Work

Salivary Glands; Clinical & Histopathological Spectrum of Adenoid Cystic Carcinoma & Mucoepidermoid Carcinomas Reported at Tertiary Care Hospitals in Lahore

Year: 2017

Type: article

Abstract: Objectives: Adenoid cystic carcinoma (AdCC) and mucoepidermoid carcinoma(MEC) are the commonest salivary gland malignancies in Pakistan constituting almost 75%of all malignant salivary gland tumours. The objective of this study was explore the clinical &morphological spectrum of these tumours in local population and to grade them w.r.t. moderngrading criteria. Study Design: Descriptive study. Setting: Department of Morbid Anatomy andHistopathology/ Oral Pathology, University of Health Sciences Lahore, Pakistan. Period: Jan.2014 to Sep. 2015. Method: Paraffin embedded blocks and detailed clinical data of 20 caseseach of adenoid cystic carcinoma and mucoepidermoid carcinoma reported at local tertiarycare hospitals. The histologic diagnosis was made on Hematoxylin and Eosin staining. Thetumours were graded into grades I, II & III according to the most recent grading criteria. AdCCwas studied with respect to its morphological patterns (tubular, cribriform and solid) while MECwas studied with special concern to the cell types seen in it (mucous, intermediate, squamousand clear cells). Results: The most frequently observed age group for the patients of AdCCwas the 5th (45%) decade with mean age of 41.50±12.224 years and a female predilection of1.5:1. Minor salivary glands were the commonest site involved (80%) of which palate was mostfrequently affected (37.5%) followed by maxilla (25%). Grade I (75%) was most frequently notedgrade in AdCC. Cribriform pattern (60%) was the most frequently encountered predominanthistological pattern followed by equal distribution of tubular and solid Patterns (20% each).MEC affected most patients in 3rd (30%) decade with mean age of and 32.35±13.674 yearsand male predilection (60%). Parotid gland (70%) was the commonest site involved followedby maxilla (10%). Histologically, grade III (40%) was most frequently noted followed by gradeI (35%) and grade II (25%). Squamous cells (65%) were the predominant cell type in mostcases followed by mucous cells in (35%) cases. Conclusion: Adenoid cystic carcinoma andmucoepidermoid carcinoma both affect a younger age group in our population with a female(1.5:1) and male (1:1.5) predilection respectively. The most favoured site for AdCC and MEC ispalate and parotid gland respectively. Grade I AdCC and cribriform pattern are the commonestgrade and pattern encountered in this study. On the other hand, high grade (Grade III) MECis the most regularly encountered grade in MEC. So, proper grading and staging along withmeticulous surgical approach is needed to improve the life expectancy in these patients.

Source: The Professional Medical Journal

DOI: 10.29309/tpmj/2017.24.11.643