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https://www.readbyqxmd.com/read/27914228/osteoblastic-extraosseous-osteosarcoma-of-the-neck
#1
Andro Košec, Majda Vučić, Vladimir Bedeković, Mirko Ivkić
Extraosseous osteosarcoma as a primary tumor of the neck is exceedingly rare, with only a few cases reported to date. The most appropriate therapy is still under investigation. We report a case of an aggressive, right-sided, advanced-stage extraosseous osteosarcoma in a female patient. A 48-year-old woman presented with a right-sided infra-parotid mass encompassing neck regions II and III, measuring over 6 cm in craniocaudal diameter. She was initially treated by wide surgical resection. The definitive histopathologic diagnosis was osteoblastic extraosseous osteosarcoma...
November 16, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27874161/diffusion-weighted-magnetic-resonance-imaging-in-the-diagnosis-of-parotid-masses-preliminary-results
#2
Zeynel Yologlu, Hasan Aydin, Nalan A Alp, Bilgin K Aribas, Volkan Kizilgoz, Kemal Arda
To demonstrate the diagnostic potentials of MRI, diffusion weighted imaging (DWI), and apparent diffusion coefficient (ADC) mapping in the detection of parotid masses correlated to the histopathological results. Methods: Study design was retrospective. Fifteen patients with parotid gland masses were included as the study group and contralateral normal parotis glands of same patients were taken as the control group. Patients with bilateral parotid gland tumors were excluded, 7 right-sided and 8 left-sided parotid masses were included in the research...
December 2016: Saudi Medical Journal
https://www.readbyqxmd.com/read/27818467/application-of-cardiac-gating-to-improve-the-reproducibility-of-intravoxel-incoherent-motion-measurements-in-the-head-and-neck
#3
Koung Mi Kang, Seung Hong Choi, Dong Eun Kim, Tae Jin Yun, Ji-Hoon Kim, Chul-Ho Sohn, Sun-Won Park
PURPOSE: To prospectively evaluate whether cardiac gating can improve the reproducibility of intravoxel incoherent motion (IVIM) parameters in the head and neck, we performed IVIM diffusion-weighted imaging (DWI) using 4 b values (4b), 4 b values with cardiac gating (4b gating) and 17 b values (17b). METHODS: We performed IVIM DWI twice per person on nine healthy volunteers using 4b, 4b gating and 17b and five patients with head and neck masses using 4b gating and 17b...
November 4, 2016: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/27804946/-parosteal-osseous-lipoma-of-the-temporal-bone-concurrent-with-involvement-of-the-parotid-salivary-gland
#4
O V Dolzhansky, E M Pal'tseva, D V Bulanov, D N Fedorov
The paper describes a case of parosteal lipoma of the temporal bone, by simultaneously involving the parotid salivary gland. Computed tomography performed in a 48-year-old man showed that in the area of the posterior edge of the glenoid fossa of the right temporal bone there was a massive (1.5×1.7×0.9-cm) exostosis extending down from the skull base. The exostosis was surrounded by a 3.5×3.6×5.3 soft tissue mass that was located in the projection of the right parotid salivary gland with a capsule and minor calcifications...
2016: Arkhiv Patologii
https://www.readbyqxmd.com/read/27795774/-a-case-of-angiosarcoma-of-the-outer-ear
#5
Karima Issara, Zouhour Boughaleb, Nezha Tawfiq, Zineb Bouchbika, Nadia Benchakroun, Hassan Jouhadi, Souha Sahraoui, Abdellatif Benider
Angiosarcoma of the ear is a very rare and locally aggressive malignant tumor. It accounts for 4-5% of cutaneous sarcomas and less than 1% of all sarcomas. Our study aims to describe and discuss diagnostic and therapeutic modalities of this malignancy. We report the clinical case of a 31 year old patient with bulging mass of the pavilion of the left ear. CT scan was in favor of tumor of the pavilion of the ear invading ipsilateral parotid. Histological diagnosis was in favor of angiosarcoma. The treatment consisted of complete surgical resection followed by adjuvant radiotherapy...
2016: Pan African Medical Journal
https://www.readbyqxmd.com/read/27793123/invasive-myoepithelial-carcinoma-ex-pleomorphic-adenoma-of-the-major-salivary-gland-two-case-reports
#6
Takahiro Wakasaki, Marie Kubota, Yutaka Nakashima, Eri Tomonobe, Takenao Mihara, Junichi Fukushima
BACKGROUND: Myoepithelial carcinoma (MEC) is a rare salivary gland tumor. Its long-term prognosis remains unknown because of the paucity of reported cases with long-term follow-up. Although some case series exist, the clinical features of MEC vary considerably depending on the site of origin. Therefore, accumulation of these rare cases is important. CASE PRESENTATION: Case 1: An 89-year-old man presented with a 10-year history of a mass originating from the right parotid gland and involving the neck...
