Coexisting Benign Mixed Tumor and Mucoepidermoid Carcinoma of the Parotid Gland

1979 ◽  
Vol 88 (3) ◽  
pp. 327-330 ◽  
Author(s):  
Nicholas Pontilena ◽  
Robin M. Rankow
Keyword(s):  
Parotid Gland ◽  
Mucoepidermoid Carcinoma ◽  
Review Of The Literature ◽  
Mixed Tumor ◽  
Parotid Gland Tumors ◽  
Parotid Tumors ◽  
Benign Mixed Tumor ◽  
The Right

Multiple unilateral parotid gland tumors are very rare. A review of the literature shows only seven cases of coexisting unilateral parotid tumors. This patient had a benign mixed tumor and a mucoepidermoid carcinoma of the right parotid gland. This is the eighth reported case of multiple unilateral parotid tumors and the first to show such a combination of tumors.

Pleomorphic Adenoma (benign mixed tumor) of the Breast: An Immunohistochemical, Flow Cytometric, and Ultrastructural Study and Review of the Literature

1990 ◽  
Vol 93 (6) ◽  
pp. 795-801 ◽  
Author(s):  
William A. Ballance ◽  
Jae Y. Ro ◽  
Adel K. El-Naggar ◽  
David J. Grignon ◽  
Alberto G. Ayala ◽  
...  
Keyword(s):  
Pleomorphic Adenoma ◽  
Ultrastructural Study ◽  
Review Of The Literature ◽  
Mixed Tumor ◽  
Flow Cytometric ◽  
Benign Mixed Tumor

Huge Lipoma of the Right Parotid Gland: Case Report and Review of 42 Cases

2016 ◽  
Vol 95 (1) ◽  
pp. E8-E13 ◽  
Author(s):  
Timuçin Baykul ◽  
M. Asım Aydın ◽  
Yavuz Fındık ◽  
Derya Yıldırım
Keyword(s):  
Differential Diagnosis ◽  
Parotid Gland ◽  
Preoperative Diagnosis ◽  
Soft Mass ◽  
Parotid Region ◽  
Lipomatous Tumor ◽  
Parotid Tumors ◽  
Superficial Lobe ◽  
The Right

Lipomas are rarely found in the parotid gland region. Because of their rarity at this site, they are not often considered in the differential diagnosis of parotid tumors. The parotid lipoma is a slowly growing, asymptomatic, freely movable, soft mass. Preoperative diagnosis is generally difficult. We present a case of a slowly enlarging mass of the parotid region in a 44-year-old man that proved to be a lipomatous tumor of the parotid gland. We also review 42 other cases from the literature. Our patient's huge tumor was located in the superficial lobe of the gland, and a parotidectomy with preservation of the facial nerve was performed. There was no complication or recurrence of the tumor after a follow-up of 1 year.

scholarly journals Mucoepidermoid Carcinoma Associated with Osteosarcoma in a True Malignant Mixed Tumor of the Submandibular Region

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Dario Marcotullio ◽  
Marco de Vincentiis ◽  
Giannicola Iannella ◽  
Bruna Cerbelli ◽  
Giuseppe Magliulo
Keyword(s):  
Submandibular Gland ◽  
Mucoepidermoid Carcinoma ◽  
De Novo ◽  
High Grade ◽  
Mixed Tumor ◽  
Submandibular Region ◽  
Case Presentation ◽  
First Case ◽  
Malignant Mixed Tumor ◽  
Benign Mixed Tumor

Introduction. True malignant mixed tumor, also known as carcinosarcoma, is a rare tumor of the salivary gland composed of both malignant epithelial and malignant mesenchymal elements. Frequently carcinosarcoma arises in the background of a preexisting pleomorphic adenoma; however, if no evidence of benign mixed tumor is present, the lesion is known as carcinosarcoma “de novo.” We reported the first case of true malignant mixed tumor of the submandibular gland composed of high grade mucoepidermoid carcinoma associated with osteosarcoma.Case Presentation. A 69-year-old Caucasian male came to our department complaining of the appearance of an asymptomatic left submandibular neoformation progressively increasing in size over 3 months. We opted for surgical treatment. Histological examination confirmed the diagnosis of carcinosarcoma with the coexistence of high grade mucoepidermoid carcinoma and osteosarcoma.Conclusion. To the best of our knowledge, in the true malignant mixed tumor of the submandibular gland, mucoepidermoid carcinoma associated with osteosarcoma has never been previously reported.

scholarly journals Histogram analysis of dynamic contrast-enhanced magnetic resonance imaging in the differential diagnosis of parotid tumors

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Shiyu Xiang ◽  
Jiliang Ren ◽  
Zhipeng Xia ◽  
Ying Yuan ◽  
Xiaofeng Tao
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Parotid Gland ◽  
Benign Tumors ◽  
Resonance Imaging ◽  
Dce Mri ◽  
Dynamic Contrast Enhanced ◽  
Parotid Gland Tumors ◽  
Parotid Tumors ◽  
Contrast Enhanced

