxoid matrix, SOX10, S100 protein, and calponin expression, and the knowledge that the EWSR1-KLF15 gene fusion has, to date, only been identified in 2 tumors, both myoepithelial carcinomas of the kidney...
January 1, 2018: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29387304/soft-tissue-chondroma-in-the-preauricular-region-an-unusual-presentation
#12
Gabriele Bocchialini, Andrea Castellani, Anna Bozzola, Alessandro Rossi
Chondroma is a benign cartilaginous tumor composed of mature hyaline cartilage and represents only 2.38% of all osteocartilaginous tumors; cases that arise in the preauricular region are rarely found in the literature. This article presents an 80-year-old man with preauricular swelling on the right side and pain with no limitation of joint motion. This patient was evaluated by preoperative clinical manifestation, fine needle aspiration, ultrasound, and magnetic resonance imaging (MRI) scans. The MRI shows a solid lobulated lesion between the masseter muscle and the parotid gland whereas fine-needle aspiration did not provide a diagnosis...
March 2018: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29385293/application-of-sal-classification-to-parotid-gland-fine-needle-aspiration-cytology-10-year-retrospective-analysis-of-312-patients
#13
Ahmet Erdem Kilavuz, Murat Songu, Abdulkadir İmre, Secil Arslanoğlu, Yilmaz Özkul, Ercan Pinar, Düzgün Ateş
BACKGROUND: The accuracy of fine-needle aspiration biopsy (FNAB) is controversial in parotid tumors. We aimed to compare FNAB results with the final histopathological diagnosis and to apply the "Sal classification" to our data and discuss its results and its place in parotid gland cytology. METHODS: The FNAB cytological findings and final histological diagnosis were assessed retrospectively in 2 different scenarios based on the distribution of nondefinitive cytology, and we applied the Sal classification and determined malignancy rate, sensitivity, and specificity for each category...
January 31, 2018: Head & Neck
https://www.readbyqxmd.com/read/29344484/adenocarcinoma-of-the-retinal-pigment-epithelium-arising-in-conjunction-with-late-recurrence-and-systemic-metastasis-of-retinoblastoma
#14
Kelsey Roelofs, Femida Kherani, Laurie Russell, J Godfrey Heathcote, Ezekiel Weis
In 1974, an 8-month-old male was diagnosed with bilateral retinoblastoma. His left eye was enucleated, while the right eye was salvaged with a combination of external beam radiotherapy (4,000 cGy total, divided in 20 fractions) and retinal laser treatment. Thirty-nine years later, he developed intraocular recurrence of retinoblastoma with extrascleral spread. Histopathological examination also identified a second distinct malignancy, retinal pigment epithelium adenocarcinoma, arising in continuity with the retinoblastoma...
November 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29337642/perineural-invasion-in-parotid-gland-malignancies
#15
Phillip Huyett, Umamaheswar Duvvuri, Robert L Ferris, Jonas T Johnson, Barry M Schaitkin, Seungwon Kim
Objectives To investigate the clinical predictors and survival implications of perineural invasion (PNI) in parotid gland malignancies. Study Design Case series with chart review. Setting Tertiary care medical center. Subjects and Methods Patients with parotid gland malignancies treated surgically from 2000 to 2015 were retrospectively identified in the Head and Neck Cancer Registry at a single institution. Data points were extracted from the medical record and original pathology reports. Results In total, 186 patients with parotid gland malignancies were identified with a mean follow-up of 5...
January 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29302899/salivary-duct-carcinoma-and-invasive-ductal-carcinoma-of-the-breast-a-comparative-immunohistochemical-study
#16
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/29279827/parotid-mandibular-bone-defect-a-case-report-emphasizing-imaging-features-in-plain-radiographs-and-magnetic-resonance-imaging
#17
Miki Hisatomi, Luciana Munhoz, Junichi Asaumi, Emiko Saito Arita
Mandibular bone depression, also known as Stafne bone cavity, is defined as a bone depression filled mainly with salivary gland tissue. Parotid gland bone defects are infrequently observed. We report the case of a 52-year-old male patient who underwent radiographic examinations due to temporomandibular joint dysfunction, and a radiolucent area was detected in the mandibular ramus, with a provisional diagnosis of traumatic bone cyst or parotid mandibular bone defect. The patient was then referred for magnetic resonance imaging, which demonstrated a hyperintense area eroding the mandibular ramus, which corresponded to glandular tissue...
December 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/29274041/intraoral-pigmented-low-grade-adenocarcinoma-not-otherwise-specified-case-report-and-immunohistochemical-study
#18
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/29250681/acinic-cell-carcinoma-of-minor-salivary-glands-case-report
#19
Camelia Liana Buhaş, Elena Roşca, Gabriela MuŢiu, Alina Cristiana Venter, Bogdan Adrian Buhaş, Răzvan CouŢi, Camelia Florentina Ciobanu, Dragoş Mircea Roşca
Salivary gland tumors have a high incidence (90%) within the parotid gland. The acinic cell carcinoma (ACC) represents only 1-3% of the salivary gland tumors, most frequently affecting the parotid. The minor salivary glands rarely develop ACC and when the ACC is localized in these glands, generally, it has a less aggressive evolution. The main criterion in the diagnostic of ACC is the histological examination with the regular Hematoxylin-Eosin (HE) staining and additionally Periodic Acid-Schiff (PAS) special staining...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/29245272/epithelial-myoepithelial-carcinoma-with-high-grade-transformation-of-parotid-gland-a-case-report-and-literature-review
#20
Bowen Li, Hongyu Yang, Xia Hong, Yufan Wang, Feng Wang
RATIONALE: Epithelial-myoepithelial carcinoma (EMC) is regarded as a rare low-grade malignant tumor of the salivary gland, accounting for 0.4% to 1% of all salivary gland tumors. However, epithelial-myoepithelial carcinoma with high-grade transformation (EMC with HGT) is extremely rare, therefore it is easily to be inappropriately diagnosed and treated. Herein, we report an unusual case of EMC with HGT involving the parotid gland and discuss the clinical features and histological characteristic of EMC with HGT, in order to remind the doctors to take appropriate diagnosis and treatment...
December 2017: Medicine (Baltimore)
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