October 28, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27774363/extracranial-facial-nerve-schwannoma-treated-by-hypo-fractionated-cyberknife-radiosurgery
#7
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/27761290/a-rare-cause-of-hemifacial-spasm-papillary-oncocytic-cystadenoma
#8
Ozan Erol, Erdinç Aydın
BACKGROUND: Hemifacial spasm is a sudden, involuntary and synchronous spasm of the facial muscles. The most frequent cause of this condition is compression of the facial nerves due to vascular pathologies. The most commonly used method of treatment is Botulinum toxin injection. However, the gold standard treatment is surgical treatment. CASE REPORT: A 64-year-old male patient with hemifacial spasms, which had occurred due to a rare parotid mass that had been surgically treated, is presented in this case...
September 2016: Balkan Medical Journal
https://www.readbyqxmd.com/read/27756995/cytological-diagnosis-of-deep-seated-cellular-hemangioma-of-the-parotid-gland-by-using-cell-button-technique
#9
Sonam Sharma, Rahul Mannan, Tejinder Bhasin
Intraparotid hemangioma of the children is a rare neoplasm, posing diagnostic dilemma to the diagnosticians as well as treating clinicians. A 2-month-old male infant presented with a diffuse swelling in the parotid region since birth that was gradually increasing in size. The ultrasonography (USG) report was suggestive of a right intraparotid mass of uncertain etiology; whereas magnetic resonance imaging (MRI) report inclined toward a mass associated with chronic inflammatory pathology. Fine-needle aspiration cytology (FNAC) suggested two differentials - a vascular neoplasm of the parotid gland and a spindle cell neoplasm with increased vascularity...
July 2016: Journal of Cytology
https://www.readbyqxmd.com/read/27755360/hemifacial-spasm-secondary-to-parotid-pleomorphic-adenoma-with-stylomastoid-foramen-extension
#10
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...
October 12, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27738606/the-diagnostic-value-of-b-mode-sonography-in-differentiation-of-malignant-and-benign-tumors-of-the-parotid-gland
#11
Ali Khalife, Mehdi Bakhshaee, Behrouz Davachi, Leila Mashhadi, Kamran Khazaeni
INTRODUCTION: Different imaging modalities are used to evaluate salivary gland diseases, including tumors. Ultrasonography (US) is the preferred method on account of its ease of use, affordability, safety profile, and good tolerance among patients. The aim of this study was to evaluate the role of US in differentiating malignant from benign parotid tumors, in the context of previous controversy in the literature on this subject. MATERIALS AND METHODS: A cross-sectional study was performed in patients who presented to Qaem Medical Center with parotid masses and who were candidates for parotidectomy between June 2013 and January 2015...
September 2016: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/27738485/primary-b-cell-mucosa-associated-lymphoid-tissue-lymphoma-of-the-hard-palate-and-parotid-gland-report-of-one-case-and-review-of-the-literature
#12
Ipek Yonal-Hindilerden, Fehmi Hindilerden, Serkan Arslan, Nalan Turan-Guzel, Ibrahim Oner Dogan, Meliha Nalcaci
A 61-year-old woman was admitted to our hospital with an ulcerated palate mass and swelling of the right parotid gland. Incisional biopsy from the hard palate revealed an extranodal marginal zone B-cell lymphoma, also called mucosa-associated lymphoid tissue (MALT) lymphoma. Final diagnosis was MALT lymphoma of the parotid gland with concomitant involvement of an extremely seldom site of involvement: the hard palate. To our knowledge, this report illustrates the first case of MALT lymphoma of the hard palate and parotid gland without an underlying autoimmune disease...
November 2016: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/27720200/facial-nerve-schwannomas-review-of-80-cases-over-25-years-at-mayo-clinic
#13
Matthew L Carlson, Nicholas L Deep, Neil S Patel, Larry B Lundy, Nicole M Tombers, Christine M Lohse, Michael J Link, Colin L Driscoll
OBJECTIVE: To elucidate the long-term clinical behavior, treatment, and outcomes of sporadic facial nerve schwannoma (FNS) in a large cohort of patients managed in the post-magnetic resonance imaging era. PATIENTS AND METHODS: Retrospective review at a single tertiary health care system (January 1, 1990, through December 31, 2015), evaluating 80 consecutive patients with sporadic FNS. RESULTS: Ninety-eight patients with FNS were identified; 10 with incomplete data and 8 with neurofibromatosis type 2 were excluded...