Abstract Objective Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) histograms were used to investigate whether their parameters can distinguish between benign and malignant parotid gland tumors and further differentiate tumor subgroups. Materials and methods A total of 117 patients (32 malignant and 85 benign) who had undergone DCE-MRI for pretreatment evaluation were retrospectively included. Histogram parameters including mean, median, entropy, skewness, kurtosis and 10th, 90th percentiles were calculated from time to peak (TTP) (s), wash in rate (WIR) (l/s), wash out rate (WOR) (l/s), and maximum relative enhancement (MRE) (%) mono-exponential models. The Mann–Whitney U test was used to compare the differences between the benign and malignant groups. The diagnostic value of each significant parameter was determined on Receiver operating characteristic (ROC) analysis. Multivariate stepwise logistic regression analysis was used to identify the independent predictors of the different tumor groups. Results For both the benign and malignant groups and the comparisons among the subgroups, the parameters of TTP and MRE showed better performance among the various parameters. WOR can be used as an indicator to distinguish Warthin’s tumors from other tumors. Warthin’s tumors showed significantly lower values on 10th MRE and significantly higher values on skewness TTP and 10th WOR, and the combination of 10th MRE, skewness TTP and 10th WOR showed optimal diagnostic performance (AUC, 0.971) and provided 93.12% sensitivity and 96.70% specificity. After Warthin’s tumors were removed from among the benign tumors, malignant parotid tumors showed significantly lower values on the 10th TTP (AUC, 0.847; sensitivity 90.62%; specificity 69.09%; P < 0.05) and higher values on skewness MRE (AUC, 0.777; sensitivity 71.87%; specificity 76.36%; P < 0.05). Conclusion DCE-MRI histogram parameters, especially TTP and MRE parameters, show promise as effective indicators for identifying and classifying parotid tumors. Entropy TTP and kurtosis MRE were found to be independent differentiating variables for malignant parotid gland tumors. The 10th WOR can be used as an indicator to distinguish Warthin’s tumors from other tumors.

scholarly journals Congenital Unilateral Agenesis of the Parotid Gland: A Case Report and Review of the Literature

2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Afshin Teymoortash ◽  
Stephan Hoch
Keyword(s):  
Case Report ◽  
Parotid Gland ◽  
Rare Condition ◽  
Clinicopathological Characteristics ◽  
Review Of The Literature ◽  
The Right ◽  
Left Parotid Gland

Congenital unilateral agenesis of the parotid gland is a rare condition with only few cases reported in the literature. A review of 21 cases in the available literature is presented in this article. We report on a further case of a 34-year-old woman with agenesis of the left parotid gland and lipoma of the right cheek. Clinicopathological characteristics of described cases in the literature were discussed.

scholarly journals Parotid gland tumors an evaluation at Tertiary Care Hospital.

2020 ◽  
Vol 27 (01) ◽  
pp. 80-83
Author(s):  
Agha Taj Mohammed ◽  
Sajda Khuhawar ◽  
Bibi Gulsama ◽  
Salman Shams
Keyword(s):  
Parotid Gland ◽  
Pleomorphic Adenoma ◽  
Malignant Tumor ◽  
Mucoepidermoid Carcinoma ◽  
Benign Tumor ◽  
Tertiary Care ◽  
Maxillofacial Surgery ◽  
Histopathological Diagnosis ◽  
Care Hospital ◽  
Parotid Gland Tumors

Objectives: To evaluate epidemiological pattern, early diagnostic tool and histological type of parotid gland tumors. Study Design: Prospective cross sectional study. Setting: Department of Oral & Maxillofacial Surgery& General Surgery Liaquat University hospital Hyderabad. Period: From 2013 to 2017. Material & Methods: Study contains 67 patients of parotid tumors after initial diagnosis. These patients were first diagnosed by FNAC (Fine needle aspiration cytology) along with CT scan & MRI where required. Final diagnosis was established after histopathological diagnosis of tumor. Results: Males were predominantly involved in both tumor patterns. Most common age group was 5th decade in both benign and malignant tumors. FNAC has diagnostic sensitivity of almost 90-97%. Out of 67, 51 tumors were benign and 16 were malignant. Pleomorphic adenoma was the most common benign tumor while mucoepidermoid carcinoma was found as most received malignant tumor. Conclusion: Pleomorphic adenoma is most commonly found benign tumor and mucoepidermoid carcinoma is found more in numbers as malignant tumor.

Bilateral Tumors of the Parotid Glands.

1975 ◽  
Vol 61 (1) ◽  
pp. 39-43 ◽  
Author(s):  
Vinicio C. Catania ◽  
Gaetano Bandieramonte ◽  
Bruno Salvadori
Keyword(s):  
National Cancer Institute ◽  
Mucoepidermoid Carcinoma ◽  
Malignant Tumors ◽  
Surgical Excision ◽  
Histologic Type ◽  
Mixed Tumor ◽  
Parotid Glands ◽  
Parotid Tumors ◽  
Total Parotidectomy

Bilateral parotid tumors occur very rarely; they account for 0.5 % of 544 cases of parotid tumors recorded at the National Cancer Institute of Milan from 1945 to 1974. Three cases of bilateral tumors are described; two tumors were synchronous and one metachronous. The patients were women of 51, 46 and 52 years. The histologic type was the same on both sides in all cases, namely adenolymphoma, mucoepidermoid carcinoma and mixed tumor respectively. Surgical excision was the treatment of choice; according to the histology of the tumors partial (adenolymphoma) or total parotidectomy (mixed and malignant tumors) was performed. As to the case of mucoepidermoid cancer of both parotid glands no recurrence was observed after five years.

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