Adenoid cystic carcinoma of the sublingual salivary gland: Case report of a rare clinical entity

Sublingual salivary gland tumors are very rare and most are malignant. We report a case of sublingual salivary gland tumor in a 48-year-old female presenting with a swelling in the floor of the mouth. Magnetic resonance imaging (MRI) findings suggested it to be a neoplastic mass involving left sublingual salivary gland. Fine needle aspiration cytology (FNAC) features based on matrix material and cells were indicative of Adenoid Cystic Carcinoma (ACC). Surgical excision of the lesion was done and postoperative adjuvant radiotherapy was recommended owing to positive surgical margins and capsular invasion. Microscopy confirmed the diagnosis as ACC displaying diverse patterns, along with neural and capsular invasion.