October 5, 2016: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/27672580/right-parotid-fibrolipoma-a-rare-lesion-in-a-child
#14
Kamal Nain Rattan, Sunita Singh, Shruti Bansal
Lipoma rarely involves parotid gland especially in children. An 11-year-old boy presented with right parotid swelling. Preoperative workup including CT scan and FNAC gave suspicion of parotid gland lipoma. The diagnosis was confirmed on histopathology after complete excision of the mass.
September 2016: APSP Journal of Case Reports
https://www.readbyqxmd.com/read/27657318/parotid-gland-metastasis-in-merkel-cell-carcinoma-of-the-head-and-neck-a-series-of-14-cases
#15
Kristine E Day, William R Carroll, Eben L Rosenthal
Merkel cell carcinoma (MCC) is a rare cutaneous cancer of neuroendocrine cell origin that occurs frequently on the head and neck. With a high incidence of local recurrence and regional and distant metastasis, it carries a poor prognosis. We performed a retrospective study to determine the prognostic implications of parotid gland metastasis in MCC of the head and neck. Our study population was made up of 14 patients-13 men and 1 woman, aged 62 to 87 years (mean: 75.9)-who underwent a parotidectomy for the diagnosis of MCC over a period of 10 years and 9 months...
September 2016: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/27653787/anatomic-and-dosimetric-changes-in-patients-with-head-and-neck-cancer-treated-with-an-integrated-mri-tri-60-co-teletherapy-device
#16
Govind Raghavan, Amar U Kishan, Minsong Cao, Allen M Chen
OBJECTIVE: Prior studies have relied on computed tomography (CT) to assess alterations in anatomy among patients undergoing radiation for head and neck cancer. We sought to determine the feasibility of using magnetic resonance imaging (MRI)-based image-guided radiotherapy to quantify these changes and to ascertain their potential dosimetric implications. METHODS: Six patients with head and neck cancer were treated with intensity-modulated radiotherapy (IMRT) on a novel tri-(60)Co teletherapy system equipped with a 0...
September 21, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27650653/head-and-neck-inflammatory-pseudotumor-case-series-and-review-of-the-literature
#17
Sagar Kansara, Diana Bell, Jason Johnson, Mark Zafereo
Inflammatory pseudotumor (IP) is an uncommon idiopathic lesion that often imitates malignancy clinically and radiologically. Inflammatory pseudotumors have been found to occur in various sites but rarely in the head and neck. The histopathology, imaging, and treatment of three unique cases of head and neck inflammatory pseudotumors are described in this case series. Patients in Cases 1 and 2 presented with right level II neck mass and left parotid tail mass, respectively. The patient in Case 3 presented with otalgia, jaw pain and trismus, and a left parapharyngeal space mass...
September 20, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27631251/gallium-spect-ct-in-evaluation-of-igg4-related-disease-a-case-report-and-literature-review
#18
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/27627686/parotid-malignancies-are-not-homogenous-in-terms-of-their-presentation-on-dynamic-mri-a-preliminary-report
#19
Bogusław Mikaszewski, Karolina Markiet, Aneta Smugała, Dominik Stodulski, Edyta Szurowska, Czesław Stankiewicz
CONCLUSION: At least two groups of parotid malignancies exist, including one whose parameters of dynamic MRI closely resemble those of pleomorphic adenomas. Also tumors with long time to peak enhancement after administration of a contrast agent (Tpeak) and low washout rate (WR) should be considered malignant, especially single masses with concomitant lymphadenopathy located within the deep parotid lobe. OBJECTIVE: To verify if malignant tumors of the parotid are homogeneous in terms of parameters of preoperative dynamic MRI: Tpeak and WR...
September 14, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27623207/high-grade-transformation-of-salivary-gland-acinic-cell-carcinoma-with-emphasis-on-histological-diagnosis-and-clinical-implications
#20
Danielle Bury, Mugtaba Dafalla, Shabada Ahmed, Henrik Hellquist
Acinic cell carcinoma (ACC) is commonly thought of as a low grade malignant salivary neoplasm, and possibly has the best prognosis of all salivary malignancies with a 10-year survival of almost 90%. High grade transformation (HGT) in these tumours is a relatively rare event but is increasingly being reported. HGT (formerly referred to as dedifferentiation) in acinic cell carcinoma has shown to drastically reduce the survival rates and its recognition is imperative as more aggressive clinical management is needed...
November 2016: Pathology, Research and Practice
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