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Parotid enlargement

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https://www.readbyqxmd.com/read/28529250/impact-of-jaw-position-accuracy-on-dose-variation-in-volumetric-modulated-arc-therapy-using-jaw-tracking
#1
Fumiyasu Matsubayashi, Yuki Koizumi, Ryo Takahashi, Minoru Yoshioka, Tomoharu Sato
The technique of jaw tracking can be used in volumetric modulated arc therapy (VMAT) and intensity modulated radiation therapy (IMRT). In this technique, jaw tracks apertures of the multi leaf collimator (MLC) during irradiation. It is reported that dose variation is occurred by the changing accuracy of MLC position in VMAT and IMRT. Though jaw moves dynamically in the irradiation by using this technique, the influence of the jaw position accuracy on dose variation is not examined. The purpose of this study is to verify the influence of jaw position accuracy on dose variation in VMAT using jaw tracking...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28497708/salivary-gland-secretory-carcinoma-with-high-grade-transformation-cdkn2a-b-loss-distant-metastasis-and-lack-of-sustained-response-to-crizotinib
#2
Nicole A Cipriani, Elizabeth A Blair, Joshua Finkle, Jennifer L Kraninger, Christopher M Straus, Victoria M Villaflor, Daniel Thomas Ginat
BACKGROUND: Salivary gland secretory carcinoma is usually a low-grade neoplasm. However, high-grade transformation can occur and has important implications for clinical outcome. METHODS: A patient presented with an enlarging buccal mass. Magnetic resonance imaging (MRI) showed a tumor with a biphasic appearance along the right parotid duct. Local excision and histopathologic examination confirmed the diagnosis of secretory carcinoma with high-grade transformation...
May 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28468187/superficial-parotidectomy-plane-for-debulking-surgery-in-kimura-disease
#3
Rohit Sharma
Kimura disease (KD) is a rare chronic inflammatory disorder of unknown etiology representing as solitary or multiple subcutaneous nodules predominantly in the head and neck region. Common sites of involvement are preauricular region, forehead and scalp. The soft tissue localization is often associated with regional lymphadenopathy and enlargement of the major salivary gland. The authors report a patient with KD involving the right parotid and left temporal region managed successfully at our center using a combination of debulking superficial parotidectomy and medicinal therapy...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28447158/-ultrasound-diagnostics-in-sj%C3%A3-gren-s-syndrome
#4
REVIEW
V S Schäfer, W A Schmidt
Ultrasound of the salivary glands is a specific examination for detecting pathology of salivary glands in the diagnosis of Sjögren's syndrome. It is easy to learn, rapidly performed, non-invasive and inexpensive. Other imaging techniques, such as sialography and scintigraphy, are currently only rarely performed. For the examination, linear ultrasound probes with frequencies between 7 and 12 MHz are recommended. Such probes are already widely available to the rheumatologist performing musculoskeletal ultrasound...
April 26, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/28415058/-a-case-of-arteriovenous-malformation-of-the-parotid-gland-associated-with-cowden-disease
#5
Kazuhiko Nishi, Satoshi Murai, Hisakazu Itami, Shinji Otsuka, Noboru Kusaka, Tsukasa Nishiura, Nobuhiko Kimura, Kotaro Ogihara
We report a rare case of arteriovenous malformation(AVM)of the parotid gland associated with Cowden disease successfully treated with preoperative embolization followed by surgical removal. A 39-year-old man with a history of Cowden disease presented with a pulsating and growing mass on his left lower jaw. Contrast-enhanced computed tomography(CT)and angiography revealed a high-flow AVM in the deep lobe of the left parotid gland. After intravascular embolization of the feeding arteries, surgery was performed using the NIM-response<sup>®</sup>3...
April 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28333602/bilateral-basaloid-squamous-cell-carcinoma-of-the-parotid-gland-a-case-report-and-review-of-the-literature
#6
Alexander Rivero, Christopher G Tang, Barry M Rasgon
INTRODUCTION: We describe the first known case of bilateral basaloid squamous cell carcinoma of the parotid gland, and we review existing literature. CASE PRESENTATION: A previously healthy, 70-year-old white man presented with a 2-cm enlarging mass in the tail of the right parotid gland. Magnetic resonance imaging and computed tomography showed ipsilateral pathologic adenopathy. Results of fine-needle aspiration revealed a high-grade malignancy with squamous features...
2017: Permanente Journal
https://www.readbyqxmd.com/read/28330019/facial-nerve-tractography-a-new-tool-to-detect-perineural-invasion-in-parotid-cancers
#7
René-Charles Rouchy, Arnaud Attyé, Irène Troprès, Maud Medici, Adrian Kastler, Christian Righini, Alexandre Krainik
PURPOSE: To determine whether magnetic resonance (MR) tractography of facial nerve (VIIn) is useful to detect perineural invasion in case of parotid cancers. MATERIALS AND METHODS: Thirty patients, aged 18 or over, were enrolled in this prospective study between December 2013 and March 2016 (IRB 5891), with a diagnosis of parotid tumors (15 malignant, 15 benign). They have undergone preoperative MR scans (3.0-T) before surgical management. The parameters of the diffusion-weighted (DW) sequence were b-value of 1000s/mm(2); 32 directions; voxel size: 2mm isotropic; scan time: 9' The post-processing generates whole-neck constrained spherical deconvolution (CSD)-based tractography data and super-resolution track-weighted imaging (TWI) technique...
