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Epidemiological, clinical, and histopathological features of salivary gland tumors among 150 sudanese patients: 10 years' experience

1 Department of Pathology, Faculty of Medicine, Omdurman Islamic University, Khartoum, Sudan
2 Department of Peadiatrics, Faculty of Medicine, Khartoum University, Khartoum, Sudan
3 College of Pharmacy, Al Ain University, Abu Dhabi Campus-Abu Dhbai, United Arab Emirates
4 Department of Basic Medical Sciences, College of Medicine, Ajman University, Ajman, United Arab Emirates
5 Department of Medicine, HIV Metabolic Clinic, Milton Keynes University Hospital NHS Foundation Trust, Eagelstone, Milton Keynes, Buckinghamshire, UK

Correspondence Address:
Mohamed H Ahmed,
Department of Medicine, HIV Metabolic Clinic, Milton Keynes University Hospital NHS Foundation Trust, Eagelstone, Milton Keynes, Buckinghamshire
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jmau.jmau_113_20

Background and Objectives: Salivary gland tumors (SGTs) are serious challenges to pathologists. Herein, we aimed to assess epidemiological and histopathological characteristics of SGTs among Sudanese patients. Materials and Methods: This retrospective descriptive study was undertaken at The pathology department in Khartoum State between 2008 and 2018. Patient records, histopathological reports, and slides were retrieved; and re-examined by two histopathologists. Diagnoses were reclassified according to the 2017 WHO classification of SGTs. Results: Overall, 150 cases of Sudanese patients with SGT were included (90 [60%] males and 60 [40%] females). Among these, 105 were benign (70%) and 45 were malignant (30%). The parotid glands were the most common site for both benign and malignant tumors (77/150; 51%: 59 benign (76.6%) and 18 malignant [23.4%]). The next common site was the submandibular gland (54 [36%]: 38 benign [70.3%] and 16 malignant [29.7%]), followed by minor salivary glands (19 [12.7%]: 8 benign and 11 malignant [57.9%]). Benign gland entities included pleomorphic adenoma (88/105; 83.7%), oncocytoma (5/105; 4.8%), myoepithelioma (4/105; 3.8%), Whartin tumors (3/105; 2.9%), basal cell adenoma (3/105; 2.9%), and sialolipoma (2/105; 1.9%). Malignant gland entities included adenoid cystic carcinoma (12; 26.7%), mucoepidermoid carcinoma (10; 22,2%), acinic cell carcinoma (6; 13.3%), poorly differentiated carcinoma (4; 8.9%), adenocarcinoma NOS (not otherwise specified) (4; 8.9%), basal cell adenocarcinoma (3; 6.7%), carcinoma ex pleomorphic adenoma (3; 6.7%), polymorphous adenocarcinoma (2; 4.4%), salivary duct carcinoma (1; 2.2%), and epithelial–myoepithelial carcinoma (2.2%). Conclusions: SGTs shared several epidemiological and histopathological features, exhibiting high incidence in the parotid and submandibular glands, lower prevalence in minor glands, and greater male predominance.

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