Introduction: Benign tumour of submandibular glands are rare, however amongst those which happen, pleomorphic adenoma (PA) is the most common type. Although it has been reported in several case reports, giant pleomorphic adenoma is extremely uncommon. These tumours are usually painless and slow growing but when neglectedon some occasions, the long standing size and weight can augment surgical excision.
Case presentation: We report a rare unusual case of a giant submandibular pleomorphic adenoma in a 46 years old male patient which measured 9.1cm x8.9cm x9.1cm with the management there after being discussed.
Conclusion: Patient usually tend not to seek out for medical treatment till it became gigantic. Neglecting such tumors can cause unsightful appearance due to the gigantic mass and in a worse case scenario may even cause airway obstruction if it continue to enlarge.