March 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28246588/intermittent-facial-spasms-as-the-presenting-sign-of-a-recurrent-pleomorphic-adenoma
#8
Rosalie A Machado, Sami P Moubayed, Azita Khorsandi, Juan C Hernandez-Prera, Mark L Urken
The intimate anatomical relationship of the facial nerve to the parotid parenchyma has a significant influence on the presenting signs and symptoms, diagnosis and treatment of parotid neoplasms. However, to our knowledge, hyperactivity of this nerve, presenting as facial spasm, has never been described as the presenting sign or symptom of a parotid malignancy. We report a case of carcinoma arising in a recurrent pleomorphic adenoma of the left parotid gland (i.e., carcinoma ex pleomorphic adenoma) that presented with hemifacial spasms...
February 10, 2017: World Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28217408/infantile-hemangioendothelioma-of-the-parotid-gland
#9
Rajas Chaubal, Om Tavri, Atul Sawant, Chitrangada Singh
A 4-month-old infant presented with a painless swelling overlying the left angle of mandible. Ultrasound and magnetic resonance imaging (MRI) revealed a large lesion replacing the entire left parotid gland, with multiple enlarged vessels. Homogeneous enhancement of the lesion was seen on the postcontrast MRI scans. Based on the imaging features, a diagnosis of infantile hemangioendothelioma of the parotid gland was offered. This helped in avoiding any further invasive testing.
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28182067/sialosis-cytomorphological-significance-in-the-diagnosis-of-an-uncommon-entity
#10
Sunil Vitthalrao Jagtap, Shakuntala S Aramani, Avinash Mane, Vijay Bonde
A diffuse, chronic, usually bilateral, noninflammatory, nonneoplastic enlargement of major salivary glands is termed as Sialosis or Sialadenosis. It is an extremely uncommon cause for enlargement of the parotid gland. We hereby present a case of a 45-year-old female patient having a swelling at the left preauricular region. The swelling was gradually increasing in size since 6 months. On clinical examination, the swelling was 3 cm × 3 cm, mobile, and nontender. On ultrasonography, it was suggestive of benign parotid lesion or parotitis with cervical lymphadenopathy...
January 2017: Journal of Cytology
https://www.readbyqxmd.com/read/28106687/superficial-parotidectomy-plane-for-debulking-surgery-in-kimura-disease
#11
Rohit Sharma
Kimura disease (KD) is a rare chronic inflammatory disorder of unknown etiology representing as solitary or multiple subcutaneous nodules predominantly in the head and neck region. Common sites of involvement are preauricular region, forehead and scalp. The soft tissue localization is often associated with regional lymphadenopathy and enlargement of the major salivary gland. The authors report a patient with KD involving the right parotid and left temporal region managed successfully at our center using a combination of debulking superficial parotidectomy and medicinal therapy...
January 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28059621/imaging-of-sialadenitis
#12
Ahmed Abdel Khalek Abdel Razek, Suresh Mukherji
Sialadenitis is an inflammation or infection of the salivary glands that may affect the parotid, submandibular and small salivary glands. Imaging findings vary among unilateral or bilateral salivary gland enlargement, atrophy, abscess, ductal dilation, cysts, stones and calcification. Imaging can detect abscess in acute bacterial suppurative sialadenitis, ductal changes with cysts in chronic adult and juvenile recurrent parotitis. Imaging is sensitive for detection of salivary stones and stricture in obstructive sialadenitis...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28028340/diffuse-large-b-cell-lymphoma-of-the-parotid-gland-cytological-histopathological-and-immunohistochemical-features-a-rare-case-report
#13
Sainath K Andola, Meenakshi M Masgal, Rajeev M Reddy
Primary malignant lymphomas of the salivary glands are rare, accounting for 2-5% of salivary gland tumors and 5% of extranodal lymphomas, frequently seen in the parotid gland. There are single case reports mentioned in the literature. Clinical presentation is not characteristic and the disease is often overlooked with delay in diagnosis and treatment. We are reporting a case of bilateral parotid gland lymphoma in a 55-year-old male, presented with bilateral enlarged parotids. Magnetic resonance imaging (MRI) showed bilateral enlarged parotid glands with multiple well-defined intraparotid lesions...
October 2016: Journal of Cytology
https://www.readbyqxmd.com/read/27843864/bilateral-painful-parotid-lumps-and-a-lump-in-the-groin-an-uncommon-presentation-of-common-kikuchi-s-disease
#14
Sumeet Prakash Mirgh, Jinendra Satiya, Jehangir Soli Sorabjee
Kikuchi-Fujimoto disease (KFD) is an under-recognized disease most commonly presenting with cervical lymphadenopathy, fever, and cytopenias in young females. Bilateral parotid enlargement is usually caused by infections (e.g., mumps) and autoimmune conditions (e.g., Sjogren syndrome). Parotid enlargement, inguinal lymphadenopathy, and pyrexia of unknown origin are uncommon presenting features of KFD and should be suspected in the appropriate setting.
April 2016: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/27774363/extracranial-facial-nerve-schwannoma-treated-by-hypo-fractionated-cyberknife-radiosurgery
#15
Ayaka Sasaki, Shinichiro Miyazaki, Tomokatsu Hori
Facial nerve schwannoma is a rare intracranial tumor. Treatment for this benign tumor has been controversial. Here, we report a case of extracranial facial nerve schwannoma treated successfully by hypo-fractionated CyberKnife (Accuray, Sunnyvale, CA) radiosurgery and discuss the efficacy of this treatment. A 34-year-old female noticed a swelling in her right mastoid process. The lesion enlarged over a seven-month period, and she experienced facial spasm on the right side. She was diagnosed with a facial schwannoma via a magnetic resonance imaging (MRI) scan of the head and neck and was told to wait until the facial nerve palsy subsides...
September 21, 2016: Curēus
https://www.readbyqxmd.com/read/27755360/hemifacial-spasm-secondary-to-parotid-pleomorphic-adenoma-with-stylomastoid-foramen-extension
#16
Eliot J Martin, Matthew L Carlson, Eric J Moore, Ryan S Jackson
OBJECTIVE: To report hemifacial spasm (HFS) as a rare presenting symptom of a benign parotid neoplasm involving the stylomastoid foramen. METHODS: Case report with literature review. RESULTS: An 18-year-old woman presented with a 1-year history of a progressively enlarging right infra-auricular mass with new onset ipsilateral severe HFS. Clinical vetting unveiled a palpable 2 cm, firm, minimally mobile mass medial to the angle of the mandible...
January 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/27671185/parotid-cystic-lesion-in-amelanotic-malignant-melanoma
#17
Vitorino Modesto Dos Santos, Manoel da Costa Gondim Neto, Tereza Rodrigues de Carvalho Vieira de Melo, Iara Machado Motta
A 60-year Brazilian woman, presented with an enlarged lymph node in the neck for one year, and a superficial nonulcerated lesion was observed in the scalp. Fine needle aspiration and biopsy of the lymph node revealed amelanocytic metastasis, and immunohistochemistry study showed Melan-A/ Mart-1 antigen (clone A103 and S-100 protein). The entire suspected area of the scalp was further resected and an amelanotic melanoma without angiolymphatic invasion was diagnosed. Ultrasonography and PET-computed tomography showed hypermetabolic cystic area in the right parotid...
September 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27634688/lymphoepithelial-infiltrate-of-palatal-minor-salivary-glands-implications-for-diagnostic-work-up
#18
R Medeiros, O P de Almeida, J C Leão, L A Gueiros
Benign lymphoepithelial lesions (BLLs) usually affect the parotid glands, resulting in their asymmetrical enlargement. The condition can be associated with Sjögren's syndrome (SS), which in turn may predispose the affected patient to the development of malignant lymphoma. BLLs arising in the intraoral minor salivary glands are rare; such a lesion should prompt the work-up for SS. In some instances, a BLL of a minor salivary gland could represent the initial stage of a mucosa-associated lymphoid tissue (MALT) lymphoma...
December 2016: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27631251/gallium-spect-ct-in-evaluation-of-igg4-related-disease-a-case-report-and-literature-review
#19
REVIEW
Tzyy-Ling Chuang, Bao-Bao Hsu, Chen-Lin Chi, Yuh-Feng Wang
BACKGROUND: The clinical picture of IgG4-related sclerosing disease (IgG4-RSD) may mimic lymphoma, and should be in the differential diagnosis of patients with this clinical picture. CASE SUMMARY: A 32-year-old female had recurrent swelling of both eyelids for more than 15 years. Examination revealed elastic, firm, swollen lacrimal glands about 2-3 cm in diameter that was not painful. Head and orbits magnetic resonance imaging (MRI) showed mass lesions over the bilateral lacrimal glands, submandibular glands, and left foramen of ovale...
September 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27538561/giant-parotid-pleomorphic-adenoma-in-a-nigerian-male
#20
O B Akintububo, O K Ogundipe, Z Y Kaltungo, M I Guduf, U H Pindiga, Y M Abdullahi
Pleomorphic adenoma (PA) is the most common benign salivary gland tumor, accounting for up to 60% of all tumors of the salivary gland and 75-80% of all parotid tumors. It has a slow but progressive growth pattern and if untreated can become greatly enlarged in size. However, giant PA is uncommon. We report a case of giant parotid PA of more than 10 years duration in a 60-year-old male Nigerian. A 60-year-old male patient with 10-year history of painless, massive, and pedunculated swelling in the left side of lower face measuring 25 cm × 23 cm × 17 cm in dimension...
September 2016: Nigerian Journal of Clinical Practice
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